Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.86 ct Cushion Tsavorite Garnet, completely untreated, certified by GIA Report #1242032119. Tsavorite is calcium aluminum silicate (grossular garnet) colored by trace vanadium and chromium — the most brilliant green gemstone species available in the collector and fine jewelry market. At 1.86 carats this stone sits well above the sub-1-carat sizes most buyers encounter, and the cushion cut's brilliant-faceted crown over a step-cut pavilion concentrates its vivid yellowish-green saturation across the face. Sourced from Kenya and, like all tsavorite, entirely natural with no treatment of any kind.
Expert Opinion
Ahmed Shareek's Assessment
"Most of the tsavorite that crosses my desk is under a carat — this one is 1.86, and you feel that size the moment you look at it face-up. The yellowish-green is warm and even across the whole stone, no dead spots at the corners, which is exactly what you want from a cushion. For a stone this size to be completely untreated and still this clean is genuinely uncommon."
Rarity Analysis
Tsavorite's rarity isn't marketing language — it's a function of geology. Here's what makes this particular stone genuinely scarce:
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Single-Source Geography: Tsavorite forms only in the Mozambique Belt, a narrow band of metamorphic rock running through Kenya and Tanzania. No other commercially significant deposit exists anywhere in the world.
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Above 1.5 Carats Is the Scarcity Threshold: The rough tsavorite crystal typically yields small stones; most cut tsavorite on the market is well under 1 carat. At 1.86 carats, this stone is meaningfully larger than the size most buyers ever see offered.
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Never Treated, By Structure Not Choice: Heat treatment doesn't improve tsavorite's color the way it does sapphire's, and the stone has no fractures that require oil-filling the way emerald's do. Every tsavorite in the market, including this one, is natural color with zero enhancement.
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Cushion Cut Concentration: The brilliant-faceted crown over a step-cut pavilion in this cushion shape concentrates the green saturation face-up — a cutting choice that rewards the stone's natural color rather than simply preserving carat weight.
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Independently Documented: GIA Report #1242032119 confirms this stone's species, weight, and dimensions, removing any ambiguity about what you're buying.
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One of a Kind: This is a single natural stone, not a manufactured or lab-grown product — once sold, this exact tsavorite will not be replaced.
Buying Guidance
A few practical points to consider before purchasing this stone:
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Verify the Report Matches the Stone: Confirm the weight, measurements, and shape on GIA Report #1242032119 match this listing's 1.86 ct, 8.10 x 5.83 x 4.49mm cushion before you buy.
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Price Per Carat: At $2,805 for 1.86 carats, this stone runs roughly $1,508 per carat — within the market range for fine, eye-clean 1–2 ct tsavorite ($1,200–$2,800/ct), and a fraction of what comparable Colombian emerald commands at the same size.
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Setting Considerations: Tsavorite is 7–7.5 on the Mohs scale — durable for regular wear, but a bezel or protective setting is recommended over an exposed prong setting to guard the girdle edges against sharp impact.
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Try Before You Buy: This stone is eligible for our try-before-you-buy program if you'd like to see the color and brilliance in hand before committing.
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Certification First: Because tsavorite has no commercial treatment to disclose, the GIA report's main value here is species and weight verification — confirm it before finalizing a custom setting.
Learn More About This Gemstone
Gemstone Data — At a Glance
| Item # |
CG8465 |
| Carat Weight |
1.86 ct |
| Species/Variety |
Grossular Garnet (Tsavorite) |
| Shape/Cut |
Cushion (Mixed Brilliant) |
| Dimensions |
8.10 x 5.83 x 4.49 mm |
| Color/Intensity |
Yellowish Green, Medium Intense |
| Phenomenon |
None |
| Treatment |
Untreated |
| Origin |
Kenya (store's assessment; not determined by this GIA report) |
| Clarity |
Very Slightly Included |
| Transparency |
Transparent |
| Hardness |
7–7.5 (Mohs) |
| Certification |
GIA Report #1242032119 |
Why Choose this 1.86 ct Cushion Tsavorite?
Above 1.5 carats in a cushion cut is a specification that most tsavorite on the market simply doesn't reach — the rough deposit produces predominantly small crystals, so a stone this size in fine, eye-clean color is a genuine step up in scarcity. The cushion cut concentrates the green saturation in the same way it concentrates blue in sapphire — creating a warm, glowing face-up appearance that maximizes the visual impact of tsavorite's vivid color. GIA Report #1242032119 provides independent documentation of weight, dimensions, species, and color.
Key Benefits of this Natural Tsavorite Garnet
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Completely Untreated
Tsavorite never requires treatment of any kind — this stone is natural exactly as cut from the rough, confirmed by GIA Report #1242032119.
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GIA-Documented
Independent confirmation of species, weight, and dimensions via GIA Report #1242032119.
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Vivid Yellowish-Green, Well Above 1 Carat
At 1.86 carats, this stone is notably larger than the typical sub-1-carat tsavorite most buyers encounter, with color that reads clearly across the whole face.
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Cushion Cut Saturation
The cushion geometry concentrates vivid green across the face — the same effect it creates in blue and pink sapphire.
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Superior to Emerald
Vivid green, typically eye-clean, no oil treatment needed, more durable than emerald for daily wear.
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Trusted Kenya Sourcing
Sourced from Kenya, one of only two commercially significant tsavorite regions on earth, and entirely untreated.
Features
- Carat Weight: 1.86 Carats
- Gem Type: Natural Tsavorite Garnet
- Cut: Cushion (brilliant-faceted crown, step-cut pavilion)
- Origin: Kenya (store's assessment; not determined by this GIA report)
- Treatment: Untreated
- Color: Yellowish Green
- Clarity: Very Slightly Included — minor inclusions, largely eye-clean face-up
- Certification: GIA Report #1242032119
- Hardness: 7–7.5 on the Mohs scale
This 1.86 ct Cushion Tsavorite has been hand-selected for the vividness and evenness of its green and the quality of its cushion cut — the combination that makes tsavorite the most compelling green center stone in the fine jewelry market.
Care
- Clean with lukewarm water, a drop of mild soap, and a soft brush; rinse and pat dry.
- Store this stone separately from other jewelry to prevent surface scratching.
- Remove before heavy manual work, sports, or other activities with a high risk of impact.
- As a default care routine we recommend gentle hand-cleaning over ultrasonic or steam cleaners, particularly once the stone is set alongside other materials or in delicate metalwork.
What's Included
- GIA Report #1242032119
- Protective gem sleeve for safe storage and handling
Perfect Uses for this 1.86 ct Tsavorite Garnet
- Engagement ring — emerald alternative
- Custom pendant center stone
- Halo ring center stone in green
- Collectors of natural tsavorite garnet
- Statement green jewelry commission