Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 0.43 carat round yellow sapphire, completely unheated, documented on AGCL Report #M262740. At 0.43 carats in a round cut, this is a small stone with the most practical format for its scale — round calibrated sapphires fit the widest range of standard earring, pendant, and accent settings without custom fabrication. Natural and unheated, the yellow color is exactly as the earth formed it, which is a meaningful distinction even at sub-half-carat weight.
Expert Opinion
Ahmed Shareek's Assessment
"Most yellow sapphire on the market under half a carat has been heat-treated to intensify color, so this 0.43 ct round at 4.60 x 4.60 x 2.83 mm stood out to me for showing bright, even natural yellow with no thermal history, confirmed on AGCL Report #M262740."
Rarity Analysis
Yellow sapphire is one of the more commonly available commercial colors, but unheated yellow sapphire at small carat weights is a meaningfully smaller segment of that supply.
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Color: Yellow sapphire is a widely available commercial color, but natural, unheated yellow with good saturation is far less common than heat-treated material, since heating is routinely used to brighten or deepen pale yellow stones.
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Size: At 0.43 ct, this stone is within the typical range for small round yellow sapphire; unheated stones at this weight are less consistently available than heated equivalents.
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Treatment: A large majority of commercial yellow sapphire is heat-treated; this stone carries a "No Indication of Heating" finding on AGCL Report #M262740.
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Clarity: Eye-clean clarity — no visible inclusions under normal viewing — supports bright, unobstructed color transmission at this size.
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Documentation: AGCL Report #M262740 independently confirms the stone as natural corundum, its weight, dimensions, and no indication of heating; origin is the store's own assessment and is not addressed by the lab report.
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Combined effect: Natural color, unheated status, and eye-clean clarity together make this a stone that costs more to source than its modest size alone would suggest, particularly for Jyotish buyers who specifically require unheated Pukhraj.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View it under natural daylight. Yellow sapphire's saturation can appear warmer under incandescent light and cooler under daylight or LED — check both before deciding.
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Confirm your setting's seat size against 4.60 mm. This round calibrates close to a standard 4.5–4.75mm seat — verify your specific mounting before ordering.
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Request the lab report directly, not a summary. AGCL Report #M262740 documents this stone's treatment status independently — ask for it when comparison-shopping.
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If buying for Jyotish use, confirm unheated status explicitly. Traditional use of Pukhraj typically requires unheated natural sapphire; this stone's AGCL report supports that requirement.
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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 # |
CG8389 |
| Carat Weight |
0.43 ct |
| Species / Variety |
Corundum / Yellow Sapphire |
| Shape / Cut |
Round, Brilliant |
| Dimensions |
4.60 x 4.60 x 2.83 mm |
| Color / Intensity |
Yellow |
| Phenomenon |
None |
| Treatment |
Unheated — No Indication of Heating |
| Origin |
Sri Lanka (Ceylon) (store's own assessment; not addressed by the lab report) |
| Clarity |
Eye-clean |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
AGCL Report #M262740 |
Why Choose this 0.43 ct Unheated Round Yellow Sapphire?
Unheated yellow sapphire at 0.43 carats round is the format for buyers who want natural color in a size that suits earrings, pendants, and accent ring applications — and for Jyotish buyers who need unheated natural Pukhraj in a smaller, more accessible weight. The round format fits the widest range of standard settings at this scale.
Key Benefits of this Natural Yellow Sapphire
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Unheated Natural Color
No thermal treatment at any stage — the yellow is exactly as formed in the earth.
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Round Format Versatility
Fits the widest range of standard earring, pendant, and accent settings at this scale.
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Jyotish-Suitable
Unheated natural yellow sapphire (Pukhraj) for Vedic astrological use.
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Accessible Weight
Sub-half-carat makes natural unheated yellow sapphire accessible for accent and earring use.
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Durable for Daily Wear
Corundum at Mohs 9, second only to diamond.
Features
- Carat Weight: 0.43 Carats
- Gem Type: Natural Yellow Sapphire
- Shape: Round
- Cut Style: Brilliant
- Treatment: Unheated — No Indication of Heating per AGCL Report #M262740
- Color: Yellow
- Clarity: Eye-clean — no visible inclusions under normal viewing
- Transparency: Transparent
- Origin: Sri Lanka (Ceylon) (store's own assessment; not addressed by the AGCL report)
- Certification: AGCL Report #M262740
- Hardness: 9 on the Mohs scale
This 0.43 ct unheated round yellow sapphire has been hand-selected for the brightness of its yellow and the consistency of its round cut — natural color in a practical accent-stone format.
Why Customers Love This Gemstone
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Unheated Natural Yellow: Natural color — no thermal history even at this small size.
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Round Compatibility: Fits standard settings at this weight without custom work.
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Jyotish-Ready: Unheated Pukhraj at an accessible weight.
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Trusted Source: Treatment disclosed honestly, stone selected for color brightness.
Owning this 0.43 ct unheated round yellow sapphire means choosing a small stone with a natural color that most commercial alternatives cannot match.
Perfect Uses for this 0.43 ct Yellow Sapphire
- Earring center stones (pair)
- Small pendant accent
- Jyotish / Vedic astrological use (Pukhraj)
- Stackable ring accent stone
- Custom micro-pave or accent commission
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