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A natural 0.58 carat violet sapphire in a trillion (trilliant) cut, completely unheated, documented on AGCL Report #M262618. The trillion is an equal-sided triangular shape that creates a larger face-up appearance than oval or round equivalents of the same weight, and in violet sapphire, the three-sided outline creates a striking geometric accent. At 0.58 carats, this stone is well-sized for earring accent positions, three-stone ring side stones, and small pendant designs where the trillion's distinctive outline adds visual character.
Expert Opinion
Ahmed Shareek's Assessment
"At 0.58 carats this trillion shows a clean lavender-violet across its full triangular face — the three-sided cut is rarely used for violet sapphire, and AGCL Report #M262618 confirms the color is entirely natural, with no heat treatment involved."
Rarity Analysis
Violet sapphire occupies a narrow hue zone between blue and purple, and represents a small share of overall sapphire production compared to blue, yellow, or pink material.
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Color: Violet is a genuinely uncommon body color for sapphire, distinct from both blue and purple, and only a minority of corundum production falls cleanly into this hue zone.
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Size: 0.58 carats is a modest, accent-appropriate weight; most violet sapphire in this size range is cut oval or round, not trillion.
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Treatment: The large majority of commercial sapphire is heat-treated to improve color; this stone's violet hue is entirely natural and confirmed unheated per AGCL Report #M262618.
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Cut: Trillion faceting is uncommon for violet sapphire specifically — cutters more often choose the shape to retain weight in blue or yellow rough.
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Documentation: AGCL Report #M262618 confirms natural corundum, weight, shape, and no indication of heating.
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Combined effect: The combination of a rare hue, an unusual cut choice, and unheated status is what makes this stone hard to duplicate — not any single trait on its own.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View the stone table-up under natural daylight to see the full triangular color spread — trillions distribute color differently than brilliant round cuts.
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Confirm corner protection in your setting: trillion outlines have pointed corners, and the 5.07 x 5.02 mm footprint benefits from V-prongs or protective bezel points.
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Request written treatment disclosure when comparison shopping: violet sapphire is frequently heat-treated to achieve or enhance this hue, so an unheated claim should be lab-documented.
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Weigh availability against the Rarity Analysis above: trillion-cut violet sapphire in unheated quality doesn't come up often at this weight; a like-for-like replacement may take time to source.
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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 # |
CG8381 |
| Carat Weight |
0.58 ct |
| Species / Variety |
Corundum / Violet Sapphire |
| Shape / Cut |
Trillion (Trilliant), Mixed Brilliant |
| Dimensions |
5.07 x 5.02 x 3.04 mm |
| Color / Intensity |
Violet (Lavender) |
| Phenomenon |
None |
| Treatment |
Unheated — No Indication of Heating (AGCL Report #M262618) |
| Origin |
Sri Lanka (Ceylon) — store's own assessment; not addressed by the AGCL report |
| Clarity |
Eye-clean |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
AGCL Report #M262618 |
Why Choose this 0.58 ct Unheated Trillion Violet Sapphire?
Trillion-cut violet sapphire in unheated quality at this weight combines three uncommon characteristics: a geometric cut rarely used for violet material, a natural color that heat treatment typically destroys, and a sub-carat scale that makes it practical for accent and earring applications. The three-sided outline reads larger face-up than the carat weight suggests.
Key Benefits of this Natural Violet Sapphire
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Unheated Natural Violet
No thermal treatment — natural color. Heat destroys the violet-blue balance this hue requires.
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Trillion Cut Face-Up Impact
The triangular outline reads larger face-up than oval or round equivalents at the same weight.
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Distinctive Geometric Format
Trillion violet sapphire at this weight is an unusual combination — immediately distinctive.
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Versatile Accent Scale
0.58 carats — ideal for earring accents, three-stone side stones, and pendant applications.
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Durable for Daily Wear
Corundum at Mohs 9 — corner protection recommended for ring settings.
Features
- Carat Weight: 0.58 Carats
- Gem Type: Natural Violet Sapphire
- Shape: Trillion (Trilliant)
- Cut Style: Mixed Brilliant
- Treatment: Unheated — No Indication of Heating per AGCL Report #M262618
- Color: Violet (Lavender)
- 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 #M262618
- Hardness: 9 on the Mohs scale
This 0.58 ct unheated trillion violet sapphire has been hand-selected for the purity of its violet and the symmetry of its three-sided outline — the geometric quality that defines a well-cut trillion.
Why Customers Love This Gemstone
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Unheated Violet: Natural color in the rarest format for this hue.
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Trillion Face-Up Size: Reads larger than weight — practical elegance.
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Geometric Distinction: The bold triangular outline stands apart from conventional sapphire accent shapes.
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Trusted Source: Treatment disclosed honestly, selected for color and symmetry.
Owning this 0.58 ct unheated trillion violet sapphire means choosing a small stone with strong geometric character and rare natural color.
Perfect Uses for this 0.58 ct Trillion Violet Sapphire
- Three-stone ring side stones (pair)
- Drop earring accent
- Small pendant center stone
- Collectors of trillion-cut violet sapphires
- Custom geometric jewelry design
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