French Sapphire, Diamond and White Gold Ring, Circa 1990

An Art Deco sapphire and diamond oval plaque ring, with an Edwardian-cut diamond, in the centre of a decorative openwork cluster of round brilliant and Edwardian-cut diamonds, in mil...

A ruby and diamond early Art Deco plaque ring, with five principle old-cut diamonds, set horizontally, in platinum rub over settings, with a surround of calibré rubies, in a rectangu...

Mauboussin diamond and sapphire ring. Set to centre with an octagonal emerald-cut diamond, G colour, SI1 clarity, with a weight of 2.01 carats in an open back claw setting, flanked b...

A stunning antique French 0.59 carat blue sapphire and 0.65 carat diamond, 18 karat white gold and platinum set marquise ring; part of our diverse antique jewelry collections. This stunning, fine and impressive marquise sapphire and diamond ring has been crafted in 18k white gold with a platinum setting. The stepped, marquise shaped platinum setting displays a feature 0.59Ct marquise cut blue sapphire, collet set to the centre of the pierced decorated design. The stepped setting is further embellished with a total of fifty-six pavé set diamonds in a combination of Dutch and Old European cuts. The bifurcated ring shoulders are each ornamented with a collet set Old European round cut diamond and join with the hallmarked ring shank. The ring is hallmarked to the outer surface of the shank with the French hallmarks for 18 ct gold (eagle's head) and platinum (dog's head). This stunning antique French marquise ring is supplied with an independent diamond grading report card. Images do not always reflect the true color and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual color and showcases each stone. Condition This antique marquise ring...