Manufactured exclusively for us in New York City and Los Angeles by some of the finest jewelers. The Gleim Collection uses only the finest colored gems and diamonds, set in platinum and gold, to create jewelry that is timeless and classic. The utmost care goes into each piece of jewelry; the diamonds are matched with making sure that each crown facet line up with one another. This is just one of the many meticulous details making this collection an instant heirloom.