No reserve price - 1 pcs Diamond (Colour-treated) - 0.27 ct - Round - Fancy Greenish, Yellowish Mixed colours - VS2 - Gemewizard Gemological Laboratory (GWLab)
05
days
17
hours
32
minutes
39
seconds
Starting bid
€ 1
No reserve price
Expert
Selected by Maria René Piacenza Bernal
FGA London gemmologist with 20 years' experience as independent diamond expert and trader.
Retail Estimate € 450 - € 550
No bids placed
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A single 0.27 carat round brilliant cut diamond, colour-treated with a fancy mixed grayish greenish yellow overtone, VS2 clarity, Very Good cut and symmetry, Excellent polish, measuring 4.21×4.14×2.50 mm, weight range 0.23–0.29 ct, sealed by GWLab with report 254103161023 dated 16/11/2025.
AI-assisted summary
Description from the seller
Report Number: 254103161023
Date: 16/11/2025
Shape & Cutting Style: Round Brilliant (The most common cut, designed for maximum light return).
Measurements: 4.21 \times 4.14 \times 2.50\text{ mm}
Weight: 0.27 Carats (A carat is 200 milligrams).
Color and Treatment (Identification)
This section is crucial as it describes the diamond's color and origin:
Color grade: Fancy (AA) grayish greenish Yellow
Report Number: 254103161023
Date: 16/11/2025
Shape & Cutting Style: Round Brilliant (The most common cut, designed for maximum light return).
Measurements: 4.21 \times 4.14 \times 2.50\text{ mm}
Weight: 0.27 Carats (A carat is 200 milligrams).
Color and Treatment (Identification)
This section is crucial as it describes the diamond's color and origin:
Color grade: Fancy (AA) grayish greenish Yellow
Details
Natural fancy colour
Mixed colours
Diamond type
Colour-treated
Lab report number
254103161023
Number of diamonds
1
Fancy colour intensity
Fancy
Fancy colour overtone
Greenish, Yellowish
Total carat weight
0.27
Cut grade
Very good
Diamond Clarity Grade
VS2
Symmetry
Very good
Polish
Excellent
Laboratory Report
Gemewizard Gemological Laboratory (GWLab)
Sealed by laboratory
Yes
Laser Engraved
No
Weight
0.23-0.29
Shape
Round
Cutting style
Brilliant cut
Disclaimer
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.
