Wow! What color! This beautiful necklace features a 6 ct barrel shaped, checker cut, NATURAL mystic fire topaz. The color is much better than the picture with big flashes of green, purple, pink and blue. Above the topaz is a .01 ct natural diamond. The setting is solid 10k yellow gold. The pendant measures 22x9 mm, including the bale, and comes on an 18 inch long pendant chain also made of 10k yellow gold with a spring-loaded round clasp. Pendant and chain weigh 2.6 grams together.