Of course you play tennis. Prep your looks with lab grown sapphires. These gemstones have the same chemical and physical properties as natural ones—and sparkle just as nicely. Handcrafted in sterling silver featuring lab grown sapphires. To put on the necklace, place the safety handles in your right hand and the inner tongue in your left, ensuring the diamond side faces out. Insert the tongue into the clasp until you hear a "click." Then, clip the safety arms down on both sides of the clasp to secure the necklace. To take it off, unclip and pull the two horizontal safety arms away from the sides of the clasp. Then, press the thin vertical button to release the inner tongue.