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2.12 carat emerald-cut (octagonal step cut) teal sapphire, completely unheated, measuring 6.98 × 5.67 × 5.20 mm. Step facets are rarely chosen for teal material, but when they are, the result is distinctive — interior color layering between blue and green across different facet planes. Accompanied by GIA Report #5231922096, a Sapphire Report confirming weight, dimensions, color, transparency, and treatment.
Expert Opinion
"Cutters almost never reach for a step cut when they're working teal sapphire rough — an oval, cushion, or round brilliant is the safer choice because it maximizes sparkle and helps blend uneven color. An emerald cut does the opposite: the open, mirror-like facets slow everything down so you can actually see into the stone, and on this piece that means watching blue and green separate across different facet planes instead of blending into one tone. Paired with the fact that it's unheated, with GIA finding no indications of heat treatment, this is a genuinely uncommon combination of cut, color, and treatment for teal material." — Ahmed Shareek, Crescent Gems
Rarity Analysis
- Teal is already one of the less common sapphire colors — most sapphire production skews toward blue, pink, and yellow, with teal representing a narrower slice of what comes out of the ground.
- The emerald cut (step cut) on teal material is a genuine format rarity: the large majority of teal sapphire is cut as oval, cushion, or round specifically to maximize brilliance and even out color. Step facets are rarely chosen for teal material, as this stone's own listing notes, because they demand cleaner material and reward it with visible internal color layering rather than a blended, uniform hue.
- The GIA report grades this stone's color as "Green," while the trade and visual description calls it "Teal." This is not a contradiction — it's a normal, expected nuance. GIA lab reports use a standardized, narrower color vocabulary that doesn't always track the trade and marketing names dealers use for blue-green material; "teal" is a market term, not a GIA grading term.
- The stone is unheated, confirmed by GIA with no indications of heat treatment. The large majority of sapphire on the market today is heat-treated to improve color and clarity, so an unheated stone of this size and quality is meaningfully scarcer.
- Clarity is eye-clean, and every key measurement — weight, dimensions, color, transparency, and treatment — is independently documented on GIA Report #5231922096, removing guesswork from a stone that already sits at the intersection of several uncommon traits.
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Combined effect: an uncommon color, cut rarely paired with that color, unheated status, and independent lab documentation intersect in a single stone — a combination that shows up infrequently in the teal sapphire market.
Buying Guidance
- Don't be thrown off if the GIA report itself reads "Green" in the color field — that's the lab's standardized grading term. "Teal" is how the trade and this listing describe the same blue-green stone; both are describing one and the same gem.
- Step cuts show color differently than brilliant cuts. Instead of scattering light into uniform sparkle, the open facets reveal color zoning and layering — view the stone in person or in detailed photos/video to see how the blue and green separate across facet planes, rather than judging it purely on a distance thumbnail.
- Always verify unheated status independently through the lab report rather than taking a listing's word for it — GIA Report #5231922096 documents this stone's treatment status directly.
- Origin is stated as Madagascar; this is seller-stated rather than confirmed on an origin-specific GIA report, since GIA Sapphire Reports of this type confirm weight, dimensions, color, transparency, and treatment but do not include origin determination here. Buyers who need origin certification specifically should factor that in.
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Try Before You Buy: where possible, view the stone in hand or request additional photos/video under different lighting to see the teal color layering for yourself before committing.
Learn More About This Gemstone
Gemstone Data — At a Glance
| Item # |
CG8354 |
| Carat Weight |
2.12 ct |
| Species / Variety |
Natural Teal Sapphire (Corundum) |
| Shape / Cut |
Emerald Cut (Octagonal), Step Cut |
| Dimensions |
6.98 × 5.67 × 5.20 mm |
| Color / Intensity |
Teal (blue-green); GIA grades the color as Green |
| Phenomenon |
None |
| Treatment |
Unheated (no indications of heating) |
| Origin |
Madagascar — seller-stated |
| Clarity |
Eye-clean |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
GIA Report #5231922096 |
Features
- SKU: CG8354
- Carat Weight: 2.12 carats
- Variety: Teal Sapphire
- Shape: Emerald Cut (Octagonal)
- Cutting Style: Step Cut
- Dimensions: 6.98 × 5.67 × 5.20 mm
- Gem Type: Natural Teal Sapphire
- Origin: Madagascar
- Treatment: Unheated (no indications of heating)
- Color: Teal (blue-green); GIA report grades the color as Green
- Transparency: Transparent
- Clarity: Eye-clean
- Certification: GIA Report #5231922096
- Hardness: 9 on the Mohs scale
Care
- Clean with lukewarm water and mild soap using a soft brush
- Store separately to avoid surface contact
- Remove before heavy physical activity
- Avoid ultrasonic or steam cleaners
One of a Kind
This is a single natural gemstone, not a manufactured or lab-created replica — no two sapphires form with identical color, inclusions, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the GIA report is the exact, individual stone you receive.
What's included with this Teal Sapphire
- GIA Report #5231922096
- Gemstone packed in a gem sleeve
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