Make offer rare fancy green tanzanite gem natural zoisite tanzania untreated blue bi color 7 32 ct.
Blue green tanzanite.
For richly colored aaa tanzanite 1ct is approximately worth 300 425 per carat.
Before the discovery of tanzanite the known varieties of zoisite made little impact on the gem market.
In rare cases zoisite is found in pink and green as well as blue to violet.
The saturation is also highly variable with some stones quite pale.
Tanzanite showing a noticeble green component will be worth significantly less.
The name tanzanite is used for a color variety of zoisite that ranges from blue to bluish purple to bluish violet.
Tanzanite belongs to the epidote mineral group.
Although some refer to these colors as pink and green tanzanite gia calls them pink and green zoisite.
3 carats and up will reach 650 750 per carat.
Kilimanjaro in 1967 tanzanites show both dramatic color change and pleochroism in natural light tanzanites can appear an almost sapphire blue.
Tanzanite gemstone chip stone bead 36 inch strand genuine blue and green tanzanite gemstone psc61 fallinlovegems.
About twenty years ago vivid green tanzanite hit the market for a very short time.
2ct sizes reach 450 650 per carat.
In fluorescent light they may appear more violet or amethyst like.
The trade has taken to calling other colors of gem quality zoisite fancy tanzanite or the color followed by the name tanzanite hence green tanzanite.
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Discovered in the shadow of mt.
The blue variety of the mineral zoisite is called tanzanite.
Tanzanite is classified as a type i gemstone by gia meaning that tanzanite specimens are normally eye clean.
But the color range can be quite wide since tanzanite occurs in gold green and violet as well as blue.
So clarity is rarely a problem with tanzanite.
From shop grangem.
Favorite add to 1 94ct pear shape untreated green tanzanite from tanzania grangem.
Tanzanite is only found in tanzania in a very small mining area approximately 7 km 4 3 mi long and 2 km 1 2 mi wide near the mererani hills.
The mineral zoisite naturally occurs in a wide range of colors that include colorless gray yellow brown pink green blue and violet.
Tanzanite is the blue and violet variety of the mineral zoisite a calcium aluminium hydroxyl sorosilicate caused by small amounts of vanadium.
Igi certified 5 grade d block aaaaa tanzanite oval bluish violet 1 250 00.
All gemstones belong to a species first and then carry a variety name.
The current price and value for tanzanite changes based on the weight.
