4.03 ct Red (Vivid) Ruby – Cushion Cut – Heated – Origin Undetermined

This 4.03 ct natural ruby displays a vivid red color with strong saturation, complemented by a well-proportioned cushion cut that delivers excellent brilliance and face-up presence. The stone’s refined cutting enhances its internal glow while maintaining a bold, balanced appearance.

According to the GRS report, the ruby has undergone standard heat treatment (H) to improve color and/or clarity, a widely accepted and permanent enhancement within the trade. An appendix note describes the color as reminiscent of “GRS-type pigeon’s blood ruby” (without strong fluorescence), underscoring its desirable saturation and visual intensity.

The ruby shows lively internal character, attractive transparency, and harmonious proportions, making it well suited for high-end jewelry designs, collectors seeking vivid red material, or investment-focused acquisitions where color presence is paramount.

Every gemstone offered by Sora Gems is professionally inspected inside Bangkok’s Jewelry Trade Center (JTC) to verify authenticity, treatment classification, and overall quality before being approved for sale.

 

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Perfect for:

• Custom high-end rings and signature jewelry
• Designers seeking a statement ruby with fine color
• Collectors wanting top-tier vivid material
• Luxury buyers looking for investment-grade colored gemstones

 

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Specifications

 

Weight: 4.03 carats

Shape: Cushion Cut

Treatment: Heated – Enhanced by heat (no residues present)

Origin: Origin Undetermined

Color: Vivid (vivid saturation)

Clarity: Eye-clean

Certification: GRS Report Available

Sourcing: Inspected & verified 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.