Science Fiction: A Very Short Introduction

Industrious with rich, colorful texture, an AX Armani Exchange watch for your style evolution.

Natural black diamonds are extremely rare. SuperJeweler sells only heat treated black diamonds, treated with the High Pressure Heat Treatment (HPHT) method. In HPHT treatment, white included poor quality diamonds are heated to approximately 1260 degrees Fahrenheit, in a reducing atmosphere, meaning under the conditions of very little oxygen, and the unpleasant white and included diamonds become black. HPHT treatment is completely safe, and produces gem quality b ...