Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.21 carat blue sapphire in a trillion (trilliant) cut, heat treated. Trillion-cut blue sapphire is one of the less common format combinations in the market — most blue sapphires are cut oval or cushion for weight efficiency, so a true trillion represents a deliberate shape choice. The three-sided geometric outline of the trillion produces a face-up footprint significantly larger than the carat weight suggests, and the equal-sided triangular form has a bold, architectural character that stands apart from conventional engagement ring shapes.
Expert Opinion
Ahmed Shareek's Assessment
"This 1.21 ct trillion-cut blue sapphire combines a dark, richly saturated Ceylon blue with a step-cut triangular silhouette — a shape combination genuinely uncommon in the blue sapphire market, where most material is cut oval or cushion."
Rarity Analysis
Blue is the most produced sapphire color overall, so scarcity in this category comes primarily from cut and saturation rather than color itself.
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Color: This stone's dark, richly saturated blue (marketed as Royal Blue) sits toward the deeper end of the desirable blue range, distinct from the lighter or grayer blues common in commercial material.
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Size: At 1.21 ct, this is a solid, above-1-carat center-stone weight for blue sapphire.
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Treatment: Heat treatment is standard for the vast majority of blue sapphire on the market — this stone's treatment status is typical for the category, not a scarcity factor.
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Cut: The trillion (three-sided) format is a deliberate minority choice — most blue sapphire rough is cut oval or cushion for weight retention, so a true trillion-cut center stone is genuinely uncommon.
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Documentation: Graded by FGL; no report number is recorded in this stone's product data.
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Combined effect: It is the pairing of a dark, saturated blue with the uncommon trillion cut — not the color alone — that makes this stone difficult to duplicate in the broader blue sapphire market.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View the stone in daylight and under warm indoor light — dark saturated blues can read almost inky under low light, so confirm the tone works in the lighting where you'll wear it most.
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At 7.05 x 6.30mm with three pointed corners, this stone requires a setting with V-prong or protected corner tips — standard for trillion cuts but worth confirming with your jeweler before mounting.
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When comparison-shopping, confirm heat treatment disclosure and lab source in writing, and ask whether any comparable stone offered is a true trillion or a modified triangular cut.
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Weigh the scarcity noted above, since a true trillion-cut center stone in a dark, saturated blue is harder to source than an oval or cushion of the same color and weight.
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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 # |
CG8228 |
| Carat Weight |
1.21 ct |
| Species / Variety |
Corundum / Blue Sapphire |
| Shape / Cut |
Trillion (Trilliant), Step Cut |
| Dimensions |
7.05 x 6.30 x 4.03 mm |
| Color / Intensity |
Blue, Royal Blue (Dark saturation) |
| Phenomenon |
None |
| Treatment |
Heat Treated |
| Origin |
Sri Lanka (Ceylon) |
| Clarity |
Slightly Included |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
FGL — report number not listed in product data |
Why Choose this 1.21 ct Trillion Blue Sapphire?
Trillion-cut blue sapphire is the format for buyers who want a blue sapphire that reads immediately different from the oval-and-cushion majority. The trillion shape is typically seen as a side stone, but at 1.21 carats it makes a distinctive and fully practical center stone — particularly for east-west settings and contemporary minimalist designs. The three sharp corners require protective V-prong or bezel tips, which are standard in trillion settings.
Key Benefits of this Natural Blue Sapphire
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Trillion Cut Distinction
Bold geometric outline — the format that most immediately differentiates from conventional sapphire shapes.
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Large Face-Up for the Weight
The trillion's triangular outline reads larger face-up than oval or cushion at the same carat weight.
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Ceylon Blue Hue
The classic vivid blue associated with Sri Lankan production.
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Durable for Daily Wear
Corundum at Mohs 9, second only to diamond — though corner protection is important in ring settings.
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Contemporary Design Appeal
The trillion format suits modern, minimalist, and architectural jewelry design.
Features
- Carat Weight: 1.21 Carats
- Gem Type: Natural Blue Sapphire
- Cut: Trillion (Trilliant)
- Treatment: Heat Treated
- Color: Blue
- Clarity: Eye-clean — no visible inclusions under normal viewing
- Hardness: 9 on the Mohs scale
This 1.21 ct trillion blue sapphire has been hand-selected for the evenness of its blue and the symmetry of its three-sided cut — the two factors that define a well-cut trillion.
Why Customers Love This Gemstone
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Geometric Distinction: The trillion format is immediately distinctive among sapphire center stones.
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Large Face-Up Presence: The triangular outline maximizes apparent size for the carat weight.
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Contemporary Appeal: Suits modern and minimalist designs that avoid conventional shapes.
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Trusted Source: Treatment disclosed honestly, stone hand-selected for cut symmetry.
Owning this 1.21 ct trillion blue sapphire means choosing the format that makes the most immediate statement — bold geometry in the most recognized sapphire color.
Perfect Uses for this 1.21 ct Trillion Blue Sapphire
- East-west engagement ring center stone
- Geometric pendant design
- Three-stone ring center stone flanked by baguettes
- Contemporary minimalist jewelry commission
- Collectors of unusual-cut sapphires
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