Nice Diamond was founded in Kofu, Japan in 2004 by Nishchal Sheth, who began the business trading loose diamonds. Over the years, his growing interest in colored gemstones led the company in a new direction, gradually expanding its collection to include a wide variety of colored stone jewelry.

Today, Nice Diamond remains a family-run business, specializing in natural colored stone, diamond, and brand jewelery. Nishchal continues to be actively involved in the business, working with the team to source and select pieces from across Japan.