Talk about a necklace with choice. Features a solid ‘coin’ Mother of Pearl and on the other side Abalone Shell. Swap it out by opening necklace at infinity clasp and swap in the CZ Coin. Necklace can be adjusted from 30” to 18” by removing a section at the infinity clasps. The coins measure at 1”. The coins are Silver plated, then Rhodium plated but the necklace and Coin Keeper are bother Sterling Silver. As the name states there is a small Diamond in the Keeper.