Thank you for viewing! This is a handmade necklace with sparkling Swarovski crystals. The crystals themselves are colorless and transparent, but they have an aurora borealis coating, giving them an iridescent shine that changes color depending on the angle. ☆ Materials Crystal: 15 x 7.5mm Chain length: 45cm (Not allergy-friendly) ☆ Photos Photos 2 and 3 were taken in sunlight. Photos 1, 4, and 5 were taken indoors with LED lighting. ☆ Bundle Discount Discounts are available for multiple purchases (shipped together). Please comment before purchasing. 2 items purchased: 200 yen discount 3 items purchased: 400 yen discount We are sorry, but we do not offer discounts other than the bundle discount. As this is handmade, it does not have the same strength and finish as a mass-produced product. Please consider purchasing only if you understand this. Please also read the profile.