Cushion|Natural|GIA

2.51ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 2547526379

Certificate GIA 2547526379

Diamond specifications and retailer prices

From €21,918 EUR
HK$191,300 HKD
As of October 31, 2026
Save €16,308 EUR (43%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €38,226 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547526379. Listed at 19 retailers as of October 31, 2026, with prices from €21,918 to €38,226, a €16,308 spread on the same certified stone. MOH London lists it at €38,226. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle47.86°
OriginNatural
Grading LabGIA
CertificateGIA 2547526379
Dimensions10.09 × 6.39 × 4.45 mm
L/W Ratio1.58
Top View
10.09 mm6.39 mm2.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547526379
Side View
Table 63.0%Crown 37.9°Girdle: THN-STKPavilion 47.86°Culet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €38,226 EUR|Low: €21,918 EUR|High: €39,605 EUR|Avg: €26,676 EUR|-3.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 3€21,918 EUR
Retailer 13€21,967 EUR
Retailer 17€22,285 EUR
Retailer 14€23,456 EUR
Retailer 16€23,710 EUR
Retailer 10€23,809 EUR
Retailer 15€23,911 EUR
Retailer 7€24,850 EUR
Retailer 11€24,893 EUR
Retailer 8€25,285 EUR
Retailer 9€25,406 EUR
Retailer 6€26,565 EUR
Retailer 2€26,997 EUR
Retailer 4€29,664 EUR
Retailer 5€29,698 EUR
Retailer 12€33,845 EUR
MOH London€38,226 EUR

23 data points across 17 retailers

19 retailers€21,918 EUR to €38,226 EUR

A
Cheapest Retailer
-
€21,918 EUR
HK$191,300 HKD
A
Retailer 2
-
€21,967 EUR
$24,542 USD
View
A
Retailer 3
-
€22,285 EUR
$24,897 USD
View
B+
Retailer 4
-
€23,456 EUR
$26,205 USD
View
Final sale: no returns
B+
Retailer 5
-
€23,710 EUR
₹2,522,719 INR
View
B+
Retailer 6
-
€23,809 EUR
$26,600 USD
View
B+
Retailer 7
-
€23,911 EUR
$26,714 USD
View
B+
Retailer 8
-
€24,850 EUR
$27,763 USD
View
B+
Retailer 9
-
€24,893 EUR
£21,898 GBP
View
B+
Retailer 10
-
€25,285 EUR
$28,249 USD
View
Retailer 11
-
€25,406 EUR
A$43,668 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
€26,565 EUR
$29,679 USD
View
B+
Retailer 13
-
€26,997 EUR
£23,749 GBP
View
B
Retailer 14
-
€27,486 EUR
$30,707 USD
View
B+
Retailer 15
-
€28,401 EUR
$31,730 USD
View
B+
Retailer 16
-
€29,664 EUR
$33,140 USD
View
B+
Retailer 17
-
€29,698 EUR
View
B
Retailer 18
-
€33,845 EUR
ZAR 610,853 ZAR
View
Most Expensive
B
MOH London
F992AC5A5 · Nov 1
€38,226 EUR
£33,627 GBP
View
18 more retailers have this diamond
Prices start from €21,918 EURSave up to €16,308 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Cushion
€21,918 EUR