☆ Material: brass alloy ☆ Stones: mood stones, color changing, platinum class (highest) ☆ Stone Size: 12 mm ☆ Chain Length: 50 cm ☆ Colors: amazingly brilliant and vibrant plays of colors in green, turquoise, blue, yellow, brown, black, pink, purple and all under- and mid-tones ☆ Water protection index: 8/10 ☆ Handmade: Yes. I am a professional German jeweler, specialized in the field of mood jewelry. ☆ Bonus: mood color chart explaining the colors Mood Stone Quality Key Platinum class: above th