Named after the dual koi fishes, hand sculpted on the Blue Topaz gemstone with 22K Gold Vermeil to honor the highly popular belief of Yin and Yang. In Yin and Yang, it is believed that the universe is controlled by a cosmic duality. With the unification of the eye-catching blue topaz with Koi fish intaglio, they symbolize luck and wealth which is a stunning way to charm your fortune. 22k Gold vermeil on 925 Sterling Silver, and Blue Topaz Gemstone Our unique handcrafted jewellery designs are from 925 Sterling Silver that has been responsibly obtained and finished with 22K Gold Vermeil to ensure the rich gold lustre is preserved for a longer period of time. As Ece London, our necklaces are designed for you to use in long and magnificent times. In order to preserve the beauty and cleanliness of our necklaces like it’s the first day, we recommend that you take them off in the shower, when applying perfume and body makeup. Ece London employs a variety of braided chains, forever influenced by the skills of prehistoric artisans. To avoid damage on these delicate and gorgeous chains please always keep it flat in Ece London purse.