6.37 ct Blue (Royal) Sapphire – Oval Cut – Heated – Sri Lanka

This 6.57 ct natural sapphire displays a rich royal blue color with vivid saturation and a deep, elegant tone, complemented by a refined oval cut that enhances brilliance and face-up presence. Sourced from Sri Lanka (Ceylon)—one of the world’s most historically respected sapphire origins—this stone embodies the classic qualities collectors associate with top-tier blue sapphires.

According to the Lotus Gemology report, the sapphire has undergone standard heat treatment (H), a widely accepted and permanent enhancement used to refine color and clarity while preserving the stone’s natural integrity. The color has been classified as “Royal Blue” by Lotus, a designation reserved for sapphires with exceptional richness, depth, and visual appeal.

The sapphire exhibits excellent transparency, strong internal liveliness, and well-balanced proportions. Its substantial size, combined with its vivid color and prestigious origin, makes it an outstanding choice for high-end jewelry, collector-grade acquisitions, or statement designs centered around classic Ceylon blue material.

Every gemstone offered by Sora Gems is professionally inspected inside Bangkok’s Jewelry Trade Center (JTC) to verify authenticity, treatment status, and quality.

 

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Perfect for:

• Custom engagement rings
• High-end bespoke jewelry
• Collectors seeking rare, fully untreated sapphires
• Investment-focused purchases

 

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Specifications

 

Weight: 6.37 carats

Shape: Oval Cut

Treatment: Heated (no residues present)

Origin: Sri Lanka (Ceylon)

Color: Royal Blue - The exceptionally rich azure blue color of this gem earns it the
Lotus “Royal Blue” distinction.

Clarity: Transparent

Certification: Lotus Gemology Report No. 4291-0367

Sourcing: Vetted at the JTC, Bangkok

Shipping: Secure worldwide delivery

To preserve the beauty and longevity of your gemstone, we recommend gentle care. Clean the stone using warm soapy water and a soft brush, avoiding harsh chemicals or ultrasonic cleaners unless the gem type is known to be safe for those methods. Store your jewelry separately in a soft pouch or box to prevent scratches from harder materials. Always remove gemstone jewelry during vigorous activities—such as exercising, swimming, or using household cleaners—to protect it from impact, heat, and chemical exposure. Regular professional inspections are encouraged to ensure settings remain secure and the stone stays in optimal condition.