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An unusual 18ct gold opal, sapphire and diamond necklace pendant adorned with filigree work to the lozenge shaped back. Central cabochon opan with approx 6 pnts of round cut diamonds and similar size sapphires. Set to an 18ct gold bale. Total weight 5.3g / Size 4cms

Victorian Old European Cut Diamond, Opal, Platinum and 18 Karat Yellow Gold Ring. Unsigned. Good antique condition. Ring size (with sizer) 6. Approx. weight: 6.1 grams. Shipping $28.00 (estimate $1700-$2200)

AIG Certified 18.94 Carat Oval Shaped Cabochon Opal, 3.25 Carat Round Brilliant Cut Diamond and 14 Karat Yellow Gold Bracelet. Opal with bright green-orange play of color. Diamonds I-K color, I2-I3 clarity. Signed 14K. Very good condition. Measures 7" L. Approx. weight: 14.35 pennyweights. AIG report 0007159205 dated 8/7/2015 to accompany this lot. Shipping $30.00 (estimate $1600-$2400)

Grouping of Four (4) Victorian 9 Ct Gold Opal and Gemstone Rings. All stamped 375 with makers mark and English hallmarks. Good condition. Size range from 7 to 9-1/2. Total weighs approx. 7.0 pennyweights. Shipping $28.00 (estimate $200-$300)

Oval Cabochon Black Opal, Approx. 2.0 Carat Diamond and Platinum Ring. Diamonds E-F color, VVS-VS clarity. Opal measures 13mm x8mm. Unsigned. Very good condition. Ring size 4-1/2. Approx. weight: 6.3 grams. Shipping $28.00 (estimate $3500-$5000)

9ct gold ladies opal triple set ring size P

A 9ct gold ladies diamond, opal and garnet ring size M

A ladies dress ring, florally set with central claw set opal, surrounded by small blue sapphire coloured stones, on a part pierced shank, yellow metal, marks pitted, but probably .375

A ladies opal and garnet dress ring, on a highly elaborate shank, yellow metal marked .9 .375, 4g all in

9ct opal / emerald and white stone ring

9ct gold opal, emerald and diamond cluster ring, size M/N

A 9ct gold opal and diamond dress ring

A pair of synthetic opal ear studs, the small rub over set stones 4mm diameter, stamped '14k', butterfly fittings, 1.8gms

18ct white gold emerald and diamond seven stone ring, a Victorian turquoise seed pearl ring, an 18ct yellow gold opal dress ring and one other dress ring (4)

An 18ct gold and diamond ring, a 9ct gold and diamond ring together with a 9ct gold and opal ring. (3)

Pair of yellow metal opal drop ear pendants and an unmarked yellow gold band.

A COLLECTION OF JEWELLERY including a coral necklace, jade pendant, silver necklaces, rings, opal earrings, etc

Opal and pearl yellow metal dress ring (tested for high carat)

A 9 carat gold, sapphire and opal ring, boxed

A silver butterfly wing compact, Birmingham 1928), the cover painted with an Egyptian girl; a similar metal compact; a butterfly wing brooch; and a ring with simulated opal; also offered with a material decorative coin purse

An opal set ring, stamped '800', possibly Austro Hungarian; a Victorian pearl (untested and unwarranted) and enamel brooch; a spider bar brooch, stamped '9ct'; and other jewellery items

An emerald and simulated pearl ring; another set with an opal and sapphires, both probably Austro Hungarian

A 9 carat gold opal and cubic zirconia cluster ring, finger size O1/2, 3.4 g gross, cased

