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Lot 1016
A quantity of jewellery, including a silver Perrier bottle cap signed Cartier, an Art Deco silver and black-stone compact, an amber dragon-form pendant with gold mount, a heavy silver cuff bracelet mounted with lattice-form hardstones, a white gold brooch mount set within a border of circular sapphires, a jadeite circular disc, a pair of silver bulldog head cufflinks, two further pairs of cufflinks and three single cufflinks, a cabochon pink stone pendant with diamond-set cap, a section of boulder opal, nine Chinese oval-shaped mother-of-pearl counters, two modern silver rings each set with a section of black stone and a modern silver ring formed with graduated discs
Lot 117
Opal Tennis Bracelet, a wonderful display of colours from a continuous, articulated row of oval cabochon cut opals, totalling 9cts, mined in Ethiopia and set in 14ct gold vermeil and silver with an unusual, diamond accented, clasp; an elegant and comfortable to wear bracelet; 7.5 inches (18.75cms) long ( NB: To use the clasp: press the small thumb piece, between the circular clasp and the first cabochon, to lift the 'lid' of the clasp and insert the ring at the other end into the opening; release the top and the ring will now be securely held )
Lot 172
Opal and Emerald Halo Ring, a wonderfully domed cabochon cut opal of 2.25cts, giving displays of the intense internal opal colours from all angles; the opal is accented with four emeralds, at North, South, East and West within a shaped halo of round cut, natural white zircons, the whole in gold vermeil and silver; size R
Lot 6
Antique Period - Important and Stunning 18ct Gold Opal Set Bracelet of Large Proportions and Wonderful Design. c.1880-1890. The Opals of Excellent Colours and Well Matched. Est Opal Weight 22.00 cts, Weight of Bracelet 116 grams. Width 1.5 Inches - 3.75 cms & Length 8.5 Inches - 21.25 cms. Comes with Original Display Jewellery Box. Not Marked but Tests High Ct Gold. The Condition In All Aspects Is Brilliant. Low Estimate for This Quality.
Lot 131
ATTRIBUTED TO WILHELM SCHMIDT: AN OPAL CAMEO, CIRCA 1900The oval boulder opal cameo depicting the head of the goddess Minerva, with a dragon on her helmet, in profile, facing right, mounted as a pendant with rose-cut diamond frame, length of cameo 2.0cm Footnotes:The talented German gem engraver, Wilhelm Schmidt, (1845-1938), claimed to have cut the first opal cameo in Europe in 1874 by inventing a process to utilise the matrix of rough opal for the ground. The jeweller John Brogden exhibited Schmidt's first opal cameo at the Paris Exhibition in 1878. Schmidt was born in Idar Oberstein, the European centre of the mineral, gemstone and lapidary trades. At the age of 15, he was sent to Paris as an apprentice and was taken under the wing of cameo-cutter, Arsène, who trained him in the neo-classical tradition. Despite his prodigious talent and winning prizes for drawing and draughtsmanship, by the time he graduated in the 1860s, the French fashion for stone cameos, either mounted as jewellery or as collectables for amateur students of antiquity, was waning.Eventually, after several tough years, Schmidt settled in London, where he set up an engraving business in Hatton Garden, trading alongside his gem-dealing brother Louis, who imported numerous unusual and rare specimens with which he could work. Schmidt carved cameos for many of the best jewellery firms, including John Brogden, Guiliano and Child & Child, and attracted several prestigious patrons including the Museum of Practical Geology, to whom he sold cameos engraved from quartz, sardonyx, jasper, labradorite, moonstone and of course – the most unusual stone of all – opal, which was to become his trademark.Carving opal is a hazardous undertaking to say the least, as opal can crack and spoil if the temperature conditions fluctuate. To quote the late scholar Gertrud Seidmann, a connoisseur of Schmidt's work, and to whom we are indebted for our knowledge of him:'opal cameos, if rare, were not unknown (in the 19th century) but Schmidt had invented a novel technique: instead of carving the whole cameo from precious opal, he used blanks with a thin layer of precious opal overlaying the matrix, in the same way in which the contrasted layers of agates were traditionally used to set off the background.'Schmidt never signed his work and the cameos he produced for jewellery shops and dealers were never credited to him. Examples, attributed by Seidmann, are in the collections of the Natural History Museum, London, the British Museum and the Fitzwilliam Museum, Cambridge. For further information see:Seidmann, Gertrud. 1988. Wilhelm Schmidt: The Last Neo-Classical Gem-Engraver. London: Source Title: Apollo CXXVIII No. 317 (July-1988). Illustrated Catalogue of Gems, Cameos & Amber Collected by A. Booth, Gloucester, published before 1923.For further information on this lot please visit Bonhams.com
Lot 133
An early 20th century black opal and diamond ring, scroll setting set with three precious black opal cabochons measuring approx. 5mm x 4.5mm x 2mm, 5mm x 3mm x 2mm and 4.5mm x 3mm x 2mm, four old cut diamonds weighing approx. 0.28 carats in total, band with sponsor's mark, marked '18' and date letter 'L', gross weight 5.07g, size N. Condition - good, central cabochon with slight chip and abrasions, other minor abrasions, diamonds sold without certificate however they are bright and lively, inclusions visible with 10x loupe, no yellowness, band with minor wear only.
