Kimberlite Diamond (brand) Kimberlite Diamond (brand) Kimberlite Diamond () is China's first diamond jewellery manufacturer and retailer with a nationwide sales network. Kimberlite Diamond was founded in 1995 and the brand is China's first diamond-based retailing jewelry company. In 1997, the brand reached a "Quality Appraisal Agreement" with the HRD (Belgian High-level Diamond Council) which gave local Chinese consumers confidence. In September, 1998, the brand became a member of the Gems & Jewelry Association of China. In 2007, Kimberley Diamond Design Work "SOPRANO (Soprano)" was one of the finalists for the "Opera Night" Diamond Design Competition in the HRD AWARDS 2007 held by
Gemstone irradiation produce mixtures of blue and yellow-to-brown colors, so heating is required as an additional procedure to remove the yellowish color. In some cases, the new colors induced by artificial irradiation may fade rapidly when exposed to light or gentle heat, so some laboratories submit them to a "fade test" to determine color stability. Sometimes colorless or pink beryls become deep blue upon irradiation, which are called Maxixe-type beryl. However, the color easily fades when exposed to heat or light, so it has no practical jewelry application. Gemstone irradiation The gemstone irradiation is a process in which a gemstone is artificially