A 9ct gold and three stone opal ring, 2.9g, Q

A pair of 9ct gold and opal stud earrings

A 9ct gold, opal and green stone ring, 3.3g, O

A cut slice of red-brown sandstone with circular area of precious opal diffracting light in primarily blues and greens, in white card tray. 4.62 rams, 29mm (1"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1981) and previously J. R. Gregory & Co. (1898-1932); originally James Reynolds Gregory (1858-1898"). This item is part of the collection of fossils and minerals which has recently been reviewed by leading geological expert Dr. Ronald Bonewitz. The firm Gregory, Bottley and Lloyd (Gregory's), was acquired by TimeLine Auctions in 2016. London-born James Reynolds Gregory (1832-1899) founded the company, which is the second longest-running gem and fossil dealership in the world. James was educated at Archbishop Tennison's School, and afterward found employment in a jewellery company on Regent Street. In 1858 he established his own business in King William Street. A few years later he moved to ‘very extensive premises’ in Golden Square, Covent Garden. He was one of the best known dealers in London, exhibiting at major commercial shows throughout the world and winning awards for excellence in Paris in 1867, Sydney in 1879 and London in 1862, 1883 and 1884. James primarily bought his stock at auction, from collectors and other dealers, and supplied many major collectors and scientists of his day. He built superb personal collections, a selection going to the British Museum. He wrote many papers and was a member of several learned societies including the Society of Arts. The business became known as J.R. Gregory & Company in 1896, still under James' management with the assistance of his son Albert Gregory (b.1864"). When James died three years later, the business passed to Albert. At the end of the 19th century most London dealers had folded or retired, many selling out to J.R. Gregory & Co. Albert continued by acquiring Russell and Shaw (Est. 1848) in 1925 and Francis H. Butler (Est. 1884) in 1927. Percy Bottley (1904-1980) took over the company in 1931, renaming it Gregory, Bottley & Company with respect to his predecessors. Percy’s company survived the 2nd World War by buying out all of its competitors, including the supplier to Pitt-Rivers, Samuel Henson (Est. 1840) and G.H. Richards (Est. 1897) in 1936. Percy also added many important collections to his stock including those of Rev. F. Holmes in 1940, and the Graves collection in 1943. Following Percy's death in 1981, the business was sold to Brian Lloyd, whereupon it became Gregory, Bottley & Lloyd. Brian had been Sotheby’s main Natural History expert in the 1960s and 1970s, and subsequently traded from Pall Mall. The business continued to thrive, and Brian purchased the Joseph Neeld (1789-1856) collection in 1974 and the historic gold collection of H.S. Gordon, first exhibited at the Empire Exhibition, South Africa in 1936. Brian moved the business to 12-13 Rickett Street in 1982, and to 13 Seagrave Road in 1993. He carried on the company's specialization in historic collections, most recently acquiring that of Robert Ferguson (1767-1840) in 2000. The business moved to Walmer in Kent in 2008, and was acquired by TimeLine in April 2016. Trading History Est. 1858 (59 Frith Street, Soho) 1859 - 1861 (3 King William Street, Strand) 1862 - 1866 (25 Golden Square, Covent Garden) 1866 - 1874 (15 Russell Street, Covent Garden) 1874 - 1895 (88 Charlotte Street, Fitzroy Square) 1896 - 1906 (1 Kelso Place, Kensington) 1907 - 1926 (139 Fulham Road, Chelsea) 1926 - 1981 (30 (Old) Church Street, Chelsea) 1982 - 1993 (12-13 Rickett Street, Fulham) 1993 - 2007 (13 Seagrave Road, Fulham) 2008 - 2016 (59 Liverpool Road, Walmer, Kent) 2016 - (363 Main Road, Harwich, Essex) [No Reserve]. Extremely fine condition.

Cretaceous Period, Albian Stage, 113-100 million years BP. A large A-grade opal lustre Cleoniceras sp. ammonite from Madagascar, displaying the original shell and a clean centre. 772 grams, 15cm (6"). From the collection of the palaeontologist R Gledhill collected between 1930 and 1960. [No Reserve]. Fine condition.

