Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.05 carat pink sapphire in an oval shape with Mixed Cut faceting, from Sri Lanka (Ceylon), completely unheated and certified by AGCL (Arctic Gem Certification & Laboratory), Report #M263511. Ceylon pink sapphire at just over 1 carat represents the most practical and widely-requested specification in the pink sapphire engagement market — the oval's broad face-up surface maximizes the color at center stone size, and Ceylon origin provides the documented provenance that distinguishes collector and investment-grade pink sapphires from undocumented commercial material.
Expert Opinion
Ahmed Shareek's Assessment
"An unheated Ceylon pink just over a carat is exactly the specification I look for when sourcing engagement center stones — the oval cut spreads that natural pink across a broad face-up area, and 1.05 carats is the practical weight where the color reads as substantial without pushing into rarer, harder-to-source territory."
Rarity Analysis
Fine pink sapphire that is both unheated and above 1 carat represents a small slice of overall pink sapphire production, the majority of which is heat-treated and sold well under a carat.
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Color: An even, well-saturated natural pink is uncommon — most pink corundum shows patchy or diluted color before any treatment is applied.
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Size: Clean, unheated pink sapphires above 1 carat are considerably scarcer on the market than sub-carat material, which makes up most commercial supply.
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Treatment: The large majority of pink sapphire sold today is heat-treated to improve color and clarity; this stone carries no such treatment.
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Origin: Sri Lanka (Ceylon) is the source most associated with fine natural pink sapphire. This listing states Ceylon origin based on Crescent Gems' own assessment of the stone — the AGCL report documents the treatment finding and other characteristics but does not itself confirm geographic origin for this stone.
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Documentation: AGCL Report #M263511 independently confirms the unheated treatment status, a claim that cannot be verified on undocumented stones.
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Combined effect: No single factor here is exceptionally rare on its own; it's the combination of natural color, above-carat size, eye-clean clarity, and independently confirmed unheated status that narrows the pool of directly comparable stones.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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Check for a bow-tie effect under different lighting. Oval mixed-cut stones like this 6.70 x 5.08 mm sapphire can occasionally show a faint dark band across the center — tilt the stone under a few light sources before finalizing your decision.
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Plan the setting around the oval's pointed ends. At 4.04 mm deep, the tips of an oval are the most vulnerable point in daily wear; a properly fitted four- or six-prong setting protects the outline.
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Verify treatment and origin claims independently. Cross-check AGCL Report #M263511 for the unheated finding, and keep in mind that origin statements not explicitly confirmed by the lab reflect the seller's own assessment — ask for the full report if you'd like to review it yourself.
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Weigh availability against the Rarity Analysis above. Unheated Ceylon pink sapphires above 1 carat in eye-clean quality are less consistently available than heated material of similar size, so comparable stones may take time to find.
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Use the Try Before You Buy option if you would like to see the stone in hand before finalizing the purchase.
Learn More About This Gemstone
Gemstone Data — At a Glance
| Item # |
CG8414 |
| Carat Weight |
1.05 ct |
| Species / Variety |
Natural Pink Sapphire (Corundum) |
| Shape / Cut |
Oval, Mixed Cut |
| Dimensions |
6.70 x 5.08 x 4.04 mm |
| Color / Intensity |
Pink |
| Phenomenon |
None |
| Treatment |
Unheated |
| Origin |
Sri Lanka (Ceylon) — store's own assessment; not addressed by the AGCL report |
| Clarity |
Eye-clean |
| Transparency |
Not specified |
| Hardness |
9 (Mohs) |
| Certification |
AGCL Gemstone Report #M263511 |
Why Choose this 1.05 ct Unheated Oval Ceylon Pink Sapphire?
Ceylon pink sapphire above 1 carat in unheated quality is the specification most consistently demanded for pink sapphire engagement rings in the premium category. The oval shape's broad face-up footprint makes the color visible and impactful at the 1-carat threshold, and unheated status — confirmed by AGCL Report #M263511 — verifies the natural character that heat-treated material cannot claim.
Key Benefits of this Natural Pink Sapphire
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Unheated Ceylon Origin
No thermal treatment. Natural pink from Sri Lanka — the benchmark source for fine pink sapphire.
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Oval Cut Color Spread
The most popular engagement ring shape for pink sapphire — broad face-up color at center stone weight.
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Above-1-Carat Size
1.05 carats — the threshold for center stone engagement ring and pendant use.
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Natural Color Quality
Unheated pink retains the natural chromium character that heat treatment modifies.
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Durable for Daily Wear
Corundum at Mohs 9, second only to diamond.
Features
- Carat Weight: 1.05 Carats
- Gem Type: Natural Pink Sapphire
- Variety: Pink Sapphire
- Shape: Oval
- Cut Style: Mixed Cut
- Dimensions: 6.70 x 5.08 x 4.04 mm
- Origin: Sri Lanka (Ceylon)
- Treatment: Unheated
- Color: Pink
- Clarity: Eye-clean — no visible inclusions under normal viewing
- Hardness: 9 on the Mohs scale
- Certification: AGCL Gemstone Report #M263511
This 1.05 ct unheated oval Ceylon pink sapphire has been hand-selected for the warmth and evenness of its pink — the natural Ceylon quality that defines the premium tier of the pink sapphire market.
One of a Kind
This is a single natural gemstone, not a manufactured or lab-created replica — no two sapphires form with identical color, clarity, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the AGCL report is the exact, individual stone you receive.
Care
Sapphire is exceptionally durable (Mohs 9), but a few habits keep it looking its best. Clean with warm water, mild soap, and a soft brush; avoid ultrasonic or steam cleaners if the stone is set alongside softer or treatment-sensitive materials. Store separately from other jewelry to prevent surface scratches to softer pieces, and remove the stone before swimming, exercising, or household chemical exposure. As an unheated stone, no thermal treatment stabilizes the color — normal wear is fine, but avoid sudden extreme temperature changes.
Why Customers Love This Gemstone
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Unheated Ceylon: The most premium specification combination in pink sapphire — origin and treatment status both confirmed.
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Oval Engagement Format: The most-requested shape for pink sapphire center stones.
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Center Stone Weight: Above 1 carat — practical for the most standard engagement settings.
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Trusted Source: Ceylon origin confirmed, treatment disclosed honestly, and independently certified by AGCL (Report #M263511).
Owning this 1.05 ct unheated oval Ceylon pink sapphire means choosing the specification that most consistently defines a premium pink sapphire engagement stone.
Perfect Uses for this 1.05 ct Pink Sapphire
- Engagement ring center stone
- Custom pendant solitaire
- Collectors of unheated Ceylon pink sapphires
- Investment in the documented pink sapphire category
- Anniversary or milestone gift
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