Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.42 carat white sapphire in a round cut, colorless and untreated. White sapphire is corundum without chromophore trace elements — the same mineral as blue, pink, or yellow sapphire, but entirely colorless. At Mohs 9, it is the hardest colorless gemstone alternative to diamond. At 1.42 carats in a round cut, this stone has the size and format that most directly replaces a diamond in a standard solitaire setting — without the diamond price point.
Expert Opinion
Ahmed Shareek's Assessment
"This 1.42 ct round white sapphire is untreated and loupe-clean — genuinely colorless corundum with no coating, filling, or heat enhancement, cut in the round brilliant format that most directly substitutes for a diamond in a solitaire setting."
Rarity Analysis
White (colorless) sapphire is a small share of overall sapphire production, since most rough is cut and sold for its color rather than the absence of it.
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Color: Fully colorless corundum is uncommon relative to colored sapphire — most rough carries at least faint tinting from trace iron or titanium, so truly colorless material is a minority outcome even before cutting.
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Size: At 1.42 ct, this stone is an above-average center-stone size for white sapphire; most faceted white sapphire on the market runs under 1 carat.
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Treatment: Most colored sapphire in the trade is heat-treated; this stone required no treatment at all to reach its color, which is the natural state for corundum lacking chromophores.
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Clarity: Graded Loupe Clean — a stricter standard than eye-clean, meaning no inclusions are visible even under 10x magnification.
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Documentation: No third-party lab report is on file for this stone; its attributes reflect Crescent Gems' in-house grading.
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Combined effect: An untreated, loupe-clean, above-1-carat round white sapphire is a narrower slice of an already narrow category — most white sapphire buyers compromise on one of these three factors.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View in both daylight and warm indoor light — colorless stones can pick up faint warmth from surrounding metal, so check the stone under the lighting you'll wear it in most.
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At 7.40 x 7.34mm, this stone sits comfortably in a standard 4- or 6-prong solitaire head sized for a diamond of similar face-up diameter, without custom fabrication.
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When comparison-shopping, confirm treatment status in writing — many white sapphires on the market are diffusion-treated or coated, which this stone is not.
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Weigh the scarcity noted above, since genuinely untreated, loupe-clean white sapphire above 1 carat is harder to source than the broader white sapphire category.
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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 # |
CG8037 |
| Carat Weight |
1.42 ct |
| Species / Variety |
Corundum / White Sapphire |
| Shape / Cut |
Round, Modified Round Brilliant |
| Dimensions |
7.40 x 7.34 x 4.00 mm |
| Color / Intensity |
Colorless |
| Phenomenon |
None |
| Treatment |
Untreated |
| Origin |
Sri Lanka (Ceylon) |
| Clarity |
Loupe Clean |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
No lab report on file — report number not listed in product data |
Why Choose this 1.42 ct Round White Sapphire?
The argument for white sapphire in a round brilliant cut is simple: it is the most durable colorless gemstone other than diamond (Mohs 9 vs diamond's 10), it requires no special care for daily wear, and the round format fits any solitaire setting without custom fabrication. At 1.42 carats, this sits in the standard engagement ring center stone size range. Untreated status means no coating, no filling, no color enhancement — pure natural corundum.
Key Benefits of this Natural White Sapphire
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Untreated Natural Colorless Sapphire
No coating, no filling, no heat treatment — natural colorless corundum as found.
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Mohs 9 Hardness
Second hardest natural material — appropriate for daily ring wear without special care protocols.
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Round Brilliant Format
The most common engagement ring shape — fits standard solitaire settings without custom work.
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Practical Center Stone Size
1.42 carats — solidly in the engagement ring center stone range.
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Natural Diamond Alternative
Colorless, hard, durable — without the diamond price.
Features
- Carat Weight: 1.42 Carats
- Gem Type: Natural White Sapphire
- Cut: Round
- Treatment: Untreated
- Color: Colorless
- Clarity: Eye-clean — no visible inclusions under normal viewing
- Hardness: 9 on the Mohs scale
This 1.42 ct round white sapphire has been hand-selected for colorlessness and eye-clean clarity — the two requirements that make a colorless stone function as an effective diamond alternative.
Why Customers Love This Gemstone
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Hardest Colorless Alternative: Mohs 9 — no other gem (except diamond) comes close in daily wear durability.
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Untreated Status: Natural colorless corundum with no enhancements.
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Standard Format: Round brilliant — fits most engagement settings without custom fabrication.
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Trusted Source: Untreated status disclosed honestly, selected for colorlessness.
Owning this 1.42 ct round white sapphire means choosing the most durable colorless diamond alternative at a center stone size that works in any standard engagement design.
Perfect Uses for this 1.42 ct White Sapphire
- Engagement ring center stone — diamond alternative
- Solitaire pendant
- Halo ring center stone
- Minimalist or contemporary jewelry design
- September birthstone gift