Oklahoma Sooners Ivy Necklace Indiana hoosiers, Double layer necklace College Vault Oklahoma Stud & Necklace Set Stone Armory Oklahoma Crystal Necklace Oklahoma Sooners Jewelry Custom College Necklace Gold Silver College Logo Necklace Etsy Stone Armory Oklahoma State University Spirit Necklace Oklahoma State. We are honored to be part of the College Vault program, which allows us to utilize vintage and retired trademarks for participating Universities. Each College Vault piece is thoughtfully produced in small batches to preserve the uniqueness and limited availability of each style. 1960's Vintage OU Logo DETAILS: This is an Officially Licensed Collegiate Product Our College Vault Stud and Necklace Set is gold plated and light weight Studs and necklace charm measure approximately 0. 5" Necklace is adjustable from 15" 17" PRODUCT CARE: To make sure your jewelry stays in beautiful condition, please do the following: Do not spray hairspray or perfume on your jewelry Do not swim or exercise in your jewelry Do not use jewelry cleaner or any kind of chemicals on your jewelry; if a jewelry polishing cloth is not getting the metal clean, use mild hand soap and water, then blot dry with a microfiber towel