Costar is one of the leading manufacturers & distributor of Fine Diamond Jewelry to established Fine Jewelry Retailers across the United States since 1988. COSTAR bring you the latest in Bridal & Fashion Diamond Jewelry. Quality, style, superior craftsmanship, and value are at the heart of all Costar products and our attitude to your success leads to an everlasting partnership.

Costar is built on a “Customer Success” philosophy. We are very excited to work with our current and prospective customers to create product lines that set them up for success. Costar carries more than 1000 Bridal & Wedding Band styles and over 500 Diamond Fashion designs in stock for overnight delivery.

Our Mission

To provide the highest quality Bridal and Diamond Fashion product and Customer Service Experience to our business partners, to assist them in building traffic in their stores, to help maximize inventory turn, to increase and maintain margin integrity, and to provide them with Couture Quality Diamond Jewelry at Main Street prices.