Monture Cartier diamond cocktail ring, French, circa 1950.

Marchak diamond cocktail ring. Set to centre with a round brilliant cut diamond in an open back claw setting with an approximate weight of 1.14 carats, encircled by twenty-four round...

Vintage diamond cocktail ring. Set centrally with thirty three round brilliant cut diamonds in open back grain settings with a combined approximate weight of 2.00 carats, further set...

Diamond cocktail ring. Set with one round old cut diamond in an open back claw setting with an approximate weight of 1.05 carats, further set with one round old cut diamond in an open back claw setting with a weight of 1.00 carats, further adorned with two round star top diamonds in open back grain settings with a combined weight of 0.20 carats. The total approximate diamond weight is 2.25 carats, to an openwork geometric design, featuring curving claws, polished edges and fancy open backholing, flanked by broad raised shoulders which taper through to a solid flat ribbed shank...

Colombian emerald and diamond cocktail ring. Set to centre with an octagonal emerald-cut natural Colombian emerald with minor clarity enha...

Gorgeous antique Monture Cartier cocktail ring. Monture Cartier is a signature hallmark only used on custom commissions from private clients of Cartier. Features an approximately 22.80 carat rectangular cut aquamarine, prong set in 18k yellow gold. Approximately 0.80 carat diamond and 1.20 carat sapphire accents. Featured in Heritage "Spring Fine Jewelry Auction...

Ring in platinum, dog's head hallmark. Oval and domed, openwork, this incredible ring is claw-set with 2 antique and intermediate brilliant- cut diamonds on an entourage of shuttle- cut diamonds. The ring is made of 3 gold threads that meet at the base. Special order handmade by Maison Cartier. Ring signed and presented in its original case from Maison Cartier. Total diamond weight : approximately 7 carats. Height : 21.6mm, Width : 21.1mm, Thickness : 9.2mm, Ring Width at Base : 3.6mm. Total weight of the jewel : approximately 9.7 g. Authentic antique jewel - French work from the 1950s. Our opinion : Splendid and luminous, this retro diamond ring was specially ordered and made to measure from Cartier - Place Vendôme...

Spectacular gems distinguish this magnificent bypass ring by the famed jeweler Cartier. The remarkable 8.26-carat emerald cut sapphire is certified by the American Gemological Labs (...

This statement ring features wonderfully set baguette cut sapphires and diamonds. The main stones are the sapphires, which are a deep, rich blue. They have a combined weight of 1.05 ...