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Lot 549
GOLD, DIAMOND AND SYNTHETIC VERNEUIL RUBY RING, AUSTRO-HUNGARIAN, CIRCA 1910 the carved oval synthetic ruby mounted with a central collet set circular diamond in an openwork ovoid bezel between spear head shoulders on a reeded shank, 14 carat Viennese gold mark for 1866-1922, 9 carat gold London assay mark size T The first synthetic rubies were attempted in 1837 by Marc Gaudin and later developed in 1877 by the French chemists Edmond Frémy and Charles Feil. It was not until 1904 that Frémy and Auguste Verneuil invented a furnace which could produce a 'boule' that commercial production became feasible. An artificial/synthetic stone has all the qualities that are desirable in a natural stone, except they are made in a laboratory. They have the same appearance, chemical composition and therefore physical characteristics of a natural stone. These include: their crystal structure, how they refract light (Refractive Index), colour dispersion, Specific Gravity and most importantly for the wearer, hardness. This ring is stamped with Austro-Hungarian fourteen carat gold marks used between 1866-1922, indicating that this Verneuil ruby is a historically interesting early product of the flame fusion technique pioneered by Frémy and Verneuil. At the time, whilst producing a marvellous colour, this stone would have arguably been as costly and difficult to create as a natural, mined example.
Lot 558
ËœJAEGER-LECOULTRE, REVERSO, REF.265.1.86: LADY'S EIGHTEEN CARAT GOLD, DIAMOND AND RUBY WRISTWATCH calibre 846 hand-wound mechanical movement, the rectangular textured silver dial with gold Arabic numerals, baton indicators and hands decorated with a horizontal row of single-cut diamonds and four circular rubies to the top and bottom of the bezel, the case revolving to reveal the obverse with engraved monogram 'CF' within a border of similarly cut diamonds with rubies to the terminal points, a ruby cabochon crown, red crocodile strap with gold buckle, signed to dial, case, movement and buckle, case No 1837260, 18 carat gold Swiss marks, length of strap including buckle 220mm approximately
Lot 189
A foil back ruby and diamond dress ring, the oval shape foil back ruby duo with an oval shape ruby and rose cut diamond coronet, to the similarly cut ruby and diamond chip sides, ring size R, gross weight 5g.Condition report: Overall condition fair Scratches abrasion and discolouration in keeping with general wear Principal gems are doubly refractive on refractometer. Some abrasion and scratches to gemstones
Lot 105
A pair of ruby and diamond earrings, each designed as a pear shape ruby and brilliant cut diamond cluster suspended from a similarly cut diamond line surmount, estimated total diamond weight 1.20cts, length 3.2cm, gross weight 8.5g.Condition report: Overall condition good to fair Scratches, abrasion and discolouration in keeping with occasional wear Diamonds bright and well matched Rubies a medium to dark pinkish red with good saturation and typical inclusions, some visible with the unaided eye One ruby with a surface reaching fracture, reaching from point of pear down the crown facets
Lot 182
A vari gem cluster ring, the trio of brilliant cut diamond and circular shape ruby, emerald and sapphire floral clusters with marquise shape diamond petal accents, estimated total diamond weight 0.80ct, ring size K1/2, gross weight 7g.Condition report: Overall condition good to fair Diamonds bright and well matched, only light scattered inclusions visible with magnifification Emeralds, rubies and sapphires with good saturation and typical inclusions Ring resized Some very light abrasion to gemstones, hard to see with magnification
Lot 81
A vari gem bug brooch, the bug with oval shape amethyst and split pearl body, ruby eyes and old cut diamond wings, atop the polished bar with split pearl accent, estimated total diamond weight 0.70ct, length 5cm, gross weight 7.2g.Condition report: Overall condition good to fair Scratches discolouration and abrasion in keeping with age and wear Soft solder marks to the reverse of the brooch, to bug attachment Amethyst a medium purple with fair saturation and typical inclusion - tiger stripe inclusion visible with the unaided eye With safety clasp Diamonds bright and well matched - one diamond chipped and one with a surface reaching fracture
Lot 79
A late Victorian ruby and diamond crescent brooch retailed by Wartski, of typical form, the cushion shape ruby graduated line with old cut diamond duo spacers, estimated total diamond weight 0.75ct, length 5.7cm, gross weight 4.8g. Accompanied by a Wartski of LLandudno fitted case and original receipt dated 1949.Condition report: Overall condition good to fair Scratches, abrasion and discolouration in keeping with wear and age Diamonds fairly well matched and bright, a couple with chips Rubies a medium to deep slight pinkish red with good saturation and typical inclusions, some abrasion visible with magnification With safety chain Possible replacement pin Box in poor condition - misshapen and falling apart
Lot 179
A ruby and diamond dress ring, the oval and circular shape ruby cluster within a square shape panel, with tapered vari-cut diamond shoulders, estimated total diamond weight 0.60ct, ring size L1/2, gross weight 5.7g.Condition report: Overall condition good to fair Scratches, abrasion and discolouration in keeping with wear Rubies a medium pinkish red with good saturation and typical inclusions, some abraded and scratched, visible with magnification Diamonds bright and well matched
Lot 271
A 1960s ladies 9ct gold diamond and ruby Bueche Girod cocktail watch, the circular signed cream dial with baton hour markers, within a 9ct gold case with hinged textured brilliant cut diamond and circular shaped ruby cover, with crossover fancy link bracelet sides and sliding clasp, hallmarks for London, 1963, 17 jewel movement, case diameter 15mm, gross weight 40.8g.