A group of four polished A-grade opal lustre Cleoniceras sp. ammonites from Madagascar. 70 grams total, 15-25mm (1 1/4 - 2"). From the collection of the palaeontologist R Gledhill collected between 1930 and 1960. [4, No Reserve]. Fine condition.

A fine example of precious opal in a sawn sandstone block with polished sides, opal to both edges showing good 'fire' with blues and greens predominating, from Australia, in old white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.232-233. 183 grams, 69mm (2 3/4"). From Australia; from the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1981) and previously J. R. Gregory & Co. (1898-1932); originally James Reynolds Gregory (1858-1898"). This item is part of a historic collection of fossils and minerals which has recently been reviewed by leading geological expert Dr. Ronald Bonewitz. The firm Gregory, Bottley and Lloyd (Gregory's), was acquired by TimeLine Auctions in 2016. London-born James Reynolds Gregory (1832-1899) founded the company, which is the second longest-running gem and fossil dealership in the world. James was educated at Archbishop Tennison's School, and afterward found employment in a jewellery company on Regent Street. In 1858 he established his own business in King William Street. A few years later he moved to ‘very extensive premises’ in Golden Square, Covent Garden. He was one of the best known dealers in London, exhibiting at major commercial shows throughout the world and winning awards for excellence in Paris in 1867, Sydney in 1879 and London in 1862, 1883 and 1884. James primarily bought his stock at auction, from collectors and other dealers, and supplied many major collectors and scientists of his day. He built superb personal collections, a selection going to the British Museum. He wrote many papers and was a member of several learned societies including the Society of Arts. The business became known as J.R. Gregory & Company in 1896, still under James' management with the assistance of his son Albert Gregory (b.1864"). When James died three years later, the business passed to Albert. At the end of the 19th century most London dealers had folded or retired, many selling out to J.R. Gregory & Co. Albert continued by acquiring Russell and Shaw (Est. 1848) in 1925 and Francis H. Butler (Est. 1884) in 1927. Percy Bottley (1904-1980) took over the company in 1931, renaming it Gregory, Bottley & Company with respect to his predecessors. Percy’s company survived the 2nd World War by buying out all of its competitors, including the supplier to Pitt-Rivers, Samuel Henson (Est. 1840) and G.H. Richards (Est. 1897) in 1936. Percy also added many important collections to his stock including those of Rev. F. Holmes in 1940, and the Graves collection in 1943. Following Percy's death in 1981, the business was sold to Brian Lloyd, whereupon it became Gregory, Bottley & Lloyd. Brian had been Sotheby’s main Natural History expert in the 1960s and 1970s, and subsequently traded from Pall Mall. The business continued to thrive, and Brian purchased the Joseph Neeld (1789-1856) collection in 1974 and the historic gold collection of H.S. Gordon, first exhibited at the Empire Exhibition, South Africa in 1936. Brian moved the business to 12-13 Rickett Street in 1982, and to 13 Seagrave Road in 1993. He carried on the company's specialization in historic collections, most recently acquiring that of Robert Ferguson (1767-1840) in 2000. The business moved to Walmer in Kent in 2008, and was acquired by TimeLine in April 2016. Trading History Est. 1858 (59 Frith Street, Soho) 1859 - 1861 (3 King William Street, Strand) 1862 - 1866 (25 Golden Square, Covent Garden) 1866 - 1874 (15 Russell Street, Covent Garden) 1874 - 1895 (88 Charlotte Street, Fitzroy Square) 1896 - 1906 (1 Kelso Place, Kensington) 1907 - 1926 (139 Fulham Road, Chelsea) 1926 - 1981 (30 (Old) Church Street, Chelsea) 1982 - 1993 (12-13 Rickett Street, Fulham) 1993 - 2007 (13 Seagrave Road, Fulham) 2008 - 2015 (59 Liverpool Road, Walmer, Kent) 2016 - (363 Main Road, Harwich, Essex) . Extremely fine condition.

