No reserve price - 1 pcs Diamond (Natural) - 0.51 ct - Round - SI2 - International Gemological Institute (IGI)
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Current bid
€ 3
No reserve price
Expert
Selected by Alberto Fidalgo
Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.
Retail Estimate € 600 - € 700
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 Bidder 5826 | €3 |
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IGI-certified natural 0.51 ct round brilliant diamond, color Q-R, clarity SI2, cut Good with Good polish and Good symmetry, fluorescence None, report no. 733548662, sealed by laboratory.
AI-assisted summary
Description from the seller
Ultra-Rare 0.51 ct Natural Round Brilliant Diamond – Q-R Color | SI2 | IGI Certified
A remarkable opportunity to acquire a natural round brilliant diamond with a warm, elegant Q-R near-champagne tone. Stones in this color range are gaining strong demand among collectors and jewelry designers due to their soft vintage glow and impressive visual presence.
This diamond presents an ideal balance of beauty and value, offering exceptional brilliance for its color group. The SI2 clarity shows natural inclusions that remain unobtrusive to the eye, preserving a lively sparkle.
Certified by IGI, ensuring full authenticity, grading transparency, and international recognition.
Specifications
Carat Weight: 0.51 ct
Shape: Round Brilliant
Color Grade: Q-R
Clarity: SI2
Cut Grade: Good
Polish: Good
Symmetry: Good
Fluorescence: None
Measurements: 4.89 – 4.95 × 3.28 mm
Certification: IGI (Report No. 733548662)
Why This Diamond is Special
A rare warm Q-R natural tone, ideal for vintage-style jewelry or collectors seeking unique natural colors.
Internationally certified, ensuring safe investment and full grading transparency.
Perfect size for a solitaire ring, pendant, or as a center stone in a bespoke design.
Shipping & Handling
Ensuring the safety of your lots is our top priority.
We rely on trusted carriers such as FedEx / DHL for secure, fully tracked shipments using their fastest express methods.
Each diamond is carefully packed in a sealed, tamper-proof box to guarantee safe and prompt delivery.
Customs or import duties may apply depending on your country of residence.
For buyers in France, Portugal, and the Canary Islands, a customs broker may be required — all related costs are the buyer’s responsibility.
Israeli bidders: Loose diamonds and jewelry are shipped internationally only.
If the winning bidder cancels, they will bear all shipping and return import-duty expenses as specified by the seller.
Each shipment includes one item and is sent via DHL Express or FedEx — combined shipping is not available.
Discover more rare and collectible natural diamonds by visiting the seller’s page through a click on the seller’s name.
Ultra-Rare 0.51 ct Natural Round Brilliant Diamond – Q-R Color | SI2 | IGI Certified
A remarkable opportunity to acquire a natural round brilliant diamond with a warm, elegant Q-R near-champagne tone. Stones in this color range are gaining strong demand among collectors and jewelry designers due to their soft vintage glow and impressive visual presence.
This diamond presents an ideal balance of beauty and value, offering exceptional brilliance for its color group. The SI2 clarity shows natural inclusions that remain unobtrusive to the eye, preserving a lively sparkle.
Certified by IGI, ensuring full authenticity, grading transparency, and international recognition.
Specifications
Carat Weight: 0.51 ct
Shape: Round Brilliant
Color Grade: Q-R
Clarity: SI2
Cut Grade: Good
Polish: Good
Symmetry: Good
Fluorescence: None
Measurements: 4.89 – 4.95 × 3.28 mm
Certification: IGI (Report No. 733548662)
Why This Diamond is Special
A rare warm Q-R natural tone, ideal for vintage-style jewelry or collectors seeking unique natural colors.
Internationally certified, ensuring safe investment and full grading transparency.
Perfect size for a solitaire ring, pendant, or as a center stone in a bespoke design.
Shipping & Handling
Ensuring the safety of your lots is our top priority.
We rely on trusted carriers such as FedEx / DHL for secure, fully tracked shipments using their fastest express methods.
Each diamond is carefully packed in a sealed, tamper-proof box to guarantee safe and prompt delivery.
Customs or import duties may apply depending on your country of residence.
For buyers in France, Portugal, and the Canary Islands, a customs broker may be required — all related costs are the buyer’s responsibility.
Israeli bidders: Loose diamonds and jewelry are shipped internationally only.
If the winning bidder cancels, they will bear all shipping and return import-duty expenses as specified by the seller.
Each shipment includes one item and is sent via DHL Express or FedEx — combined shipping is not available.
Discover more rare and collectible natural diamonds by visiting the seller’s page through a click on the seller’s name.
Details
Lab report number
733548662
Diamond type
Natural
Number of diamonds
1
Total carat weight
0.51
Cut grade
Good
Diamond Clarity Grade
SI2
Fluorescence
None
Symmetry
Good
Polish
Good
Laboratory Report
International Gemological Institute (IGI)
Sealed by laboratory
Yes
Laser Engraved
No
Weight
0.50-0.69
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.
