25 grams. According to Bulgari official website, Bulgari's charity necklace is an exquisite jewel, made of 18K white gold and diamonds, with a chain length of 38cm and a weight of only 25g. This necklace is a product launched by Bulgari brand to support children's charity, and every one sold will be donated to charity. Generally speaking, Bulgari's charity necklace can be considered.