Roberto Coin 18k Rose Gold And Mother Of Pearl Ring Sz 6.5 7772685AX65X. This delicate Roberto Coin 18k Rose Gold Cocktail Ring features 2 five-petal mother of pearl (4.75ct tw) flowers with a pink sapphire (0.05ct tw) center. The ring size is 6.5. The Band Width is 3mm. The Total Weight is 5.2g.Pink Sapphire, Mother Of Pearl. The item "Roberto Coin 18k Rose Gold And Mother Of Pearl Ring Sz 6.5 7772685AX65X" is in sale since Thursday, June 18, 2020. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "shopworn" and is located in Cresskill, New Jersey. This item can be shipped worldwide.