natural color colour diamond encyclopedia encyclopædia naturel naturelle diamant couleur encyclopédie natural color diamond fancy color diamond color diamond encyclopedia sectionmedia stephane aisinber vivid purple pink brilliant intense pink hexagon intense pink radiant brownish pink pear shape light brown cushion chocolat brown brilliant deep reddish brown pear shape olive green emerald grayish-yellow oval deep orange brilliant brownish-yellow heart shape intense orange oval vivid yellow triangle vivid orange yellow marquise yellow cushion olive green brilliant intense yellow pear shape deep yellow triangle deep olive green marquise olive brown cushion grayish olive oval intense greenish yellow princess yellowish green bishops hat intense yellowish green radiant vivid green blue oval grey blue pear shape grey brilliant intense blue Asscher cut deep blue oval

British Guyana Although color as well as colorless diamond production in British Guyana are very modest, color diamonds do make up in quality what they lack in quantity, with exceptional turquoise and sharp marine colors: they are extremely brilliant and their color is reminiscent of the Caribbean seas. Rough, these stones are often covered with superficial spots, testament to their long exposure to natural radiation. These diamonds are extremely rare, very sought after and have an almost incalculable commercial value. Types of diamonds produced in British Guyana: colorless, turquoise, aquamarine. Production of diamonds (all types taken together) Mine Carats ('000) $/ct $ ('000) Operator Small Operators + Artisans 20 80 1,600 Various