Browse our sparkling selection of 2.5 Carat loose diamonds and build a gorgeous custom pair of stud earrings today. Once you find the best stone for you, choose from one of our handmade ring settings and metal choices, including platinum and rose gold. All of our responsibly sourced diamonds are certified with their own GIA or AGSL grading report. If you run into any questions during your purchase, you can consult our detailed diamond education or get expert advice from our virtual gemologist. Try your diamond or handcrafted wedding ring before you buy it with Ritani's free in-store preview program, available at any of our authorized local jewelers.