Tank ring with diamonds in 18-karat white gold (750) and platinum. Tank ring set with a synthetic blue spinel of square cut. The spinel faces two lines of four old-cut diamonds (eight diamonds in total) set on a raised roll. The ring has harmonious volumes, sometimes rounded, sometimes geometric, typical of this period. Tank ring, circa 1940.
Owl hallmark (French state hallmark for 18-karat gold)
Finger size: 52 EU or 6 US (resizeable)
Estimated weight of diamonds: 0.46 ct
Estimated weight of synthetic spinel: 2.5 ct
Modernist triplets opals diamond necklace in 18-karat yellow gold (750 thousandths). Original necklace formed by a rigid hoop holding a pendant composed of articulated circular gold elements, adorned with six brilliant-cut diamonds, and three oval elements set with opal triplets. This jewel from the 1970s is reminiscent of the necklaces created by Jean Vendôme during that time. A piece with a bold style.
750 hallmark on the clasp
Pendant dimensions: 47 x 25 mm
Note: The necklace and the pendant are inseparable
Estimated weight of diamonds: 0.18 carat
Weight: 20.61 gr
Learn more about opal triplets: It is a manufactured stone, consisting of three layers, including a thin layer of opal sandwiched between a transparent element on top (glass, resin) and a dark element below (onyx, hard stone, resin). This manufactured stone enhances the play of light in the opal.
Art Deco cluster opal ring in platinum (950). This antique cluster ring features a central cabochon-cut opal set in a close setting, surrounded by twelve old-cut diamonds. The opal shows vibrant play-of-color with shades of violet, blue, and green, accented by hints of orange. The ring’s gallery is delicately detailed with scrollwork. This Art Deco period ring dates to circa 1930 and originates from France.
Hallmarks: Dog’s head (french hallmark for platinum) and maker’s mark.
Ring Size: 51 EU or 5.75 US (Resizable).
Top dimensions: 18 x 14 mm.
Opal weight: 1.03 carats.
Estimated total diamond weight: 0.48 carats.
Condition: surface abrasions, signs of wear.
Weight: 8.18 gr
Gemology and beliefs: Opals come in various types, with noble opals being the kind that exhibits play-of-color. This captivating effect is caused by tiny, uniformly sized spheres of silica. When light hits these spheres and is refracted, it produces a dazzling display of colors on the opal’s surface. In contrast, common opals lack this play-of-color, as their spheres are disordered and of varying sizes, giving them a milky appearance. Opals have been associated with the power of invisibility in folklore, earning them the title “Patronus forum” (patron of thieves) during the late Middle Ages.
Turquoise and diamond brooch in 18 karat (750) gold and platinum. Antique brooch set with three turquoise cabochons linked by two platinum scrolls each set with 13 rose-cut diamonds (26 in total). Art Deco brooch, circa 1925, France.
Partially inscribed eagle head hallmark (French state hallmark for 18 karat gold) and goldsmith’s hallmark.
Dimensions: 11 x 46 mm
Estimated diamond weight: 0.20 carat
Diameter of the central turquoise: 7 mm
Note: the fastening system works
Condition: scratches from use
Art Deco onyx jabot pin in platinum. Pin set with two cabochon-cut onyxes surrounded by 30 rose-cut diamonds. The jewel adopts a geometrical shape and colors typical of the Art Deco period. French Art Deco jabot pin, circa 1930.
Dog head hallmark
Total dimensions: 98 mm x 15 mm Dimensions of one design: 15 mm x 26 mm
Estimated diamond weight : 0,15 carat
Condition : fine traces of glue below onyx, scratches from use
Onyx Art Deco style earrings in white gold 18 karats (750). Pair of long earrings, each of which is decorated with a large onyx drop topped by a brilliant-cut diamond and an Art Deco motif in white gold set with four diamonds. Pair of earrings, French, in the style of Art Deco jewelry.
Austrian poppy flower brooch in 14 karat white gold. Retro brooch forming a poppy with pink agate petals, tinted. The heart of the flower is made of onyx centered with an old cut diamond. The leaves are finely executed in nephrite jade. The agate, onyx and nephrite have been carved by hand. The white gold stem is set with five rose-cut diamonds. Austrian vintage jewel of the 1940s/1950s, Vienna, signed R.T.
Austrian hallmark for 14 karat gold, mark “585”, R.T. goldsmith’s hallmark
This work is similar to the Austrian Hugler’s House of the same period.
Dimensions: 47 mm x 21 mm
Estimated diamond weight: 0.05 carat
Note: the clasp and its security are working Condition : scratches from use
Art Deco Egyptomania bracelet in 18 karats white gold. This rare bangle bracelet is adorned with a large carnelian cabochon in the center, held on each side by a yellow gold palmette and enameled in black. The palmettes are set with eight rose-cut diamonds in a white gold beaded setting. The palmette motif is emblematic of the Egyptomania period of Art Deco. Bracelet of the 1930s, France.
Eagle head hallmark, LP goldsmith hallmark (maker for Cartier Paris), illegible signature.
Interior dimensions : 55 mm x 65 mm
Estimated weight of the carnelian : 18.64 carats
Estimated weight of the diamonds : 0.10 carat
Condition: scratches from use, slight deformation.
Diamond and tourmaline signet ring in 18k white gold. In the center, an oval green tourmaline, also called verdelite, framed by two European old cut diamonds. The three gems are set in a large ring with geometric lines, displaying modernist lines. French vintage signet ring from the 70s.
Owl hallmark
Finger size: 50 EU or 5 US (sizing possible)
Ring head size : 0,7 cm x 1,7 cm
Estimated weight of the tourmaline : 0,75 carat
Estimated weight of the diamonds : 0.17 carat each ; total 0.34 carat
Victorian agate cameo pendant in yellow gold 18 karats decorated with the profile of the goddess Flora, wearing flowers in her hair. The agate has three layers: gray for the background, white for the profile, brown for the flowers in the hair. The cameo is set with fleur-de-lis claws. Four old- European cut diamonds, as well as eight rubies (including a red stone) frame the cameo on a curved black enamel band. Jewel of the second half of the 19th century, French Napoleon III period or Victorian period.
Two owl hallmarks.
Height : 5 cm
Width : 3 cm
Condition : small accident on the upper flower button of the headdress, a very slight jump of enamel in the thickness on the left part. A ruby that has been replaced by a red stone (top right).
Note: this jewel has been transformed, the pendant was originally a brooch.
Weight of the stones: the 4 diamonds weigh about 0.32 carat in total; the 7 rubies weigh about 0.35 carat in total.