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Buy Natural Violet Blue Tanzanite from Tanzania. 8 x 6 mm Cushion-Cut quality loose gemstone for jewelry from GemSelect.

Blue Tanzanite 2.2 Carat Oval from Tanzania Gemstone

2.15 ct Violet Blue Tanzanite

Blue Tanzanite Carat Oval from Tanzania Gemstone

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1.91 ct Violet Blue Tanzanite

Violet Blue Tanzanite gemstone from Tanzania. carat Oval Facet 9 x 6 mm Natural, Fine Quality Loose Gem for jewelry available now at GemSelect.

Hue means its basic coloration. Tone is the term used to denote the lightness or darkness of the hue. There are 11 tones, 0 to 10, with 0 being colorless and 10 being the darkest. Saturation is the strength of a hue and is considered to be the most important factor in grading tanzanite by most gemological professionals. The lower levels, 1, 2 and 3 are of warm colors like red, orange or yellow, while level 5 is strong and level 6 is vivid or rather over-colored.

Color Grading of Tanzanite

Tanzanite is a gem which is famous primarily because of its color – the more concentrated and saturated the stone the more its value increases.Let us look at the tanzanite color chart to get a better idea of how this stone is graded and evaluated.

tanzanite 656, Cushion Modified Brilliant Cut, 1.96 cts

tanzanite 656, Cushion Modified Brilliant Cut, 1.96 cts

tanzanite 642, Lozenge "Portuguese" Style Cut, 2.14 cts

tanzanite 642, Lozenge "Portuguese" Style Cut, 2.14 cts

tanzanite 662, Cushion "Radiante" Cut, 2.08 cts

Fine Tanzanite blue violet gem with American Cut

tanzanite 640, Oval Modified "Portuguese" Style, 1.84 cts

tanzanite 640, Oval Modified "Portuguese" Style, 1.84 cts

natural tanzanite

Tanzanite, American Cut Gemstones from Gemfix

Tanzanite. Unusual two tone color.

Tanzanite, with an unusual two tone color - photo from dwscustomjewelry

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1.45 ct Green Blue Apatite

Green Blue Apatite gemstone from Madagascar.

4.84cts Zircon | Bozeman Montana Gemstone | Gem Gallery

4.84cts Zircon | Bozeman Montana Gemstone | Gem Gallery

Blue Apatite 1.4ct Oval from Madagascar Natural and Untreated Gemstone

1.36 ct Green Apatite

Blue Apatite Oval from Madagascar Natural and Untreated Gemstone

Brilliant Cut Round Kunzite gemstone (4.8 ct) 11 mm round Rated: 9 / 5 based on 9 customer reviews $130 In stock Product description: Pink kunzite was discovered in 1902 in the Pala District of San Di

4.8 carat round African Kunzite Gemstone

Brilliant Cut Round Kunzite gemstone ct) 11 mm round Rated: 9 / 5 based on…