Ryan Jonathan 18K Gold Emerald Cut Blue Sapphire and Triangle Trillion Diamond Cocktail Ring (3/4 cttw, F-G, SI1) Includes a Jewelry Certificate of Authenticity issued by DivaDiamonds. Includes a jewelry polishing cloth and jewelry box. We certify that our diamonds are conflict free diamonds. Listed total diamond carat weight is approximate. May vary up to .05 carats. Proudly made in the USA.