Marcus & Co. Art Nouveau brooch, “Tibula” shaped 18k yellow gold brooch set with three natural pearls, the natural center button pearl approx. 10 mm in diameter (G.I.A. certificate, 3 natural freshwater pearls, weight 24.90 grams, measurement range from 5.46 to 12.26mm), 16 sugarloaf cabochon sapphires, the two large and high dome middle sapphires with a purple hue, 20 pave set round diamonds all surrounded with clear plique-a-jour further trapped with platinum flakes, signed c. 1897
French Art Deco “Heptagon” clip / brooch set with a large fancy cut madeira citrine and 8 baguette madeira citrines all set in 18K gold, signed, c. 1935
French Art Deco “Heptagon” clip / brooch set with a large fancy cut madeira citrine and 8 baguette madeira citrines all set in 18K gold, signed GA in a diamond French touch mark, French Eagle’s head mark for 18k gold, c. 1935
French 19th Century “Gothic Revival” ring set with a very fine square step cut emerald (approx. 2 carats TW) and two European rose cut diamonds (approx. 2 carats TW) all in an openwork 18K yellow gold mount further set with 12 old mine cut diamonds, signed, c.1885
William Ruser, Beverly Hills “Lotus Blossom” ring set with three large natural Baroque pearls and a yellow diamond in the center (approx. .50 carats by calculation) in an 18k gold highly textured structural gold mount, signed: R (for Ruser), 18k, c.1960
Jean Claude Champagnat, Paris (1923-1980) for the famous Couturier, Christian Dior (1905-1957) “Exotic Flower Blossom” ring in 18K gold with flower blossoms gemset with 3 round rose-cut rubies (approx. 2 carats TW) and 15 marquise shaped Kunzite flower petals, signed, c. 1950’s
Moshe Oved (1883-1958) “Marabou Stork” ring, hand tooled lost wax 18K gold casting in full dimension as a complete biomorphic form of the bird and set with sapphire eyes, c.1940
Burma, “Naga” dragon ring, high carat gold (22K +) enameled and set with 27 cabochons consisting of rubies, sapphires, emeralds, diamonds and other precious stones, second half 18th Century
These impressive and rare dragon rings have been a feature of all the great ring collections, including the Harari, Guilhou, Spitzer, Franks, and Koch collections. They are known as ‘Naga rings’ because they are thought to represent the naga dragon which is thought to have sheltered the Buddha during a prolonged period of meditation. Chadour suggests that these rings were made for Royalty. The extravagant design certainly re-enforces the idea that they were made for lavish ceremonial use. Another example is in the British Museum.
Lacloche Freres, Paris (attr.) Tutti Frutti “Bouquet of Flowers” ring set with two Mughal carved sapphire flower/leaf shaped jewels and further set with a matching cabochon sapphire, 11 baguette diamonds, 22 round cut diamonds and two golden hued pearls all in a very intricately detailed platinum mount, c.1920’s
Imperial topaz (26 carats) solitaire ring set in platinum with two elongated baguette diamonds, signed: L and M French maker’s mark in a diamond poincon, French Dog’s head assay mark for platinum, c.1950
French Art Deco Interlocking ring, Invisibly set rectangular sapphires (10 count, approx. 2.50 carats TW), pave diamonds (approx. 2.50 carats TW) all set in a platinum mount, c. 1935
French 19th Century light yellow natural color diamond (approx. 2.20 carats TW, G.I.A certificate, 8.05 x 6.90 x 5.05mm, natural diamond) ring set in a fancy 18K yellow gold mounting, signed, numbered 3056, c. 1890
American Art Deco ring (likely by Louis C. Tiffany for Tiffany & Co.) set with a large blue zircon (approx. 64 carats by calculation, 20mm x 20mm x 19mm) set in a fancy platinum mount further set with 14 round cut diamonds, four bullet shaped gold/orange citrines and two kite shaped gold/orange citrines, marked: very deeply stamped letters as a maker’s mark on the inside of the shank, c. 1930
***Top quality gem blue zircons over 10 carats trade at a minimum price of $200 per carat and go up from there depending on the size of the stone and the quality of the color. Blue zircon, the most popular color, is produced by heat treatment of brown zircon. But not all brown zircon will turn blue when heated; only some zircon has the right physical structure for this to occur. This is why most blue zircon comes from certain sources in Cambodia or Burma. Blue zircon is a reasonably hard gem with a Mohs hardness of about 7 to 7.5. Blue zircon has some unique properties that make it very popular with gemstone aficionados. Not only does zircon have outstanding brilliance, but it also has very strong dispersion or fire, the tendency to split white light into the spectral colors. Zircon also has very pronounced birefringence or double refraction, with a wide variance between the two refractive indices. This can be often be observed with the naked eye when you look down through the table of a cut zircon; you will observe facet doubling that makes the facet edges appear blurred.
