Precieux Gem Puka Opal Amazonite Necklace Puka is the Hawaiian word for "hole" and refers to the naturally occurring hole in the middle of these rounded and worn shell fragments. Précieux Gem jewellry is made from rough stones and handcrafted, slight differences in size and colour may appear.  Chain ​​silver 925 18K gold plated 38-43cm For fit & styling advice, please email or call us in store +353 1 6794188 | [email protected]