A sawn block of red-brown sandstone, polished on two sides, with areas of precious opal diffracting light in primarily purples, blues and greens, in white card tray. 162 grams, 87mm (3 1/4"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1981) and previously J. R. Gregory & Co. (1898-1932); originally James Reynolds Gregory (1858-1898"). This item is part of the collection of fossils and minerals which has recently been reviewed by leading geological expert Dr. Ronald Bonewitz. The firm Gregory, Bottley and Lloyd (Gregory's), was acquired by TimeLine Auctions in 2016. London-born James Reynolds Gregory (1832-1899) founded the company, which is the second longest-running gem and fossil dealership in the world. James was educated at Archbishop Tennison's School, and afterward found employment in a jewellery company on Regent Street. In 1858 he established his own business in King William Street. A few years later he moved to ‘very extensive premises’ in Golden Square, Covent Garden. He was one of the best known dealers in London, exhibiting at major commercial shows throughout the world and winning awards for excellence in Paris in 1867, Sydney in 1879 and London in 1862, 1883 and 1884. James primarily bought his stock at auction, from collectors and other dealers, and supplied many major collectors and scientists of his day. He built superb personal collections, a selection going to the British Museum. He wrote many papers and was a member of several learned societies including the Society of Arts. The business became known as J.R. Gregory & Company in 1896, still under James' management with the assistance of his son Albert Gregory (b.1864"). When James died three years later, the business passed to Albert. At the end of the 19th century most London dealers had folded or retired, many selling out to J.R. Gregory & Co. Albert continued by acquiring Russell and Shaw (Est. 1848) in 1925 and Francis H. Butler (Est. 1884) in 1927. Percy Bottley (1904-1980) took over the company in 1931, renaming it Gregory, Bottley & Company with respect to his predecessors. Percy’s company survived the 2nd World War by buying out all of its competitors, including the supplier to Pitt-Rivers, Samuel Henson (Est. 1840) and G.H. Richards (Est. 1897) in 1936. Percy also added many important collections to his stock including those of Rev. F. Holmes in 1940, and the Graves collection in 1943. Following Percy's death in 1981, the business was sold to Brian Lloyd, whereupon it became Gregory, Bottley & Lloyd. Brian had been Sotheby’s main Natural History expert in the 1960s and 1970s, and subsequently traded from Pall Mall. The business continued to thrive, and Brian purchased the Joseph Neeld (1789-1856) collection in 1974 and the historic gold collection of H.S. Gordon, first exhibited at the Empire Exhibition, South Africa in 1936. Brian moved the business to 12-13 Rickett Street in 1982, and to 13 Seagrave Road in 1993. He carried on the company's specialization in historic collections, most recently acquiring that of Robert Ferguson (1767-1840) in 2000. The business moved to Walmer in Kent in 2008, and was acquired by TimeLine in April 2016. Trading History Est. 1858 (59 Frith Street, Soho) 1859 - 1861 (3 King William Street, Strand) 1862 - 1866 (25 Golden Square, Covent Garden) 1866 - 1874 (15 Russell Street, Covent Garden) 1874 - 1895 (88 Charlotte Street, Fitzroy Square) 1896 - 1906 (1 Kelso Place, Kensington) 1907 - 1926 (139 Fulham Road, Chelsea) 1926 - 1981 (30 (Old) Church Street, Chelsea) 1982 - 1993 (12-13 Rickett Street, Fulham) 1993 - 2007 (13 Seagrave Road, Fulham) 2008 - 2016 (59 Liverpool Road, Walmer, Kent) 2016 - (363 Main Road, Harwich, Essex) . Extremely fine condition.

