1 pcs Diamond (Natural) - 0.51 ct - Oval - D (colourless) - SI1 - International Gemological Institute (IGI)
07
days
14
hours
20
minutes
46
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Current bid
€ 3
Reserve price not met
Expert
Selected by Alberto Fidalgo
Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.
Retail Estimate € 1,500 - € 1,800
 | €3 | |
|---|---|---|
| €2 | |
| €1 |
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Description from the seller
Natural Diamond 0.51 ct — Oval Brilliant Cut — Colour D (Exceptional) — IGI Certified
A stunning 0.51-carat natural diamond in an elegant oval brilliant cut, a much-loved shape celebrated for its brilliance and refined silhouette that captures light beautifully.
What truly sets this stone apart is its D colour grade — the very highest on the international scale, denoting an absolutely colourless, ice-white appearance. A D colour is rare and places this diamond at the very top of the colourless range.
Its SI1 clarity ensures a pleasing stone whose only noted feature is a discreet internal cloud. A Very Good polish and Very Slight fluorescence round out a bright, harmonious gem.
Detailed specifications:
Type: Natural diamond
Weight: 0.51 carat
Cut: Oval brilliant
Measurements: 6.21 × 4.63 × 2.77 mm
Colour: D (the highest grade)
Clarity: SI1
Polish: Very Good
Symmetry: Good
Fluorescence: Very Slight
Certification: IGI, report no. 786606073 (18 May 2026)
Perfect for a bespoke jewellery creation — an engagement ring, solitaire or pendant — this D-colour diamond offers exceptional rarity and purity of hue. Supplied with its IGI certificate.
Important information for bidders
Dear bidders, please have a good look at the photos before bidding. If you are not fully aware of what you bid on, or have any disagreement with the grading standard after you examined the lot, please consider not bidding.
Shipments are insured and tracked by the most reliable shipping companies, FedEx / DHL.
Please note, your country of residence may impose customs and import duties.
Chinese bidders: loose diamonds can only be shipped to Hong Kong.
Natural Diamond 0.51 ct — Oval Brilliant Cut — Colour D (Exceptional) — IGI Certified
A stunning 0.51-carat natural diamond in an elegant oval brilliant cut, a much-loved shape celebrated for its brilliance and refined silhouette that captures light beautifully.
What truly sets this stone apart is its D colour grade — the very highest on the international scale, denoting an absolutely colourless, ice-white appearance. A D colour is rare and places this diamond at the very top of the colourless range.
Its SI1 clarity ensures a pleasing stone whose only noted feature is a discreet internal cloud. A Very Good polish and Very Slight fluorescence round out a bright, harmonious gem.
Detailed specifications:
Type: Natural diamond
Weight: 0.51 carat
Cut: Oval brilliant
Measurements: 6.21 × 4.63 × 2.77 mm
Colour: D (the highest grade)
Clarity: SI1
Polish: Very Good
Symmetry: Good
Fluorescence: Very Slight
Certification: IGI, report no. 786606073 (18 May 2026)
Perfect for a bespoke jewellery creation — an engagement ring, solitaire or pendant — this D-colour diamond offers exceptional rarity and purity of hue. Supplied with its IGI certificate.
Important information for bidders
Dear bidders, please have a good look at the photos before bidding. If you are not fully aware of what you bid on, or have any disagreement with the grading standard after you examined the lot, please consider not bidding.
Shipments are insured and tracked by the most reliable shipping companies, FedEx / DHL.
Please note, your country of residence may impose customs and import duties.
Chinese bidders: loose diamonds can only be shipped to Hong Kong.
Details
Lab report number
786606073
Diamond type
Natural
Number of diamonds
1
Total carat weight
0.51
Cut grade
Very good
Diamond clarity grade
SI1
Diamond colour grade
D (colourless)
Fluorescence
Very slight fluorescence
Symmetry
Good
Polish
Very good
Laboratory report
International Gemological Institute (IGI)
Sealed by laboratory
Yes
Laser engraved
No
Weight
0.50-0.69
Shape
Oval
Cutting style
Brilliant cut
Sold by
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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.
