375 Yellow Gold Cultured Tahitian Pearl Round 10- 10.5 Cabachon, Russian Diopside Size W 9K Yellow Gold Cultured Tahitian Pearl Round 7.50ct, Russian Diopside 10.00ct Ring Size W( 20.76mm) Hallmarked 9K/375 Yellow Gold. The Ring Size- W. Inside Diameter-20.76mm. Metal weight- 3.38 g. Total No os Gemstones- 17. Total Gemstones Weight- 10.00 ct. Cultured Thaitian Pearl Round 10- 10.5 Cabochon. Weight- 7.5 ct Russian Diopside Pear 4x3 faceted- 8 stones: 1.5 ct. Russian Diopside Marquee 4x2 faceted- 8 stones: 1.0 ct.