For lasting quality and great value, create your own 1/2 carat diamond engagement ring by selecting a loose diamond and commissioning a setting that perfectly suits your style. At RockHer, we make it easy to find a beautiful diamond that’s also a great value with ROSI, our diamond-picking algorithm that quickly sorts through all the available half-carat diamonds, weighing more than 20 quality factors. Then we’ll craft your half carat diamond engagement ring from scratch in our California studio. Making rings to order, one by one, means we can carefully craft every detail to last. And then we stand behind the quality with a lifetime warranty.