priceless 'Sefadu Diamond', is the world's largest rough uncut
diamond. Discovered in 1970 near the town of Sefadu in Sierra
Leone, the diamond weighs 620 carats and measures 2.75 inches
from tip to tip. By contrast, the average diamond ring weighs
one-third of a carat, even the famous Hope Diamond pales in
comparison, weighing a mere 44 carats.
rare diamond is owned by lazare Diamonds of USA, who have
kept it in its natural, uncut state.
NEW coloured gemstone, christened Mandarin Garnet, is wining
interest among the international buying community.
stone, which is mined exclusively in Namibia, is pure spessartine
garnet and an intense orange in colour.
named Hollandine, in honour of the Dutch royal House of Orange,
Mandarin Garnet is available in any size and shape up to 10
carats. It has a hardness of 7.4-7.5, a specific gravity close
to 4.1 and refractive index of about 1.8.
stone "displays an intense orange colour that is particularly
brilliant on winter days or in the evening when the light