Lot 230
An early 20th century precious opal and diamond ring, the central oval cabochon measuring approx. 5mm x 3mm, total approx. diamond weight 0.20 carats, band unmarked, gross weight 2.51g, size R. Condition - general wear including minor wear to band, light abrasions to stones but no crazing/dehydration.
Lot 1106
Two 18ct yellow gold rings, six 9ct yellow gold rings, including a rose gold signet ring, a further signet ring, turquoise set ring, an opal set ring and an unmarked yellow metal diamond and turquoise ring, total approx 25.2g (9).Additional InformationSome discolouration to stones, some heavy abrasions to the surfaces of some stones, some hallmarks rubbed, general surface wear throughout.
Lot 1118
Four 9ct yellow gold dress rings including a three stone example set with an oval cabochon, size M1/2, a black opal example, size O, an opal and purple stone example, size O1/2 and a further ring with pale yellow stone, size O, combined approx 12.5g (4).Additional InformationThe opal on the three stone ring is chipped to the edges, the black opal is set in such as way that you cannot see to the back to see whether this a doublet or indeed foil backed. The purple and opal stone ring has abrasions to the stones and some wear to the tips of the claws. The pale yellow stone is very dirty and quite clouded.
Lot 1129
A collection of silver and costume jewellery, to include a Continental 935 standard silver fob watch, a white metal belcher link necklace stamped ‘925’, an engraved white metal band stamped ‘375’, a yellow metal and opal dress ring, a white metal bracelet set with feldspar ovals, etc (qty).Additional InformationWatch not running. All of the feldspar ovals either scratched / cracked or chipped. General light age wear and a little grubby to all.
Lot 1135
A collection of loose gem stones comprising ruby, 1.12ct, sapphire, 1.24ct, emerald, 1.48ct, pink tourmaline, 1.31ct, green tourmaline, 1.30ct, sky blue topaz, 14.21ct, rhodolite, 3.47ct, peridot, 4.08ct, opal, 1.46ct, iolite, 3.07ct, tanzanite, 0.99ct, garnet, 5.11ct, citrine, 5.67ct, amethyst, 7.84ct, and aquamarine, 2.57ct, also sold with an 18ct yellow gold ring set with six square princess cut stones, size M.Please note that VAT will be applied to the hammer price on this lot as well as the buyer’s premium due to the loose gemstones.
Lot 1214
An Edwardian 15ct yellow gold diamond and opal hinged bangle, with central old cut diamond flanked by two oval opal cabochons with raised decoration to the upper frame, hallmarked for Birmingham 1906, external width 65mm, internal width approx. 60mm, weight approx. 11.6g.Additional InformationThe diamond is of poor quality and measures approx. 3mm in diameter. The pair of opals each measure approx. 10mm x 3.5mm. The hallmarks are legible but slightly rubbed. It retains a good shape and it has a safety chain. It is quite tarnished with light surface wear but both opals are free from any cracks and they are not doublets, you can just see to the back of each cabochon.
Lot 1299
A yellow metal and opal and diamond bar brooch, the central opal cabochon set within a border of sixteen old cut diamonds, length 65mm, weight approx. 4.25g.Additional InformationThe opal appears to have a fault or mark running right through it creating a clouded area, also light surface scratches. The diamonds are included. The piece is unmarked with general surface scratches throughout. The size of the circular platform is approx. 11mm. The opal is approx. 7mm x 6mm.
Lot 1300
A cased French yellow metal trembleuse yellow metal, opal and butterfly wing brooch in the form of a butterfly with four separate wings with opal and pale pink stones set to the abdomen, bearing indistinct hallmark, and with pin brooch back, the fitted box inscribed Russells Ltd Manchester, width 62mm, approx 20.6gAdditional InformationThere is some deterioration to the butterfly wings which are capped beneath glass. Some surface abrasions to the pink stones and the opal which are quite crudely set. Light general surface wear throughout.
Lot 1323
A 15ct gold opal set bracelet, the gate link bracelet set with seven oval opals, with guard chain, gross weight approx. 19.5g.Additional InformationStamped 15c to the back of the clasp. Each of the opals with some slight surface scratches otherwise good. It is not easy to measure the length of this item as it has a guard chain which means it does not lay flat. We have used a flexible dressmakers tape measure and suggest that it might be approx 17cm in length though this is not definitive.
Lot 1015
An 18ct yellow gold platinum mounted black opal and diamond set ring, the domed opal cabochon set within a border of small diamonds, size S, approx 6g.Additional InformationThe opal measures approx 9.5mm x 9mm, it is not a doublet or triplet. There is a small surface mark which appears to be a natural fault line bit this is only approx 2mm. Otherwise light surface abrasions but a good colour. The diamonds are too small to grade. General surface wear.
Lot 1021
A yellow metal black opal and white opal ring, the central oval cabochon above a border of fourteen further white opals in claw setting, size M 1/2, approx 4.6g.Additional InformationThe black opal is free from any cracks and damage with only light surface marks and natural inclusions in the stone itself. The white opals are well matched, some with inclusions, general surface wear to the band.This should be straight forward to re-size
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74393 item(s)/page