Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.50 carat yellow sapphire in a round cut, from Sri Lanka (Ceylon), heat treated and certified by GIA (Sapphire Origin Report #1246017783, confirming Sri Lanka origin). This stone also passed GIA's color stability test, an added assurance for a color that can sometimes be treatment-sensitive. The round cut at 1.50 carats delivers strong brilliance and warm, saturated golden color, making it an ideal centerpiece for engagement rings, statement pendants, or collector-grade pieces.
Expert Opinion
Ahmed Shareek's Assessment
"What sets this stone apart is that it carries both a GIA Sapphire Origin Report confirming Sri Lanka origin and a passed color stability test — the latter is not something you see requested, or passed, on every heated yellow sapphire."
Rarity Analysis
A few factors make this particular 1.50 ct yellow sapphire more distinctive than a typical stone of its type:
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Color: A strong, medium-intense yellow with a saturated golden face-up appearance rather than a pale or washed-out tone.
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Size: At 1.50 carats, this stone is larger than the sub-1-carat yellow sapphires that dominate entry-level inventory, giving it more presence as a center stone.
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Treatment: Heat treated, the standard and most common treatment for sapphire, disclosed directly on GIA Report #1246017783.
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Clarity: Graded Loupe Clean, meaning no inclusions are visible under 10x magnification.
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Documentation: Backed by a GIA Sapphire Origin Report that confirms Sri Lanka origin and records a passed color stability test — a combination of documentation not commonly offered together on yellow sapphire.
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Combined effect: A confirmed Ceylon origin, a passed color stability test, solid 1.50 ct size, and Loupe Clean clarity together make this a harder stone to match than most heated yellow sapphires at this price point.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View it in natural daylight when possible. Yellow sapphire can read differently under warm incandescent light versus daylight or LED, so daylight gives the truest sense of this stone's strong, saturated golden hue.
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Standard round proportions simplify setting. At 6.29-6.36 x 4.78 mm, this round cut fits widely available prong and bezel mountings without requiring a custom-fabricated setting.
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Confirm independent documentation when comparing stones. Ask whether a competing yellow sapphire's origin and treatment are backed by a lab report like GIA's, and whether color stability has been independently tested rather than just claimed.
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Weigh the documentation against price. Stones carrying both GIA origin confirmation and a passed color stability test, as described in the Rarity Analysis above, are less commonly available together, which is worth factoring into value comparisons.
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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 # |
CG8451 |
| Carat Weight |
1.50 ct |
| Species / Variety |
Corundum / Yellow Sapphire |
| Shape / Cut |
Round / Modified Round Brilliant |
| Dimensions |
6.29-6.36 x 4.78 mm |
| Color / Intensity |
Strong Yellow / Medium Intense |
| Phenomenon |
None |
| Treatment |
Heat Treated |
| Origin |
Sri Lanka (Ceylon) |
| Clarity |
Loupe Clean |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
GIA Report #1246017783 |
Why Choose this 1.50 ct Round Yellow Sapphire?
Yellow sapphire at 1.50 carats combines a versatile round cut with GIA-documented origin, treatment, and color stability. The saturated golden hue reads vividly in any lighting, and the Modified Round Brilliant cut style (a brilliant-cut crown paired with a step-cut pavilion, per GIA) maximizes the stone's light return.
Key Benefits of this Natural Yellow Sapphire
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GIA-Certified Origin and Treatment
Sri Lanka origin and heat treatment both confirmed by GIA Report #1246017783.
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Passed GIA's Color Stability Test
Independent confirmation the color will not fade under normal conditions.
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Natural Golden Hue
Warm, saturated color perfect for meaningful jewelry pieces.
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Versatile Design Use
Ideal for rings, pendants, earrings, and custom jewelry.
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Durable for Daily Wear
Corundum at Mohs 9, second only to diamond.
Features
- Carat Weight: 1.50 Carats
- Gem Type: Natural Yellow Sapphire
- Shape: Round
- Cut Style: Modified Round Brilliant
- Origin: Sri Lanka (Ceylon)
- Treatment: Heat Treated (GIA Report #1246017783)
- Color: Yellow
- Transparency: Transparent
- Clarity: Loupe Clean
- Color Stability: Passed GIA's color stability test
- Certification: GIA Sapphire Origin Report #1246017783
- Hardness: 9 on the Mohs scale
Care
- Clean gemstones regularly to maintain brilliance
- Store each gemstone separately to avoid scratches
- Remove jewelry before heavy activities (sports, gardening, cleaning)
- Avoid dropping or knocking stones against hard surfaces
- Use lukewarm water + mild soap for most gemstones
- Gently clean with a soft brush (like a toothbrush)
- Rinse thoroughly and dry with a soft cloth
- Avoid ultrasonic or steam cleaners for delicate stones
What's included with the gemstone
- GIA Sapphire Origin Report #1246017783
- Gemstone packed in a gem sleeve.
This Yellow Sapphire is carefully selected to ensure premium quality, authenticity, and long-lasting beauty, with its origin, treatment, and color stability independently confirmed by GIA.
Why Customers Love It
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GIA Certified: Origin, treatment, and color stability all independently confirmed.
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Vivid Appearance: Saturated golden hue with refined brilliance.
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Perfect for Custom Jewelry: Ideal centerpiece for unique designs.
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Trusted Source: Sri Lanka origin and heat treatment both confirmed by GIA Report #1246017783.
Owning this 1.50 ct round yellow sapphire means investing in a gemstone that blends natural beauty with documented, GIA-confirmed quality.