In a world of classic 1 carat diamond engagement rings, a 1 1/2 carat diamond ring stands out from the crowd: bigger, brighter, more brilliant, with more sparkle. A1 carat diamond ring is expected, but a 1 1/2 carat diamond is extraordinary. The best way to buy a carat and a half diamond ring is to buy the diamond loose online and have the ring made to order to get the best value and selection. RockHer’s artificial intelligence shopping assistant ROSI will evaluate all the 1.50 carat diamonds currently available in the market and find you the best balance of quality and value. Then our artisans in California will craft you a fine quality engagement ring that fits you and your diamond perfectly. It’s the modern way to create an heirloom 1 1/2 carat diamond ring that will last for generations.