Fine Jewelry, Watches & Accessories. We offer great customer service, some of the highest-quality certified diamonds, engagement rings, and fine jewelry available at incredible prices. We offer secure purchase online and in over 100 locations in the Caribbean and Latin America. You'll also find, great prices jewelry caribean diamonds cancun cozumel cabo san lucas st.maarten st.croix aruba st.thomas las vegas antigua 18k gold bracelets carat cozumel mexico diamond earring emerald fine jewelry. Rings ruby apphire silver, wedding ring spearls Diamonds International was established nearly two decades ago. What began as one store in St. Thomas has now blossomed into more than 100 locations. Diamonds International is now one of the largest jewelry retailers in the world. We have more locations in the Caribbean than any other fine jeweler, but our network stretches from the company's New York City headquarters into Mexico and as far as Alaska. The founders of Diamonds International are both graduates of the Gemological Institute of America. They personally oversee every aspect of our daily operations, and source stones from the world's largest diamond mines, allowing us to offer beautiful jewelry at the best possible value directly to the public.