- 18k white gold genuine 3 stone Oval Brilliant Cut diamond engagement ring. This ring contains one major Oval Brilliant Cut diamond which is set in the center of the ring into 4 prongs, and which has a total combined weight of .55/100-Ct. This diamond is flanked on either side by a smaller genuine Oval Brilliant Cut diamond, which has a weight of 1/4 carat. In all, this ring has a total combined weight of 1.05 carats. These diamonds average F-G in color, and SI in clarity. These diamonds are nicely proportioned and well finished. This ring has an entire weight of 3.5 grams. This ring is a finger size 5 1/4, but it can be reasonably sized at no additional charge. If you need a specific size please make note in the comments section at checkout.