This exquisite handmade sparking blue opal Jewish Star of David amulet was created by Nisan and his sons in Jerusalem, Israel. Nisan and his family have been creating fine Jewish jewelry in Jerusalem for more than 3 generations. Each piece is individually handcrafted by the artist and not mass produced. This necklace must be help to be appreciated. The blue simply shimmers in light. The back is pure silver, this is truly an exquisite piece. This is a wonderful gift for anyone who enjoys Jewish art, Jerusalem, or just fine jewelry.