All gemstones belong to a species first and then carry a variety name.
Blue green tanzanite.
For richly colored aaa tanzanite 1ct is approximately worth 300 425 per carat.
The blue variety of the mineral zoisite is called tanzanite.
Before the discovery of tanzanite the known varieties of zoisite made little impact on the gem market.
From shop grangem.
Make offer rare fancy green tanzanite gem natural zoisite tanzania untreated blue bi color 7 32 ct.
About twenty years ago vivid green tanzanite hit the market for a very short time.
Igi certified 5 grade d block aaaaa tanzanite oval bluish violet 1 250 00.
So clarity is rarely a problem with tanzanite.
Tanzanite is the blue and violet variety of the mineral zoisite a calcium aluminium hydroxyl sorosilicate caused by small amounts of vanadium.
Tanzanite gemstone chip stone bead 36 inch strand genuine blue and green tanzanite gemstone psc61 fallinlovegems.
3 carats and up will reach 650 750 per carat.
2ct sizes reach 450 650 per carat.
The name tanzanite is used for a color variety of zoisite that ranges from blue to bluish purple to bluish violet.
Green tanzanite is actually a green zoisite.
Tanzanite showing a noticeble green component will be worth significantly less.
Discovered in the shadow of mt.
Although some refer to these colors as pink and green tanzanite gia calls them pink and green zoisite.
Tanzanite belongs to the epidote mineral group.
In rare cases zoisite is found in pink and green as well as blue to violet.
But the color range can be quite wide since tanzanite occurs in gold green and violet as well as blue.
The current price and value for tanzanite changes based on the weight.
The mineral zoisite naturally occurs in a wide range of colors that include colorless gray yellow brown pink green blue and violet.
In fluorescent light they may appear more violet or amethyst like.
The saturation is also highly variable with some stones quite pale.
This material was similar in color to chrome tourmaline and was very attractive and quite valuable.
Tanzanite is classified as a type i gemstone by gia meaning that tanzanite specimens are normally eye clean.
Material that is available today has a mix of yellow and or blue with the green and is not as desirable or as valuable.
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.
Favorite add to 1 94ct pear shape untreated green tanzanite from tanzania grangem.
