Shop our selection of Cushion Cut, 1.7 Carat diamonds to build a one-of-a-kind engagement ring. All Ritani diamonds have been evaluated by the GIA or AGSL, reputable third-party agencies that provide their own detailed grading reports. After selecting your stone, browse our wide range of engagement ring metals and styles, from Art Deco-inspired diamond halos to timeless solitaire settings. In case you need assistance during your purchase, our stellar customer service team and non-commissioned virtual gemologist service are available to answer any questions. After you choose your loose stone or engagement ring, try Ritani's free in-store preview program and see it in person at one of our local jewelry store partners (US only).