Antique 18k yellow gold genuine Sapphire & Diamond three stone ring with 6 prong Platinum heads. This ring contains one major genuine .70 carat Sapphire, which has vivid medium to dark blue color and very good clarity. This gemstone is enhanced by two genuine Old Mine Cut Diamonds, which have a total combined weight of .67 cttw. These diamonds average H in color, and SI2 in clarity. This ring has an entire weight of 3.0 grams. This ring is a finger size 6, but it can be reasonably sized. If you require a specific size please make note in the comments section at checkout. This ring would make a gorgeous engagement ring!