The modern round diamond is the culmination of centuries of the art of the cutting, sparkling with light, brilliance, and scintillation. A two carat round diamond ring is dazzling in sunlight, throwing reflections around the room. The best 2 carat round diamond ring is one that is made for you, with your choice of diamond, ring style, and precious metal. For the most beautiful two-carat round diamond, look for an excellent or very good cut grade on its GIA grading report. ROSI, our innovative artificial intelligence engine powered by IBM’s Watson, will sort though all the two carat round diamonds available on the market to find the best combination of beauty and value, weighing more than 20 quality factors. Our diamond rings are all made to order one at a time in California with recycled gold or platinum for the best possible quality.