18K YELLOW GOLD NATURAL SAPPHIRE NECKLACE: 43 Round Brilliant Cut Sapphires Adorn this 18'', 18K Yellow Gold Necklace. The sapphires are multicolored and range from VS-SI in clarity with 30CTW. Weight 14.3 grams. Sold with current joint Atlanta Gemological GIA graduate's appraisals for $8350.