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
Art Deco diamond ring in 14-karat gold (585) and platinum. Hexagonal Art Deco ring set with three old mine cut diamonds in a bezel setting. The ring is elegantly decorated with geometric lines and openwork motifs, typical of the Art Deco period. Antique ring, Italy, circa 1925.
Shell hallmark (French State hallmark for 14-karat gold)
Finger size: 52 EU or 6 US (resizeable)
Dimensions of the setting: 18 x 10 mm
Estimated weight of the central diamonds: 0.15 ct
Three-strand pearl necklace with 18-karat white gold and diamond clasp (750 hallmarked). This vintage “American-style” necklace features three strands of cascading white cultured pearls. The necklace is adorned with an 18-karat white gold clasp in the shape of a knot, fully set with round brilliant-cut, baguette-cut, and 8/8-cut diamonds (33 diamonds in total). The main diamond weighs 0.10 carats. Each strand consists of 63, 69, and 77 pearls, respectively. Dating back to the 1970s, made in France.
Hallmarks: Eagle’s head (French state hallmark for 18-karat gold), 750 (indicating 18-karat gold), and maker’s mark.
Length: 48.5 cm
Clasp dimensions: 16 x 20 mm
Estimated total diamond weight: 0.61 carat
Pearl diameters: 5 mm (minimum) to 8.5 mm (maximum)
Note: The clasp features an 18-karat white gold safety chain. The necklace has been restrung.
Condition: Slight damage to one pearl near the clasp.
Solitaire engagement ring in 18-karat white gold (750) and platinum. This ring features a brilliant-cut diamond weighing 0.10 carats, secured by eight prongs. The setting is adorned with a decorative pattern of radiating points around the diamond. This Retro ring hails from around 1940 and was crafted in Lyon, France.
Eagle’s head and dog’s head, along with the maker’s mark of Alphonse Moussière, an active jeweler in Lyon since 1902.
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.
Art Deco style diamond ring in 18 karat white gold (750) The ring is designed in the shape of an elongated diamond, featuring a circular openwork motif at the center, set with a brilliant-cut diamond weighing 0.16 carats. The central diamond is surrounded by two half-circles of 12 brilliant-cut diamonds each. The shoulders are adorned with chevron motifs set with eighteen brilliant-cut diamonds. A vintage ring, in the Art Deco style, dating from the late 20th Century. A beautiful model for an engagement ring.
750 hallmark, anchor hallmark for Birmingham, XM hallmark for the silversmith, AU mark.
Finger size: 52 EU or 6 US (resizing possible)
Weight of the central diamond: 0.16 carats
Estimated total diamond weight: 0.28 carats
Condition: Signs of wear on the inside of the ring
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.
Tank coral diamond ring in 18 karat (750) white gold and platinum. The ring is centred on an orange coral pearl surrounded by two rolls of gold and framed by two lines of eight rose-cut diamonds (sixteen in all). The jewellery features the geometric lines typical of tank jewellery. Tank ring, circa 1940.
Hallmarked owl and mascaron
Finger size: 55 EU or 7.25 US
Ring head dimensions: 12 x 20 mm Pearl diameter: 8 mm
Navette diamond ring in 18 karat (750) white gold. The ring is set with a line of five brilliant-cut diamonds, surrounded by twelve brilliant-cut diamonds, set in a leaf motif. The bezel is quite high. Marquise ring from the 1970s.
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
Peridot and amethyst trilogy ring in 18 karat (750) white gold. Second-hand ring set with two troïda-cut amethysts, supporting a large fancy-cut peridot. The peridot is a beautiful olive-green colour tending towards yellow, while the amethysts are a beautiful intense violet. Vintage ring, circa 1990, France
Eagle head hallmark and illegible goldsmith’s hallmark.
Finger size: 54 EU or 6.75 US (can be resized)
Estimated peridot weight: 4.66 carats
Estimated weight of the amethysts: 0.92 carats each
Condition: scratches from use and scratches inside the ring