This is a simple necklace featuring an oval-faceted stone of color-change fluorite. This stone changes color from a purplish-blue hue in natural light to a reddish-purple in incandescent light. While the blue color is beautiful on its own, the way the reddish-purple sparkles and mixes in depending on the indoor lighting is captivating. The images with the orange background were taken with incandescent light. The necklace chain is made of silver 925 with an 18k gold finish, a material that is less likely to cause allergies. The length of the necklace can be adjusted up to 45cm with the slide ball. When adjusting, hold the ball and gently pull the chain. ♦・♦ About the Materials ♦・♦ Stone: Gem-quality color-change fluorite, approximately 8x6mm Necklace, Stone Setting: Silver 925 with 18KGP finish ♦・♦ About Packaging ♦・♦ We will send it with simple wrapping. If you are purchasing as a gift, please let us know in a message after your purchase, and we will provide a boxed wrapping service. ♦・♦ Handling Instructions ♦・♦ ※ We make every effort to accurately convey the colors, but please understand that the color may vary slightly depending on your monitor. ※ Pulling or applying strong force may cause the stone to chip or the metal fittings to detach and break. ☆ We hope you have a wonderful encounter with this natural stone ☆