1.37 ct Natural Heated Blue Sapphire – Oval Cut | Sri Lanka (Ceylon)

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.

Good to Know

A few practical points to weigh before purchasing this specific stone:

• View it under more than one light source. Royal blue sapphire can shift subtly toward navy under warm indoor light, so check it in the lighting you'll wear it in most.
• Consider the setting head size. At 7.42 x 5.52 mm, this oval sits comfortably in a classic four- or six-prong solitaire without needing an oversized setting.
• Ask for the saturation and tone grade when comparison shopping. "Royal blue" is used loosely in the trade, and many stones marketed that way are actually mid-tone or gray-modified blue.
• Weigh availability at this hue and size. Ceylon-origin royal blue sapphire above 1 carat with eye-clean clarity is a narrower slice of the market than lighter or grayer blue stones of the same size.
• Ask for a personal video if you would like to see the stone in motion before finalizing the purchase.

Learn More About This Gemstone

• Blue Sapphire Buyer's Guide
• Unheated Sapphire Guide
• GIA Guide
• Custom Ring Guide
• Oval Sapphire Guide
• Ceylon Sapphire Complete Guide
• Sapphire Buying Guide