No reserve price - 1 pcs Red Ruby - 2.09 ct - Guild Gem Laboratory - Vivid Red
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€ 5
No reserve price
Expert
Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 550 - € 700
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A natural 2.09 carat ruby, unstained by heat, with a vivid red colour, 1 stone, octagonal step cut, transparent clarity, strong fluorescence, and Guild Gem Laboratory certification No. 3116798889.
AI-assisted summary
Description from the seller
Rare 2.09 ct Unheated Vivid Red Ruby – Guild Certified
A magnificent 2.09 carat unheated natural ruby with exceptional color and certification. This stone stands out as a true collector’s gem due to the complete absence of thermal enhancement — a rarity in rubies of this size and quality.
Key Specifications:
• Weight: 2.09 carats
• Dimensions: 9.22 × 5.26 × 3.85 mm
• Shape: Octagonal (rectangular step cut)
• Cut: Step cut – elegant and classic, showcasing the stone’s natural depth and color beautifully
• Species: Natural Corundum
• Variety: Natural Ruby
• Color Grade: Vivid Red
• Special Comment: Strong Fluorescence
• Treatment: No indication of thermal enhancement (fully unheated)
Certification
Official Guild Gemological Report No. 3116798889 dated June 24, 2026. The report explicitly confirms the ruby is natural with no thermal enhancement, making it significantly rarer and more valuable than heat-treated stones. The certificate is included with the gem.
Visual Appeal
This ruby displays a rich, saturated vivid red color with excellent transparency and brilliance. The step-cut octagonal shape elegantly emphasizes the stone’s intense hue and internal clarity. It exhibits strong fluorescence under UV light, a desirable trait that often enhances the visual appeal. The large size combined with unheated status makes this an outstanding piece for high-end jewelry or investment.
Why This Ruby is Special
Unheated rubies of over 2 carats with vivid red color and strong fluorescence are exceptionally scarce on the market. This stone offers the perfect balance of size, color intensity, and natural untreated status — highly sought after by serious collectors and connoisseurs.
Condition: Excellent – clean to the eye with vibrant color and strong luster. Ready for custom setting in a ring, pendant, or other fine jewelry.
This rare unheated Vivid Red Ruby comes with full Guild certification for complete peace of mind and provenance. A standout gem that combines beauty, rarity, and investment potential.
Shipping
* Shipped from Thailand via DHL, FedEx, or equivalent international courier
* Secure and trackable packaging
* Item will be shipped in accordance with international shipping regulations
* Import duties, VAT, customs fees, and local taxes, if applicable, are the sole responsibility of the buyer
* Any customs-related delays are beyond the seller’s control
Seller's Story
Verdant Gems is a globally connected gemstone dealer, sourcing natural rubies and fine coloured stones directly from origin. Operating out of Bangkok, we bring unique, high-quality gems to collectors and jewellery lovers worldwide.
Rare 2.09 ct Unheated Vivid Red Ruby – Guild Certified
A magnificent 2.09 carat unheated natural ruby with exceptional color and certification. This stone stands out as a true collector’s gem due to the complete absence of thermal enhancement — a rarity in rubies of this size and quality.
Key Specifications:
• Weight: 2.09 carats
• Dimensions: 9.22 × 5.26 × 3.85 mm
• Shape: Octagonal (rectangular step cut)
• Cut: Step cut – elegant and classic, showcasing the stone’s natural depth and color beautifully
• Species: Natural Corundum
• Variety: Natural Ruby
• Color Grade: Vivid Red
• Special Comment: Strong Fluorescence
• Treatment: No indication of thermal enhancement (fully unheated)
Certification
Official Guild Gemological Report No. 3116798889 dated June 24, 2026. The report explicitly confirms the ruby is natural with no thermal enhancement, making it significantly rarer and more valuable than heat-treated stones. The certificate is included with the gem.
Visual Appeal
This ruby displays a rich, saturated vivid red color with excellent transparency and brilliance. The step-cut octagonal shape elegantly emphasizes the stone’s intense hue and internal clarity. It exhibits strong fluorescence under UV light, a desirable trait that often enhances the visual appeal. The large size combined with unheated status makes this an outstanding piece for high-end jewelry or investment.
Why This Ruby is Special
Unheated rubies of over 2 carats with vivid red color and strong fluorescence are exceptionally scarce on the market. This stone offers the perfect balance of size, color intensity, and natural untreated status — highly sought after by serious collectors and connoisseurs.
Condition: Excellent – clean to the eye with vibrant color and strong luster. Ready for custom setting in a ring, pendant, or other fine jewelry.
This rare unheated Vivid Red Ruby comes with full Guild certification for complete peace of mind and provenance. A standout gem that combines beauty, rarity, and investment potential.
Shipping
* Shipped from Thailand via DHL, FedEx, or equivalent international courier
* Secure and trackable packaging
* Item will be shipped in accordance with international shipping regulations
* Import duties, VAT, customs fees, and local taxes, if applicable, are the sole responsibility of the buyer
* Any customs-related delays are beyond the seller’s control
Seller's Story
Verdant Gems is a globally connected gemstone dealer, sourcing natural rubies and fine coloured stones directly from origin. Operating out of Bangkok, we bring unique, high-quality gems to collectors and jewellery lovers worldwide.
Details
Number of stones
1
Lab report number
3116798889
Gemstone type
Ruby
Total carat weight
2.09
Gemstone colour
Red
Optical effect
Fluorescence
Transparency
Transparent
Clarity grade
Moderate
Treatment
No evidence of treatment
Origin as given on certificate
No origin given
Laboratory report
Guild Gem Laboratory
Sealed by laboratory
No
Title additional information
Vivid Red
Cutting style
Step cut
Sold by
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Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