A block of red-brown sandstone with areas of precious opal diffracting light in primarily purples, blues and greens, in white card tray. 43 grams, 49mm (2"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1981) and previously J. R. Gregory & Co. (1898-1932); originally James Reynolds Gregory (1858-1898"). This item is part of the collection of fossils and minerals which has recently been reviewed by leading geological expert Dr. Ronald Bonewitz. The firm Gregory, Bottley and Lloyd (Gregory's), was acquired by TimeLine Auctions in 2016. London-born James Reynolds Gregory (1832-1899) founded the company, which is the second longest-running gem and fossil dealership in the world. James was educated at Archbishop Tennison's School, and afterward found employment in a jewellery company on Regent Street. In 1858 he established his own business in King William Street. A few years later he moved to ‘very extensive premises’ in Golden Square, Covent Garden. He was one of the best known dealers in London, exhibiting at major commercial shows throughout the world and winning awards for excellence in Paris in 1867, Sydney in 1879 and London in 1862, 1883 and 1884. James primarily bought his stock at auction, from collectors and other dealers, and supplied many major collectors and scientists of his day. He built superb personal collections, a selection going to the British Museum. He wrote many papers and was a member of several learned societies including the Society of Arts. The business became known as J.R. Gregory & Company in 1896, still under James' management with the assistance of his son Albert Gregory (b.1864"). When James died three years later, the business passed to Albert. At the end of the 19th century most London dealers had folded or retired, many selling out to J.R. Gregory & Co. Albert continued by acquiring Russell and Shaw (Est. 1848) in 1925 and Francis H. Butler (Est. 1884) in 1927. Percy Bottley (1904-1980) took over the company in 1931, renaming it Gregory, Bottley & Company with respect to his predecessors. Percy’s company survived the 2nd World War by buying out all of its competitors, including the supplier to Pitt-Rivers, Samuel Henson (Est. 1840) and G.H. Richards (Est. 1897) in 1936. Percy also added many important collections to his stock including those of Rev. F. Holmes in 1940, and the Graves collection in 1943. Following Percy's death in 1981, the business was sold to Brian Lloyd, whereupon it became Gregory, Bottley & Lloyd. Brian had been Sotheby’s main Natural History expert in the 1960s and 1970s, and subsequently traded from Pall Mall. The business continued to thrive, and Brian purchased the Joseph Neeld (1789-1856) collection in 1974 and the historic gold collection of H.S. Gordon, first exhibited at the Empire Exhibition, South Africa in 1936. Brian moved the business to 12-13 Rickett Street in 1982, and to 13 Seagrave Road in 1993. He carried on the company's specialization in historic collections, most recently acquiring that of Robert Ferguson (1767-1840) in 2000. The business moved to Walmer in Kent in 2008, and was acquired by TimeLine in April 2016. Trading History Est. 1858 (59 Frith Street, Soho) 1859 - 1861 (3 King William Street, Strand) 1862 - 1866 (25 Golden Square, Covent Garden) 1866 - 1874 (15 Russell Street, Covent Garden) 1874 - 1895 (88 Charlotte Street, Fitzroy Square) 1896 - 1906 (1 Kelso Place, Kensington) 1907 - 1926 (139 Fulham Road, Chelsea) 1926 - 1981 (30 (Old) Church Street, Chelsea) 1982 - 1993 (12-13 Rickett Street, Fulham) 1993 - 2007 (13 Seagrave Road, Fulham) 2008 - 2016 (59 Liverpool Road, Walmer, Kent) 2016 - (363 Main Road, Harwich, Essex) . Extremely fine condition.

Pair of opal, pearl and marcasite pendant ear-rings stamped 925 Condition Report Click here for further images, condition, auction times & delivery costs

Cultured pearl necklace with opal and amethyst set clasp stamped 18k, 80cm Condition Report Click here for further images, condition, auction times & delivery costs

A silver and cabochon opal set dress ring, size O -

A 9ct gold cabochon opal set five stone ring, size N

Large opal dress ring stamped 925 Condition Report Click here for further images, condition, auction times & delivery costs

Opal dress pendant stamped 925 Condition Report Click here for further images, condition, auction times & delivery costs

Graduating five stone opal ring stamped 925 Condition Report Click here for further images, condition, auction times & delivery costs

3 pairs of earrings (to include opal earrings A/F)

Gold opal & amethyst set ring

An opal and diamond ring, an oval cabochon opal in a yellow four claw setting, between four round brilliant cut diamonds in channel settings, to angular forked shoulders on a plain polished shank, finger size T The ring is in good condition. It is stamped '750' and in our opinion would test as gold. Total estimated diamond weight 0.04 carat approximately. The approximate qualities of the diamonds are; colour H/I/J, clarity SI1/SI2. Gross weight 7.80 grams. CR made 24th October 2016.

