Shop our certified Emerald Cut, 1.5 Carat loose diamonds to design your own custom engagement ring. 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 products come with their own certification reports from the GIA or AGSL, the most reputable gemstone grading agencies. You can contact our customer service team or free virtual gemologist service for expert advice at any point in the buying process. When the selection process is complete, you can preview your diamond or custom bridal jewelry for free at any of our authorized local jewelers.