No Reserve Price - 1 pcs Diamond (Natural) - 1.70 ct - Round - J - I1 - Gemewizard Gemological Laboratory (GWLab)

00
days
06
hours
42
minutes
32
seconds
Current bid
€ 332
No reserve price
Alberto Fidalgo
Expert
Selected by Alberto Fidalgo

Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.

Retail Estimate  € 5,500 - € 6,800
30 other people are watching this object
atBidder 6822 €332
usBidder 9350 €312
atBidder 6822 €281

Catawiki Buyer Protection

Your payment’s safe with us until you receive your object.View details

Trustpilot 4.4 | 121798 reviews

Rated Excellent on Trustpilot.

Natural 1.70 carat round brilliant diamond with J color I1 clarity, GWLab certificate 255708441036, sealed for authenticity and strong fluorescence.

AI-assisted summary

Description from the seller

natural diamond 1.70ct round J-I1 with GWLAB certificate sealed nummber 255708441036

Certificate details
Certificate No. 255708441036
July 22, 2025
Weight: 1.70 carats
Shape and cut: Round Brilliant
• Dimensions: 7.44 × 7.40 × 4.77 mm
• Color: J (white with a slight warm tone, very bright)
Purity: I1 (inclusions visible only with a 10x lens, not to the naked eye)
Good
• Politura: Very Good
Simmetria: Very Good
• Fluorescence: Strong
Nuance of Gray

natural diamond 1.70ct round J-I1 with GWLAB certificate sealed nummber 255708441036

Certificate details
Certificate No. 255708441036
July 22, 2025
Weight: 1.70 carats
Shape and cut: Round Brilliant
• Dimensions: 7.44 × 7.40 × 4.77 mm
• Color: J (white with a slight warm tone, very bright)
Purity: I1 (inclusions visible only with a 10x lens, not to the naked eye)
Good
• Politura: Very Good
Simmetria: Very Good
• Fluorescence: Strong
Nuance of Gray

Details

Lab report number
255708441036
Diamond type
Natural
Number of diamonds
1
Total carat weight
1.70
Cut grade
Good
Diamond Clarity Grade
I1
Diamond Colour Grade
J
Fluorescence
Strong fluorescence
Symmetry
Very good
Polish
Very good
Laboratory Report
Gemewizard Gemological Laboratory (GWLab)
Sealed by laboratory
Yes
Laser Engraved
No
Shape
Round
Cutting style
Brilliant cut
Sold by
SwedenVerified
Private

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.

Similar objects

For you in

Diamonds