No reserve price - 1 pcs Red Ruby - 1.85 ct - Gem research Swiss Lab (GRS) - Vivid/Deep Pigeon Blood
Opens 11:00
Starting bid
€ 1
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Expert
Selected by Purificacion Aquino Garcia
Holds a gemmology degree from IGE Madrid and an MBA from University of Santiago de Compostela.
Retail Estimate € 2,300 - € 2,800
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Description from the seller
Certified Natural Ruby – 1.85 ct – Oval Cut – Deep Red – Untreated
• Gemstone: Natural Ruby
• Weight: 1.85 carats
• Measurements: 9.77 × 6.29 × 3.42 mm
• Shape/Cut: Oval, brilliant/step
• Color: Deep Red - Pigeon blood
• Clarity: Transparent with natural inclusions
• Treatment: No indication of thermal treatment (untreated)
• Certification: GRS (GemResearch Swisslab), Report No. GRS2025-07811 (22/08/2025)
• Origin: Tanzania (Longido)
Notes:
A rare untreated ruby weighing 1.85 ct, certified by GRS. The stone displays a deep red color with sparkling typical of “pigeon blood” and is confirmed as 100% natural with no signs of thermal enhancement, which is highly sought after in the trade. Its classic oval cut ( very big face up) and size make it a perfect candidate for a unique collector’s piece or a fine jewelry creation.
Shipping:
Registered and insured shipping with tracking.
Certified Natural Ruby – 1.85 ct – Oval Cut – Deep Red – Untreated
• Gemstone: Natural Ruby
• Weight: 1.85 carats
• Measurements: 9.77 × 6.29 × 3.42 mm
• Shape/Cut: Oval, brilliant/step
• Color: Deep Red - Pigeon blood
• Clarity: Transparent with natural inclusions
• Treatment: No indication of thermal treatment (untreated)
• Certification: GRS (GemResearch Swisslab), Report No. GRS2025-07811 (22/08/2025)
• Origin: Tanzania (Longido)
Notes:
A rare untreated ruby weighing 1.85 ct, certified by GRS. The stone displays a deep red color with sparkling typical of “pigeon blood” and is confirmed as 100% natural with no signs of thermal enhancement, which is highly sought after in the trade. Its classic oval cut ( very big face up) and size make it a perfect candidate for a unique collector’s piece or a fine jewelry creation.
Shipping:
Registered and insured shipping with tracking.
Details
Nr of stones
1
Lab report number
GRS2025-087811
Gemstone type
Ruby
Total carat weight
1.85
Gemstone colour
Red
Cut grade
Very good
Transparency
Transparent
Clarity grade
Eye clean
Treatment
No evidence of treatment, No heat treatment
Origin as given on certificate
Africa, Tanzania
Laboratory Report
Gem research Swiss Lab (GRS)
Sealed by laboratory
No
Title additional information
Vivid/Deep Pigeon Blood
Shape
Oval
Cutting style
Brilliant cut
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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.
