1 pcs Red Ruby - 5.10 ct - Gem research Swiss Lab (GRS) - Mogok Burma Natural Ruby
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Current bid
€ 3,000
Reserve price not met
Expert
Selected by Purificacion Aquino Garcia
Holds a gemmology degree from IGE Madrid and an MBA from University of Santiago de Compostela.
Retail Estimate € 50,000 - € 70,000
18 other people are watching this object
 Bidder 2038 | €3,000 | |
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 Bidder 9027 | €2 | |
| Bidder 9027 | €1 |
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Natural Ruby, 1 stone, 5.10 ct, from Mogok, Myanmar, cushion shape with brilliant cut, red and untreated, certified by GRS (GRS2025-081032).
AI-assisted summary
Description from the seller
A rare and valuable Natural Ruby from the legendary Mogok, Burma (Myanmar), weighing 5.10 carats and certified by GRS (GemResearch Swisslab).
This gemstone displays a vibrant red color and comes with no indication of thermal treatment, making it highly desirable for collectors and investors.
Gemstone: Natural Ruby
Weight: 5.10 ct
Cut: Brilliant / Step
Shape: Cushion
Dimensions: 12.92 × 9.20 × 4.16 mm
Color: Red
Treatment: No indication of thermal treatment (Untreated)
Origin: Burma (Mogok, Myanmar) – confirmed by GRS
Certification: GRS Report No. GRS2025-081032
Date of Issue: 3rd September 2025
A rare and valuable Natural Ruby from the legendary Mogok, Burma (Myanmar), weighing 5.10 carats and certified by GRS (GemResearch Swisslab).
This gemstone displays a vibrant red color and comes with no indication of thermal treatment, making it highly desirable for collectors and investors.
Gemstone: Natural Ruby
Weight: 5.10 ct
Cut: Brilliant / Step
Shape: Cushion
Dimensions: 12.92 × 9.20 × 4.16 mm
Color: Red
Treatment: No indication of thermal treatment (Untreated)
Origin: Burma (Mogok, Myanmar) – confirmed by GRS
Certification: GRS Report No. GRS2025-081032
Date of Issue: 3rd September 2025
Details
Nr of stones
1
Lab report number
GRS2025-081032
Gemstone type
Ruby
Total carat weight
5.10
Gemstone colour
Red
Cut grade
Very good
Transparency
Transparent
Clarity grade
Slight
Treatment
No heat treatment
Origin as given on certificate
Myanmar/Burma
Laboratory Report
Gem research Swiss Lab (GRS)
Sealed by laboratory
No
Title additional information
Mogok Burma Natural Ruby
Shape
Cushion
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.
