Moissanite is a mineral discovered in the remains of a meteorite that fell from space 50,000 years ago. Its beautiful, eye-catching sparkle is very attractive. It has a higher refractive index than natural diamonds and is said to shine about 2.5 times brighter. Natural moissanite is extremely rare, but thanks to the success of creating it artificially in the United States, it is now possible to wear its brilliance on your own. It also has excellent durability, making it perfect for everyday use. This necklace features a large, particularly sparkling moissanite and three moissanite stones set to accentuate the sparkle, making it a very satisfying stone-using piece. * TAKE-UP products are Made in Japan, handcrafted by Japanese craftsmen. Materials 10K White Gold, Moissanite Size Height 7.5mm, Width 4.5mm[Chain] Length 40cm (with adjustable link at 37cm) * The lengths above are approximate. Product ID: 2572176