No Reserve Price - 2 pcs Diamond (Colour-treated) - 0.44 ct - Round - Fancy vivid Blue - I2 - Antwerp Laboratory for Gemstone Testing (ALGT)
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Current bid
€ 3
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 € 430 - € 500
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Two colour‑treated blue round brilliant diamonds, total 0.44 carat (0.22 ct each), I2 clarity, cut grade Fair to Very Good, polish Good to Very Good, symmetry Fair to Very Good, girdle from slightly thick to very thick, lab sealed with ALGT report 45967798 dated 26 June 2025.
AI-assisted summary
Description from the seller
IGI Report Number #45967798
Report Date : 26 June, 2025
REBZ-XMZ (B)
=======================================================================================
ALGT Diamond Grading Report
Identification ................................................................. Natural Diamond
Shape and Cutting Style ............................................. Round Brilliant
Measurements1 ............................................... 3.84 - 3.87 x 2.34 mm
Measurements2 ............................................... 3.78 - 3.86 x 2.41 mm
Grading Results
Total Carat Weight ................................................................ 0.44 Carat
Color Grade .................................................................. Fancy Vivid Blue
Color Origin .................................................................................... Treated
Clarity Grade .............................................................................................. I2
Cut Grade ...................................................................... Fair - Very Good
Additional Grading Characteristics
Polish ............................................................................. Good - Very Good
Symmetry ........................................................................ Fair - Very Good
Girdle ............................................................. Slightly Thick - Very Thick
Fluorescence ........................................................................................ None
Comments :
Total 2 stones.
Carat weight each stone: 0.22 ct. & 0.22 ct.
These diamonds have been treated by one or several
processes to improve their colors..
=====================================================================================
IGI Report Number #45967798
Report Date : 26 June, 2025
REBZ-XMZ (B)
=======================================================================================
ALGT Diamond Grading Report
Identification ................................................................. Natural Diamond
Shape and Cutting Style ............................................. Round Brilliant
Measurements1 ............................................... 3.84 - 3.87 x 2.34 mm
Measurements2 ............................................... 3.78 - 3.86 x 2.41 mm
Grading Results
Total Carat Weight ................................................................ 0.44 Carat
Color Grade .................................................................. Fancy Vivid Blue
Color Origin .................................................................................... Treated
Clarity Grade .............................................................................................. I2
Cut Grade ...................................................................... Fair - Very Good
Additional Grading Characteristics
Polish ............................................................................. Good - Very Good
Symmetry ........................................................................ Fair - Very Good
Girdle ............................................................. Slightly Thick - Very Thick
Fluorescence ........................................................................................ None
Comments :
Total 2 stones.
Carat weight each stone: 0.22 ct. & 0.22 ct.
These diamonds have been treated by one or several
processes to improve their colors..
=====================================================================================
Details
Natural fancy colour
Blue
Diamond type
Colour-treated
Lab report number
45967798
Fancy colour intensity
Fancy vivid
Number of diamonds
2
Total carat weight
0.44
Cut grade
Fair, Very good
Diamond Clarity Grade
I2
Symmetry
Fair, Very good
Polish
Good, Very good
Girdle
Slightly thick, Very thick
Laboratory Report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
Yes
Laser Engraved
No
Weight
0.90-0.99
Shape
Round
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.
