"Caged" Green Sea Glass Necklace handmade by Nathalie Mathoulin in London, United Kingdom. Made from a found piece of sea glass, caged in 18 carat gold on an 18 carat gold chain. Need a second opinion? If you have special requests or just need advice, please reach out to hello@shop-vestige.com. 18k Gold, Sea Glass. Handcrafted in the United Kingdom