Lot 206
A platinum ruby and diamond cluster ring, the cushion shape ruby within a brilliant cut diamond halo surround and similarly cut diamond shoulders, hallmarks for London, 2007, estimated total diamond weight 0.15ct, ring size K1/2, gross weight 4.8g.Condition report: Overall condition good Scratches and abrasion in keeping with occasional wear Ruby with some small nicks to facet joins, visible only with magnification
Lot 212
A late Victorian 18ct gold ruby and diamond dress ring, the cushion shape ruby line with old cut diamond duo spacers and scrolling shoulders, hallmarks for Birmingham, 1896, ring size Q1/2, gross weight 4.9g.Condition report: Overall condition good to fair Scratches, abrasion and discolouration in keeping with age and wear One diamond chipped Rubies with abrasion to facet edges and joins Rubies a medium to dark very slight pinkish red with good saturation and typical inclusions Ring resized Hallmarks partially indistinct
Lot 175
A 9ct yellow gold ruby ring, set with seven round faceted rubies, to a claw setting and shank, size M, together with a ruby and diamond dress ring, of geometric shape set with five rubies and fourteen round brilliant cut diamonds to a 9ct yellow gold setting and shank, size O and a 9ct yellow gold floral set dress ring, overall approximately 8.5 grams
Lot 245
A gem-set coin necklace, a pair of coin earclips and a coin and diamond-set ringThe Roman coin to a curb-link chain, accented by circular ruby and sapphire cabochon terminals, the earclips and ring of similar design, the coin in the ring between brilliant-cut diamond shoulders, lengths: necklace 41.4cm, earclips 2.6cm, ring size approx. G (sizing spring) (3)
Lot 144
A three-strand cultured pearl collar with a ruby and diamond claspDesigned as three uniform rows of 7.0mm cultured pearls, to a quatrefoil clasp set with brilliant-cut diamonds, pear-shaped rubies and a central 6.0mm cultured pearl accent, diamonds approx. 1.70cts total, accompanied by a quantity of loose cultured pearls, length of shortest strand 37.0cm (2)
Lot 82
A ruby and diamond necklace and pendent earring suiteThe frontispiece of floral and foliate design, set throughout with circular-cut rubies, brilliant and single-cut diamonds, to a circular-cut ruby backchain, the pendent earrings en suite, diamonds approx. 4.40cts total, lengths: necklace 38.2cm, pendent earrings 4.8cm (2)
Lot 118
A gem-set giardinetto broochThe bouquet formed of ruby and sapphire beads, circular-cut emeralds and emerald cabochons, accented by brilliant-cut diamonds, the vase pavé-set throughout with similarly-cut diamonds, the black enamel base accented by step-cut rubies, diamonds approx. 1.95cts total, length 3.1cm
Lot 180
A cultured pearl necklace with a sapphire and diamond claspThe clasp set with a circular-cut sapphire, weighing 23.77 carats, within a brilliant and marquise-cut diamond surround, on a four-row 7.0mm-8.0mm cultured pearl necklace, accompanied by an alternative synthetic ruby and diamond cluster clasp, diamonds approx. 4.55cts total, length of shortest strand 43.5cm, width of sapphire clasp 3.0cm, width of synthetic ruby clasp 2.9cm (2)
Lot 175
A gem-set negligée necklace, by LalaounisThe textured lion head terminals with circular-cut ruby eyes and similarly-cut emerald, sapphire and diamond accents, to a flexible woven chain, the front further accented by a circular-cut emerald plaque, signed Ilias Lalaounis, numbered, length 51.5cm
Lot 157
A gem-set giardinetto brooch/pendant, circa 1950, and a ruby and diamond brooch, circa 19601st: The ropetwist and rose-cut diamond basket issuing a bouquet of flowers set with similarly-cut diamonds and circular-cut emeralds, rubies, sapphires and a seed pearl, 2nd: Of tiered foliate form, set throughout with single-cut diamonds, accented by a central cluster of circular-cut rubies, 1st: composite, lengths: 1st 5.0cm, 2nd 3.2cm (2)
Lot 240
A diamond and ruby ring, mounted by Grima, 1968The old brilliant-cut diamond collet-set within a textured 18 carat yellow gold mount, accented by a double-surround of calibré-cut rubies and rose-cut diamonds, to a geometric band, principal diamond very approx. 1.70cts, one diamond deficient, signed Grima, rubbed maker's mark HJCo., London hallmark, ring size very approx. Q½
Lot 315
A pair of ruby and enamel cufflinks, by Deakin and Francis, 1995Single-sided: Each oval-shaped plaque of blue guilloché enamel latticework, accented by circular-cut rubies, to a T-bar terminal, mounted in 18 carat yellow gold, maker's marks D&F, UK hallmarks, European convention marks, plaque length 1.9cm
Lot 311
A ruby dress set, by VerneyDouble-sided: Each octagonal plaque set with step-cut rubies, via a figure-of-eight link, accompanied by three studs en suite, one stud signed V, rubbed maker's marks, French assay marks, lengths: cufflink plaque 1.2cm, stud plaque 1.0cm, fitted case by Verney, Place Vendôme, Paris (4)
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124080 item(s)/page