A synthetic opal and diamond pendant, of abstract form with a central panel of synthetic opal, between two bands of round brilliant cut diamonds in channel settings, total estimated diamond weight 1.25 carat approximately, measures 2.5cm by 2cm, on a fine chain braceletThe pendant/charm is in good condition. It is not hallmarked or stamped but in our opinion would test as gold. The approximate qualities of the diamonds are; colour H/I/J, clarity SI1/SI2/I1. Gross weight 13.62 grams. CR made 29th September 2016.

A 9ct gold garnet ring and an opal ring (2)

Five 9ct Gold Dress Rings, including single stone opal, a cluster, etc.

A 9ct Gold opal Set Brooch, claw set.

A Hallmarked Silver Insect Pendant, with opal highlights, on gilt chain stamped "925"; together with a pique work style brooch/pendant indistinctly together stamped "HECHOEN MEXICO" "Sterling Mexico" and an enamel swallows brooch. (3)

An Art Nouveau style opal fringe necklace, possibly by Murle Bennett & Co, the nine oval opal cabochons collet set in stylised, rounded and pierced lozenges of yellow precious metal, stamped 15ct and rubbed makers mark to reverse, joined by small section of fine chain and suspended from a chain with clasp stamped '15', overall length 45cm, maximum drop length 3.4cm

An Art Nouveau opal and red paste pendant, stamped '9ct' the four cabochons to a paste stone centre, on a Murrle Bennett Art Nouveau brooch fitting, stamped '9ct', 4.5g gross Condition report: Red paste extensively chipped, otherwise in good order. the pendant does not un-clip from the bar brooch

An opal, sapphire and diamond cluster ring, the round cabochon with an old brilliant cut to either side, totalling approximately 0.4 carats, and a sapphire above and below, with modern single cuts in between, stamped '18ct' 'Pt', finger size L1/2, 3.5g gross Condition report: Opal is in good condition, the sapphires are a bit rubbed, the larger two diamonds draw a bit of yellow and the smaller diamonds have inclusions

An opal and diamond cluster ring, the long cabochon approximately 19.7mm by 10mm by 6mm deep, enclosed by eighteen old brilliant cuts totalling approximately 1.44 carats, unmarked, finger size P, 7.7g gross Condition report: Stones are PI/J/K. Two chipped. Opal in good order as is mount.

An 18ct white gold ring set with a large pear shaped opal (approx. 19.73ct) surrounded by 1.66ct of rose cut diamonds (N.5).

A yellow metal (tested 18ct gold) ring set with a large oval cabochon cut opal, L. 2cm, (J.5).

A stunning 18ct yellow gold (stamped 750) pendant set with a large pear shaped black opal (100ct) surrounded by diamonds, L. 5.5cm.

AN OPAL AND DIAMOND THREE STONE RING IN GOLD MARKED 18CT & PLAT, 3.2G

A 22CT GOLD WEDDING RING LATER SET WITH AN ASSOCIATED OPAL TABLET, 4.8G

A pair of 9ct gold and amethyst drop earrings hung from pearl set wire fittings, a pair of opal ear studs and a sapphire and rose diamond bar brooch

A black opal doublet dress ring in a textured 18ct gold mount (a/f), 12.8g gross

An 18ct gold and opal ring, two 9ct gold rings and a locket

An opal five stone ring