This is a natural crystal that displays an aurora-like color depending on the angle when held up to the light. It is unpolished, with the natural edges, facets, and shape of the crystal. Recommended for those who like wild, natural stones. A gold-plated marcan (loop) is attached to the top. The crystal can be used as a pendant top on its own. Crystal size (approx.): 3 cm long 2 cm wide I found this while organizing my parents' house. When I found it, this chain and top were together, but I don't know if they were originally a set. This is because, as shown in the third photo, the chain and top were not connected with metal fittings, but rather tied together with string. Please understand this before purchasing. The chain is made of silver and has the logo "MISTY". It is 90cm long.