C. 2020. There's an elevated whimsy infused into this Estate collection cocktail ring, which sweeps across the finger, elongated at 1" … 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.