Use our diamond education to learn about Cushion Cut, F Color loose diamonds and build the perfect custom ring she'll marvel at forever. When you buy from us, you can be guaranteed your diamond was responsibly sourced and certified by either the GIA or AGSL. After you select the stone that's right for you, complete your ring with a style from our diverse selection of ring settings, from simple solitaires to sparkling Art Deco-inspired halos. Our excellent customer service team and expert gemologist service will provide any assistance or guidance you need during the selection process. When you've chosen your diamond or wedding ring, you can select to preview it in-person, for free, at one of our US based, local partner jewelers, from San Jose, CA to New York City.