Silver Edition, Copper Edition (Produced by us) Van @leef & Arpels Alhambra heart-shaped necklace, customizable in genuine gold and diamond version. For bulk inquiries, please contact customer service. The Sweet Alhambra collection features jewelry pieces with small, lucky motifs that exude an air of joy and happiness. These lightweight and delicate pieces accompany the wearer gracefully through each blissful day.ZP is only available in rose gold with red agate, with no other color options. The ZP material is K-gold, and we use pure silver, then add a protective layer followed by thick gold plating to ensure maximum color retention. The plating layer is made from quality materials, and we welcome authentication. There are countless versions on the market, but no one has truly developed ZP. Many on the market flaunt the smoothness of their designs while claiming to be similar. Just look at the pictures, and you'll see the difference. We welcome comparisons with any versions on the market.