C. 2020. There's an elevated whimsy infused into this Estate collection cocktail ring, which sweeps across the finger, elongated at 1" wide.… C. 2020. There's an elevated whimsy infused into this Estate collection cocktail ring, which sweeps across the finger, elongated at 1" wide. At the center, a striking 1.10 carat oval sapphire beckons a second look with its rich indigo-blue sparkle, as dazzling 1.20 ct. t.w. diamonds dance along the artful curves. Finely crafted in polished platinum and 18kt yellow gold. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.