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Tsavorite is an exquisite green gemstone in the garnet family that emulates emeralds in color and brilliance. Discovered in 1967, tsavorite has rapidly surged in popularity in recent decades as a coveted gem for jewelry.
The Birthplace of Brilliance: Tsavorite's Geographic Origins
Northeastern Tanzania and southeastern Kenya form the only region where gem-quality tsavorite has been successfully commercially mined. This defines tsavorite as a Type I gemstone – one sourced from a single primary deposit location. Specifically, two areas produce most of the world's tsavorite:
Tsavo National Park, Kenya
Tsavo sits along the border with Tanzania. Its tsavorite-bearing rocks align with the path of the Galana River. Stones here exhibit a rich, slightly bluish-green hue.
Umba Valley, Tanzania
The Umba Valley borders Tsavo to the south. Gems extracted here have a lighter yellow-green coloration.
Stones that originate from Tsavo or Umba command a premium for their provenance. Additionally, the region of origin can provide hints on the likely hue of a gem. See the catalog of precious stones on our website vividcarat.com and see on your own what tsavorites are available in stock. Every loose gemstone presented has a unique color and properties.
Secondary deposits exist outside East Africa but produce only pale green vanadium tsavorites of lesser value. They are:
- Northern Pakistan
- Southern Kenya
- Antsongombato, Madagascar
So when selecting a fine tsavorite, opt for a stone with certified East African origins. Not only will this provide the best color, but its regional provenance will ensure strong investment value for years to come.
Properties and Qualities
Chemical Composition
Tsavorite's chemistry includes:
- Silica and aluminum like most garnets
- Significant calcium and magnesium
- Trace chromium and vanadium
Its chemical formula is Ca3Al2(SiO4)3(Cr,V)2.
Garnet Family Ties
Tsavorite belongs to the larger garnet group but its composition makes it a rare type called a grossularite garnet. Most garnets seen in jewelry like pyrope and almandine lack tsavorite's calcium and chrome.
Key Physical Properties
|
Property |
Value |
|
Refractive Index |
1.734 to 1.744 |
|
Specific Gravity |
3.6 to 3.7 |
|
Mohs Hardness |
7 to 7.5 |
A high refractive index of tsavarite means exceptional brilliance. It has a higher density than quartz, but lower than typical garnets. Tsavorites are very durable and scratch-resistant which makes them the best choice for people who want to wear jewelry with these gems every day.
Understanding the science behind gems allows proper identification, cutting style choices, and suitable jewelry settings – critical for maximizing a stone's beauty.
Tsavorite's Color Variations
Tsavorite shines with a wide range of green shades, from light yellow-green to deep blue-green. Its coloration depends on trace elements in its structure – mainly chromium and vanadium.
Color Determining Factors
The proportion of chromium and vanadium along with the ratio of calcium to magnesium in tsavorite's composition directly impacts its final color.
- Chromiumproduces vivid green and bluish-green hues
- Vanadiumgenerates yellowish-green tones
Additionally, the ratio of calcium and magnesium affects how colors interact. Higher calcium levels intensify green and blue-green hues, while higher magnesium levels subdue colors towards yellow-green.
Evaluating Color Quality
Gemologists grade tsavorite color on three parameters:
- Hueof a stone
- Tone- Lightness/darkness of color
- Saturation- Intensity/vividness of hue
The most prized tsavorites exhibit a slightly bluish-green hue, with a medium-dark tone and high saturation.
|
Color Grade |
Description |
|
Premium |
Slightly bluish, vivid, moderately dark green |
|
Fine |
Pure, strongly saturated green |
|
Commercial |
Light, yellowish or dark, dull green |
In jewelry applications, delicately saturated, light yellow greens can provide an exquisite, demure beauty. Our jewelry stores located in New York City offer a wide range of tsavorites. Every loose gemstone has its peculiarities. Go to vividcarat.com and see the whole list of gemstones available in stock.
Tsavorite Pricing Per Carat
A rare gemstone of exceptional color and brilliance, Tsavorite holds high-level prices, especially for stones over one carat. Premium quality gems over 5 carats can fetch up to $8,000 per carat!
Scarcity Drives Value
Tsavorite's rarity plays a key role. Found in only a few East African deposits, annual global production averages just 50,000 carats. Compare that to over 100 million carats of diamonds produced each year! With its narrowly constrained supply, prices for fine Tsavorite remain high.
Color Intensity Matters
Vividness of hue and tone also influences price. The most desirable Tsavorites exhibit a highly saturated, slightly bluish-green color of medium-dark tone. Top-grade gems will have minimal secondary hues. Inferior stones will appear more yellowish or brownish.
Clarity is Important
Clean, eye-visible inclusions will negatively impact value. While minor flaws are expected, major imperfections that dim luster or visible cavities substantially reduce prices.
Market Trends
Consumer demand fluctuates over time. During periods of robust demand like we've seen over the past 5 years, prices achieve record highs. Recessions conversely soften prices.
Due to its rarity, tsavorite holds its high costs even during economic downturns. For jewelry that retains its worth through market fluctuations, tsavorite is a reliable choice.
Investing in Green Fire: Tsavorite as a Gemstone Investment
With its scintillating brilliance and extreme rarity, tsavorite presents a compelling option beyond standard assets for investors seeking portfolio diversity.
Several key factors make this lush green garnet uniquely suited for investment potential.
Rarity
With very few economically viable deposits concentrated mainly along the Kenya-Tanzania border, tsavorite reaches the market in extremely limited quantities.
No Treatments Needed
Unlike many gemstones, tsavorites do not undergo treatments to enhance color and clarity. It is one of the few major gem types that is only sold in completely natural form. This untreated status adds to its value and appeal.
High Demand in New York City
While lesser known than the "Big Four" gems (diamond, ruby, emerald, sapphire), tsavorite is rapidly gaining popularity. Demand has grown especially in the last decade as high-end jewelers promote it more. This points to strong future value increases.
So for investors, tsavorite represents an untapped opportunity offering outstanding upside potential and inflation-proof security.
You can buy your enchanting green fire in our jewelry shop vividcarat.com. We are located in New York City. Our assortment includes not only tsavirites but other garnets such as pyropes, Malawi garnets, hessonites, spessartines. In our store, you can choose a gem only by its appearance or study similar stones’ chemical properties – we provide detailed descriptions for each gem.