Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 1.37 carat royal blue Ceylon sapphire in an oval cut, heat treated. Royal blue is the most prized hue position in blue sapphire — a medium-dark, strongly saturated pure blue with no significant gray, green, or violet modifier. It is the color most associated with museum-quality Kashmir and Burmese sapphires, and at the finest end of Ceylon production, the same royal blue character is achievable. The oval cut at 1.37 carats places this stone squarely in the commercial center stone size range for engagement rings and pendants.
Why Choose this 1.37 ct Royal Blue Ceylon Sapphire?
Royal blue is the destination hue for blue sapphire buyers — the color that defines the category in most people's minds. In Ceylon origin at 1.37 carats, this stone offers the royal blue character that drives sapphire demand at a scale that is commercially accessible. Heat treatment is the standard for commercial sapphire and is fully disclosed; the royal blue designation reflects the stone's hue position, not a treatment enhancement.
Key Benefits of this Natural Blue Sapphire
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Royal Blue Hue
The most prized position in blue sapphire — medium-dark, strongly saturated, pure blue with no modifying hue.
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Ceylon Origin
Sri Lanka — the primary active source for fine royal blue sapphire at the commercial level.
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Oval Cut Versatility
The most popular engagement ring shape for Ceylon blue sapphire — broad face-up color and strong presence.
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Center Stone Size
1.37 carats in an oval — sufficient weight for a commanding engagement or pendant center stone.
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Durable for Daily Wear
Corundum at Mohs 9, second only to diamond.
Features
- Carat Weight: 1.37 Carats
- Gem Type: Natural Blue Sapphire
- Cut: Oval
- Origin: Sri Lanka (Ceylon)
- Treatment: Heat Treated
- Color: Royal Blue
- Clarity: Eye-clean — no visible inclusions under normal viewing
- Hardness: 9 on the Mohs scale
This 1.37 ct royal blue Ceylon sapphire has been hand-selected for the purity and depth of its blue — the hue position that defines what a fine blue sapphire is supposed to look like.
Why Customers Love This Gemstone
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Royal Blue Benchmark: The hue most associated with fine sapphire — no modifier, fully saturated.
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Ceylon Quality: The origin that consistently delivers this color at the commercial level.
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Oval Practicality: The most requested shape for blue sapphire engagement stones.
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Trusted Source: Treatment disclosed honestly, color quality hand-selected.
Owning this 1.37 ct royal blue Ceylon sapphire means choosing the hue that defines what blue sapphire is — in the origin and cut that make the most of it.
Perfect Uses for this 1.37 ct Blue Sapphire
- Engagement ring center stone
- Custom pendant solitaire
- Three-stone ring center stone
- September birthstone gift
- Anniversary gift at the fine jewelry level
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