Sterling Silver Phi Mu Lavalier. Approximate size 3cm for 3 Greek Letters. .925 Sterling Silver. The perfect charm for your Phi Mu necklace. We offer a coordinating bracelet and earrings to complete the look. Phi Mu Jewelry makes great Phi Mu Gifts. Don't forget to create a wish list. An Phi Mu gift wish list, can keep track of all the Phi Mu merchandise you would like purchase in the future whether you are shopping for yourself, a daughter or a fellow sister.