AN 18K GOLD, SAPPHIRE AND DIAMOND RING. White gold topped centering a sapphire cabochon featured in a single-cut diamond surround articulated with triangular sapphire cabochons and milgrain accents, completed with a yellow gold shank. Sapphire wt.: 2.65 cts. Diamond wt.: 0.40 cts. Size 7 1/2. Estimate $1,000-1,500