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Hambergite
Hambergite is one of the lesser-known gemstones. It is usually almost colorless, with the vitreous luster of glass when cut. It is quite a hard material, with a hardness of 7.5 on the Mohs scale, so it takes a very good polish. Hambergite derives its name from the Swedish geologist and geographer Axel Hamberg (1863-1933).

There are several features that make hambergite quite unique. It has very strong double refraction, with a birefringence rating much higher even than zircon. Hambergite also has a low density, but a high refractive index, a combination that is very unusual in the gemstone world.
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Satisfied with gem & purchase process! Thanks!
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Easy to see the gemstones you are buying, easy to see prices and shipping.
Posted By Amy in October, 2018
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I have been using GemSelect for at lest five years and I have no complaints!
Posted By in October, 2018
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This site always has beautiful stones to choose from and you will get the actual gem that is pictured. The shipping is fast and reasonably priced.
Posted By CAC in October, 2018
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I have not gotten my gems, but when i do i will be very happy, yet i did not like you had to pay $15 extra for faster shipping
Posted By Jack in October, 2018
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Overall Rating -> 10 star ratings
I love GemSelect, personally. I browse their site almost daily to see all the new stones available. Their selection is pretty amazing. The quality isn't always the highest and the cut of the stones isn't always perfect. But for the price, and if you look hard enough, you can find a real gem, so to speak.
Posted By Patrick in September, 2018
Source: Bizrate
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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