Art Deco Emerald step cut diamond solitaire ring, center cut emerald diamond (3 carats 10.30 x 7.20 x 4.3mm, Clarity VS-1, Color I/J, UGL certificate), with surrounding round brilliant cut diamonds, French cut natural sapphires (approx. 0.60 carats), all set in platinum mounting, c. 1930’s
Edwardian Sugarloaf Fire Opal (approx. 4 carats TW) ring with 32 diamonds set in a milligrain platinum topped 18K yellow gold mounting, marked, c. 1910
Andrew Grima “Comet” ring, Asymmetric cut citrine mounted in 18K textured yellow gold, five diamonds, signed: GRIMA, 0.750 (in a rectangle cartouche, AG Limited (in a rectangular cartouche), Crown, 18, Lion’s Head (for London), q (date mark for 1971), 1971
French 1950’s “Turban Style” ring, large pearl (G.I.A. certificate, Weight of the pearl: 16 grams, bead cultured pearl, saltwater, drop shape, white color, “Orient” overtone) and fancy diamond ring set with two triangle diamonds (approx. 2 carats TW) and 48 round diamonds (approx. 8 carats TW) all set in platinum, signed
Chanel, Paris “Camellia” 18k yellow gold articulated blossom ring set with 75 round full-cut white diamonds (approx. 1.50 carats TW) and 101 round full-cut yellow diamonds (approx. 1.00 carat TW) and 94 round full-cut demantoid garnets (approx. 1.00 carat TW) all in 24 heart shaped hinged and moveable flower petals with a central cluster of 7 round full-cut diamonds, signed: Chanel in a rectangle, 750 in a cartouche, size: 7 1/4, c. 1980’s
French Art Deco Diamond and sapphire ring, Round rose cut diamond (approx. 3 carats) set with sapphires (approx. 1.5 carats TW) in a platinum mount, signed, c. 1930
French Art Deco ring set with a fine jadeite oval cabochon, faceted and caliber cut onyx, and further set with 18 round diamonds and six square French-cut diamonds all set in a millegrain platinum mount, c. 1920’s
Italian long chain with 18k gold hammered links and set with 9 count gem quality naturally tumbled turquoise beads, marked: 20 (maker’s assigned number, VR for Verona, 750 for 18k gold, c. 1970’s
Length: 50 inches Width of the turquoise beads: 3/8 of an inch
Neil Lane heart shaped natural sapphire solitaire ring, 3.12 carats (GIA certificate, 8.56 x 9.62 x 5.13mm, no heat) with a diamond pave set platinum mounting, signed, c. 2005
American Art Nouveau “Green Heart” ring set with a heart shaped peridot (approx.15 carats) surrounded with 20 round cut diamonds (approx. 3 ½ carats TW) all set in an 18K gold mounting, c.1900
Margaret De Patta (1903-1964) Modernist asymmetric sterling ring set with twenty square cut sapphires (approx. 9 carats TW ), signed: DePatta, Chevron mark of MDP, Sterling, c.1947
American “Retro Ruby” ring set with three square cut natural pink toned rubies (approx. 2 carats TW) in a 14K mounting, marked: RKV maker’s mark, 14K, inscribed with the initials H.R.P.to S.M.P., c.1940
Marchesini, Rome (attr.) Etruscan Revival mid-19th Century elaborate jeweled “Maltese Cross” 18k gold ring set with four rectangular step-cut sapphires and one round-cut sapphire and eight pearls in a highly detailed setting with granulation and twisted gold wire designs, c.1860
Guebelin Switzerland “Half moon” ring in 18K white brushed gold set with a large cabochon oval moonstone, two crescent moon shaped inset lapis lazuli stones and further set with two tapered baguette diamonds on either side, signed with the Guebelin cipher, 750 and Swiss, c. 1950’s
Edwardian cluster ring set with a natural Saltwater pinkish brown pearl (G.I.A. certificate) and 28 diamonds (approx. 7 carats TW) set within a silver topped gold mount, c. 1890’s
Russian “Crest” ring, double headed eagle on a blue enamel background set with 17 round cut diamonds and multiple single cut diamonds all in a 14K gold mount (56 zolotniks), signed, c. 1905
European Art Deco “Chevron” design ring, 18K gold set with 24 square cut invisibly set rubies (approx. 6 carats TW) in a pyramid form, marked, c. 1940’s
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