25 Carat Star Sapphire Diamond Platinum Ring

Platinum ring, with approx. 8 carat star sapphire cabochon, with approx. 0.40ctw in side diamonds. Ring size - 4, ring top is 11mm wide. Marked with partially polished off platinum ...

Platinum cocktail ring, with center 1.44ct sapphire, surrounded with 0.86ctw in diamonds. Ring size - 6.25, ring top - 18mm x 14mm. Marked: pt900, D0.86, S1.44. Weight - 8.9 grams.

Platinum ring, with center approx. 11.36ct sapphire cabochon, surrounded with approx. 0.70ctw H/VS-Si diamonds. Ring size 6.25 (EU size 52). Top is 18mm wide. Has punchmarks on the s...

Platinum sapphire diamond ring, emerald cut sapphire weighing 4.92 (known weight) two tappered baguette weight 0.50 cts, GH VS, stamps 35219 PLAT, ri...

Vintage Platinum Star Sapphire Diamond Ring. Natural Star Sapphire Cabochon is 14.0mm x 12.5mm x 10.0mm, four prong set. The star has an excellent presen...

Platinum ring setting features one Oval Cabochon Cut Natural Blue Star Sapphire for a total weight of 8.55cts accented by approximately 0.40cts ...

A stunning vintage French 2.25 carat unheated blue sapphire and 0.78 carat diamond, platinum cluster ring; part of our diverse vintage jewelry collections. This stunning, fine and impressive unheated sapphire ring has been crafted in platinum. The oval shaped, cluster design is ornamented with a feature 2.25Ct cushion cut blue sapphire, ten claw set to the center. The central sapphire is encircled by ten pavé set Old European round cut diamonds. The pierced decorated, elevated ring shoulders integrate with the main setting and blend seamlessly with the plain ring shank. This vintage 1940s dress ring is hallmarked to the outer surface of the ring with the French maker's mark and the French mark for platinum (dog's head). The vintage sapphire cluster ring...

This distinguished ring features a 30.14 carat cabochon star sapphire with a lovely velvety blue hue. The star sapphire gives life to this extravagant ring...