Lumera Diamonds is an online diamond broker that is based in St. Louis. The website has a highly customized design which is highlighted with their online store. Customers of Lumera have access to over 50,000 diamonds, all of which are tied into the website through a database of available diamonds. The use of SEO (Search Engine Optimization) on this site has allowed it to climb near the top of the Google rankings for its targeted keywords. This provides them with more exposure to the business; and in return, more sales.