Not too small, not too expensive. Half-carat diamonds are just right. To create the perfect 1-2 carat diamond ring, start with the most beautiful 1 / 2 carat diamond. Our artificial intelligence ROSI sorts through all the available 1 / 2 carat diamonds on the market today and picks the most beautiful diamonds that are the best value, balancing more than 20 quality factors. Once you have the best 0.5 carat diamond for you, we’ll create your diamond ring to order in our Los Angeles studio to fit your diamond and your finger like it was made for you (which of course, it is!) Your couture diamond ring is crafted to last for generations.