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We Source, Cut and Export Gemstones to the world


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Gemstone Cutter Investment

Browse our exclusive collection to select your own special gem! & Buy our top quality colored gemstones Online at the best prices.
Tanzania Most Powerful Gemstones

Ask our gemstone experts for personal help in selecting the very best gems for you. At GCI we source, cut and export gemstones to the world. We have extensive hands-on experience creating rare treasures from the mines.
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Choose your most desirable gemstones and we will customize it according to your desirable shapes!

Gemstone Cutter Investment is a major worldwide importer and exporter of numerous varieties of rough and polished gemstones, including ruby, sapphire, tourmaline, spinel, tanzanite, topaz and garnet. We source precious and semi-precious stones from the mines. Here you will find a safe secure environment which will provide an easy way to learn, try and compare fine unique gemstones.


Rubies are extremely strong, registering 9 on the Mohs scale of hardness. They are as resilient as sapphires and only slightly softer than diamonds.

Green Garnet

Garnet is actually the name of a group of minerals that comes in a rainbow of colors, from the deep red of the Pyrope garnet to the vibrant green of Tsavorites .Their inclusions make them unique!


Exotic tanzanite is found in only one place on earth, near majestic Kilimanjaro. Commercially mined in only one place, tanzanite is rarer than diamond.

You’ve come to the right place

This is what you are here for right! We have different types of gemstones in a variety of raw shapes including round, oval, pear shaped, square, trilliant cut, emerald cut and princess cut!
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Guaranteed: We help you buy gemstones online and explain what to look for when buying gemstones.