This beautiful bismuth ring will certainly steal the show! All our bismuth crystals are home-grown, exclusively unique pieces cannot be replicated. Similar shapes/patterns and colors can be produced but our bismuth jewels as a whole are always one of a kind. The ring is adjustable and simply by pinching or pulling the sides of it you can tighten or loosen the grip allowing for a surprisingly broad range of fits. The vibrant colors coming out of bismuth crystals are varying depending on light exposure. Direct sunlight provides the best color experience in terms of brightness and vividness. Each jewel will be delivered in its designated box, including a bag of moisture absorbent. To maintain the vibrancy of the colors, we advise you to store the jewels in the box when not wearing them. Feel free to contact as in case of more info and we would be glad to answer any of your questions.