Topaz in its rarest colours
Imperial topaz is topaz in golden orange, pink and red. The main source is around Ouro Preto in Minas Gerais, Brazil, a small district that has produced it for centuries.
Chromium gives the pink and red tones, and red is the rarest of all. Much pink topaz in trade is heated from orange or coloured by other means; natural, untreated pink to red stones are scarce.
SOURCE
Ouro Preto, Brazil
A small district in Minas Gerais.
COLOUR
Orange to red
Red is the rarest; pinkish orange is the classic colour.
TREATMENT
Pink often heated
Natural pink and red are scarce.