No reserve price - 29 pcs Diamond (Colour-treated) - 1.01 ct - Square Blue, Green - VS2, I1 - Gemewizard Gemological Laboratory (GWLab)
11
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05
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14
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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 € 800 - € 950
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Parcel of 29 natural square brilliant-cut diamonds totaling 1.01 carats, color-treated with blue and green fancy colours, clarity range VS2 to I1, GWLab report 250104241019, sealed by the lab and not laser-engraved.
AI-assisted summary
Description from the seller
General Details
Report Number: 250104241019
Date: 16/11/2025
Description: ONE PARCEL OF 29 NATURAL DIAMONDS.
Shape & Cutting style: Square Brilliant
Quantity: 29
Total Weight (Actual): 1.01 Carats
Grading Result
Color grade: Multiple Colors
Comments note this is a mixture of natural Blue and Green diamonds of various intensities and shades.
Clarity grade: VS2-I1
This indicates a range of clarity across the parcel, from Very Slightly Included (VS2), which means inclusions are difficult for a skilled grader to see at 10x magnification, to Included (I1), where inclusions are obvious at 10x and may affect transparency and brilliance. * ENHANCEMENTS: Color treated
This is an important detail. The color of the diamonds (Blue and Green) has been enhanced or changed using a treatment process. This is common for fancy color diamonds and should be disclosed.
COMMENTS:
Diamonds randomly checked.
A mixture of natural Blue and Green diamonds of various intensities and shades.
General Details
Report Number: 250104241019
Date: 16/11/2025
Description: ONE PARCEL OF 29 NATURAL DIAMONDS.
Shape & Cutting style: Square Brilliant
Quantity: 29
Total Weight (Actual): 1.01 Carats
Grading Result
Color grade: Multiple Colors
Comments note this is a mixture of natural Blue and Green diamonds of various intensities and shades.
Clarity grade: VS2-I1
This indicates a range of clarity across the parcel, from Very Slightly Included (VS2), which means inclusions are difficult for a skilled grader to see at 10x magnification, to Included (I1), where inclusions are obvious at 10x and may affect transparency and brilliance. * ENHANCEMENTS: Color treated
This is an important detail. The color of the diamonds (Blue and Green) has been enhanced or changed using a treatment process. This is common for fancy color diamonds and should be disclosed.
COMMENTS:
Diamonds randomly checked.
A mixture of natural Blue and Green diamonds of various intensities and shades.
Details
Lab report number
250104241019
Diamond type
Colour-treated
Number of diamonds
29
Total carat weight
1.01
Fancy colour overtone
Blue, Green
Diamond Clarity Grade
I1, VS2
Laboratory Report
Gemewizard Gemological Laboratory (GWLab)
Sealed by laboratory
Yes
Laser Engraved
No
Shape
Square
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.
