Jeff Cooper Three-Stone Rings

Absolutely breathtaking vintage Cambodian sapphire and diamond ring. The brilliant blue stone against the bright white diamonds really catches the vi...

A stunning, fine and impressive vintage 3.53 carat diamond and platinum trilogy ring; part of our diverse engagement ring collections. This stunning 1950s vintage engagement ring ha...

Dover Jewelry Present this Stunning Square Colombian Emerald Diamonds handcrafted is solid platinum. Displaying vibrancy and elegance, it is centered with 1 genuine square cut Emerald extremely fine in color and clarity, weighing approx. 5.81carats, measuring 10.78mm X 10.23mm X 8.53mm, GIA certified set in claw prongs. This rare Colombian emerald Flanked in between 2 genuine triangular cut Diamonds approx. 1.90 carats, F-G color, VS1 clarity, Set in prong. This classic Ring is in New condition. Weighs: 8.3 Grams Measures: 11mm x 19mm, 9mm high Accompanied by its original GIA Gem...

Vintage diamond ring featuring three diamonds flanked with smaller diamonds weighing approximately 2 carats, crafted in platinum.

Simply Beautiful! A Vintage 3 Stone Baguette Diamond Platinum Trilogy Band Ring. Symbolizing the past, present, and future. Hand set with .30tcw Baguette Diamonds in Hand-crafted Pla...

A magnificent, stunning, fine and impressive vintage 3.40 carat diamond and platinum trilogy ring; part of our diverse vintage engagement rings collection. This magnificent, fine and impressive vintage three stone ring has been crafted in platinum. The pierced decorated setting is ornamented with a feature 1.87ct transitional modern brilliant round cut diamond, claw set to the centre of the trilogy arrangement. The central diamond is flanked on either side by a claw set 0.77ct and a 0.76ct transitional modern brilliant round cut diamond, completing the design. The pierced decorated, elevated ring shoulders integrate with the main setting and blend seamlessly with the plain hallmarked ring shank. This interior of the shank is hallmarked with the platinum mark (PLAT). This vintage three stone engagement...

Vintage Emerald & Diamond Trilogy Ring 18ct Gold & Platinum Stamped Circa 1970s This stunning trilogy ring from the 1970s is a true vintage beauty. The ring is crafted in...

Vintage Emerald & Diamond Trilogy Ring 18ct Gold & Platinum Stamped Circa 1920s This stunning trilogy ring from the 1920s is a true vintage beauty. The ring is crafted in 18ct ye...

Vintage diamond ring featuring three diamonds flanked with smaller diamonds weighing approximately 2 carats, crafted in platinum.

Classic trilogy ring with central cushion cut diamond and 2 Old Euro cut diamonds on the sides, estimated 0.80ct total. Set in platinum from the 1940's.

Colombian Emerald GIA and Baguette Diamond 5 Stone Platinum Ring This well crafted platinum 5 stone emerald and diamond ring is set with a gorg...

A stunning, fine and impressive contemporary platinum trilogy ring set with 3.39 carats of vintage (circa 1990) diamonds; part of our diverse dia...

A stunning, fine and impressive vintage 4.49 carat diamond and platinum trilogy ring; part of our diverse collection of diamond engagement rings. This stunning, fine and impressive ...

The three gorgeous diamonds in this ring are bright and have a wonderful sparkle. The central stone measures 1.11ct, and the two outer stones measure 60pts and 65pts. All diamonds ar...

Three round brilliant cut diamonds totaling 1.32ctw form a bright central row between sweeping platinum curves in this vintage bypass ring. Sculpted prongs secure the round stones, w...