Top 10 Significant Localities of Particular Gemstones

In other words, where particular gemstones are mainly found and mined.
The Top Ten
1 Diamond - Russia, Botswana, Canada, Namibia, Angola, South Africa

There are two major diamond bands around planet Earth:
1) Northern band - includes Russia and Canada
2) Southern band - includes Southern African countries and Australia.

2 Sapphire - Madagascar, Sri Lanka, Myanmar
3 Ruby - Myanmar

Myanmar (former Burma) produces approximately 90% of the total world’s supply. The highest quality rubies.

4 Emerald - Colombia

Colombia is the world's leader in emerald production: approximately 70-90% of the total supply in the world. Columbia’s emeralds are with a very good size, color and quality.

5 Aquamarine - Brazil

90% of aquamarine is mined in Brazil

6 Imperial Topaz - Brazil

Brazil is the largest source of imperial topaz in the world

7 Red Beryl (Bixbite) - Utah, USA

Red Beryl is an extremely rare and expensive gem, and gem quality crystals (suitable for cutting gems) have been found only in Utah.

8 Particolored Sapphire - Australia

Particolored Sapphires are sapphires with two or more colors within a single crystal

9 Tanzanite - Tanzania

Only in Tanzania.

10 Opal - Australia

Australia is the biggest producer of opal, contributing to almost 90% of the total world production of opal

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