Art Deco diamond ring made of platinum. The ring is set with two old cut diamonds of 0.23 ct each mounted on it, shouldered by three small diamonds of 0.01 cts on each side in a leaf pattern. It makes 8 diamonds ! The top of the ring is openwork with scroll patterns. Art Deco diamond ring, 1930.
Unknown mark inside.
Size of the ring: 54 or 7 (adjustment possible)
Ring head size: 0.4 x 1 cm x 0.4 cm
Estimated diamond clarity : SI1 (graphite inclusions visible through the table)
Size of the main and side diamonds : respectively old cut and 8/8 cut
Estimated weight of the central diamonds : about 0.23 carat each
Total estimated diamond weight: 0.52 carat
Condition: wears of use (polishing is possible on request)
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.
Art Deco round diamond ring in 18 Karat white gold (750) and platinum (850). This Art Deco ring features a circular centerpiece with a brilliant-cut diamond in a beaded setting. The ring showcases geometric lines in beaded white gold forming a stylized flower adorned with 8 rose-cut diamonds. The elevated setting of the central diamond creates a space in the metal, adding an airy quality to the ring. With its geometric lines and openwork motifs, this ring embodies the typical Art Deco style (1920-1935) and reflects the white jewelry trends of the era. Circa 1930, France. This piece is numbered.
Hallmark: Partially faded eagle head (French state hallmark for 18-karat gold) and serial number.
Finger size: 55 EU or 7.25 US.
Setting diameter: 11 mm.
Estimated total diamond weight: 0.13 carat.
Estimated central diamond weight: 0.07 carat.
Edwardian solitaire engagement ring in 18 Karat Rose Gold (750). Antique engagement ring centered with a brilliant-cut diamond of approximately 0.15 carats, held in place by six prongs. The central diamond is enhanced by six rose-cut diamonds set on the shoulders of the ring. Antique engagement ring, from the early 20th century, France.
Eagle head hallmark.
Finger size: 53.5 EU or 6.5 US (resizing possible)
Diamond Characteristics
Shape-cut: round brilliant
Estimated dimensions: 3.47-3.69×2.36 mm
Estimated weight: 0.15 carats
Estimated color: I
Estimated clarity: VS2
Estimated cut: Good
Estimated polish: Good
Estimated symmetry: Good
Estimated fluorescence: Faint
Belle epoque diamond flower ring in 18 karat (750) rose gold and silver. Antique ring in the form of a flowering branch set with fifteen rose-cut diamonds, two of which are larger. Antique naturalist ring, circa 1880.
Owl and swan hallmarks (French State hallmarks for 18-karat gold and silver)
Belle Epoque flower ring in 18 karat (750) rose gold and silver. Delicate ring forming a flowering branch set with thirteen rose-cut diamonds. The rose gold band divides and is set with a rose-cut diamond of approx. 0.10 carat, set by eight claws. Antique ring, Belle Epoque period, circa 1900.
Eagle head hallmark and goldsmith’s hallmark. (Hallmark for French 18k gold)
Finger size: 53 EU or 6.25 US (can be changed)
Estimated total diamond weight: 0.18 carat
Design dimensions: 13 x 16 mm
Inclusions : graphite inclusions inside diamonds visible with the eyes
Condition: scratches from use, oxidation on silver parts
Platinum diamond cluster ring in 18 karat white gold and platinum. In the center, 9 diamonds are set in claws in an openwork radial decoration. Ring from the late Retro period, 60’s – 70’s.
French dog’s head hallmark, eagle’s head hallmark, illegible goldsmith’s hallmark.
Art Deco Jade diamond ring in 14 karat white gold (585). Elegant ring set with an oval cabochon of jade jadeite of a beautiful intense green colour with slightly white veins. The gem is set with four claws and surrounded by twelve single-cut diamonds on a mounting with Art Deco lines. The shoulders are set with four baguette-cut diamonds. Antique ring from the 1930s.
Shell hallmark
Finger size: 50 EU or 5.25 US (can be changed)
Ring head dimensions: 18 mm x 14 mm
Jade dimensions: 13.18 x 8.28 x 3.90 mm
Fancy brown diamond ring. Fancy brown diamond ring: a solitaire diamond fancy cognac ring in platinum. This ring is centered on a magnificent brilliant cut fancy diamond, whose brown color sparkles with orange. The diamond weighs 0.79 carat and is set with 8 claws. Antique setting from early 20th, certainly reassembled later with the diamond.
A certificate was established by the French Laboratory of Gemmology on 26/07/2021, of which here are the details below.
Shape : round – brilliant
Dimensions : 5,93 – 6,04 x 3,60 mm
Mass : 0,79 carat
Color: fancy deep brown, slightly orange
Clarity: SI2
Fluorescence: none
Observations: no trace of treatment intended to modify the color. Additional facets. Witnesses of the shape of the rough.
Guarantee mark dog head for platinum, goldsmith’s mark partially erased.
Finger size: 49.5 EU or 5 US (sizing possible)
Note: The certificate can be provided upon request, it will be sent to the buyer.
Retro diamond tank ring in rose gold 18 karats (750) and platinum (900). Small tank ring centred of two old cut diamonds in a setting in platinum. The plate of the ring forms a knot with geometrical lines. Retro ring from the 1940’s.
Marked with an eagle’s head and the hallmark of the goldsmith Fulchiron H. active in Lyon from 1937.
Finger size: 52 EU or 5.5 US (can be resized)
Size of the knot : 7 x 16 mm
Total estimated weight of the diamonds : 0,05 carat