1 pcs Diamond (Natural coloured) - 2.55 ct - Cushion - Fancy deep Greyish, Greenish Yellow - SI2 - International Gemological Institute (IGI)
02
days
09
hours
48
minutes
36
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Current bid
€ 750
Reserve price not met
Expert
Selected by Alberto Fidalgo
Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.
Retail Estimate € 14,000 - € 17,000
11 other people are watching this object
 Bidder 4590 | €750 | |
|---|---|---|
 Bidder 6034 | €3 | |
 Bidder 5708 | €2 | |
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2.55 ct natural Fancy Deep Grayish Green Yellow cushion‑modified brilliant diamond, SI2 clarity, IGI certified (report 728569618), no fluorescence, Very Good polish, Excellent symmetry, dimensions 7.74 × 7.05 × 5.05 mm, delivered in sealed IGI blister.
AI-assisted summary
Description from the seller
2.55 ct natural fancy deep grayish green yellow – cushion modified brilliant – IGI certified
Up for auction is a remarkable 2.55-carat natural diamond, graded by IGI as Natural Fancy Deep Grayish Green Yellow — an extremely rare and highly desirable combination of deep green, yellow, and subtle gray tones that gives the stone its unique character and depth.
This diamond is not just a gemstone — it’s a collector’s item, perfect for investors seeking certified fancy color diamonds with strong individuality and long-term value.
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IGI Certificate Details
* **IGI Report:** 728569618
* Date of Issue: September 28, 2025
* **Carat weight:** 2.55 ct
* **Color Grade:** Natural Fancy Deep Grayish Green Yellow
* **Clarity:** SI2
* **Cut Style:** Cushion Modified Brilliant
* **Measurements:** 7.74 × 7.05 × 5.05 mm
No content provided to translate.
Additional grading information
Very good
* **Symmetry:** Excellent
Fluorescence: None
* Identification features: cloud, feather
No content provided to translate.
About the Diamond
This diamond displays an exceptionally rare deep color — a rich blend of green and yellow with a grayish undertone, creating a distinctive “olive gold” appearance that changes character depending on the light and viewing angle.
The cushion modified brilliant cut enhances the stone’s brilliance and fire while maintaining an elegant, timeless profile.
No content provided to translate.
Why This Stone Stands Out
IGI-certified natural fancy color
Rare Fancy Deep intensity
No fluorescence — highly sought after.
Strong, saturated green-yellow hue with grayish depth.
Ideal for high-end jewelry or long-term investment.
Beautiful face-up appearance and excellent symmetry.
No content provided to translate.
Shipping
The diamond will be delivered in its original IGI sealed blister, safely packaged, and shipped with full tracking information.
No content provided to translate.
2.55 ct natural fancy deep grayish green yellow – cushion modified brilliant – IGI certified
Up for auction is a remarkable 2.55-carat natural diamond, graded by IGI as Natural Fancy Deep Grayish Green Yellow — an extremely rare and highly desirable combination of deep green, yellow, and subtle gray tones that gives the stone its unique character and depth.
This diamond is not just a gemstone — it’s a collector’s item, perfect for investors seeking certified fancy color diamonds with strong individuality and long-term value.
No content provided to translate.
IGI Certificate Details
* **IGI Report:** 728569618
* Date of Issue: September 28, 2025
* **Carat weight:** 2.55 ct
* **Color Grade:** Natural Fancy Deep Grayish Green Yellow
* **Clarity:** SI2
* **Cut Style:** Cushion Modified Brilliant
* **Measurements:** 7.74 × 7.05 × 5.05 mm
No content provided to translate.
Additional grading information
Very good
* **Symmetry:** Excellent
Fluorescence: None
* Identification features: cloud, feather
No content provided to translate.
About the Diamond
This diamond displays an exceptionally rare deep color — a rich blend of green and yellow with a grayish undertone, creating a distinctive “olive gold” appearance that changes character depending on the light and viewing angle.
The cushion modified brilliant cut enhances the stone’s brilliance and fire while maintaining an elegant, timeless profile.
No content provided to translate.
Why This Stone Stands Out
IGI-certified natural fancy color
Rare Fancy Deep intensity
No fluorescence — highly sought after.
Strong, saturated green-yellow hue with grayish depth.
Ideal for high-end jewelry or long-term investment.
Beautiful face-up appearance and excellent symmetry.
No content provided to translate.
Shipping
The diamond will be delivered in its original IGI sealed blister, safely packaged, and shipped with full tracking information.
No content provided to translate.
Details
Lab report number
728569618
Diamond type
Natural coloured
Natural fancy colour
Yellow
Number of diamonds
1
Fancy colour intensity
Fancy deep
Total carat weight
2.55
Fancy colour overtone
Greenish, Greyish
Diamond Clarity Grade
SI2
Symmetry
Excellent
Polish
Very good
Laboratory Report
International Gemological Institute (IGI)
Sealed by laboratory
Yes
Laser Engraved
No
Weight
2.00-2.99
Shape
Cushion
Cutting style
Modified 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.
