Materials: Both are SV925 I loved the color of the Larimar. While many Larimar settings are elegant, this one had an Indian jewelry feel, which was rare and I liked it. However, I didn't use it much, so it's been stored away. Pendant Necklace The chain is also SV925. It's an Italian-made French rope chain. I purchased it separately to match the pendant. The chain was also quite expensive. Please refer to the images for the size and length. Material... SV925