18kt yellow gold Serpent Bohème diamond pendant necklace from BOUCHERON featuring 18kt yellow gold, round cut diamonds, pavé setting, lobster claw fastening, adjustable sliding fastening and statement pendant. Conscious: 95% of the gold Boucheron uses is recycled, thereby reducing the brand's environmental impact. The remaining 5% is certified Fairmined.. Learn more about what makes a product Conscious on our Conscious Criteria page.