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Cushion|Natural|GIA

2.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1499040947

Certificate GIA 1499040947

Diamond specifications and retailer prices

From €26,551 EUR
$29,663 USD
As of October 31, 2026
Save €7,056 EUR (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €33,607 EUR at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

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 1499040947. Listed at 3 retailers as of October 31, 2026, with prices from €26,551 to €33,607, a €7,056 spread on the same certified stone. 77 Diamonds lists it at €33,607. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1499040947
Dimensions9.26 × 7.11 × 4.87 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
Inscription(s): GIA 1499040947 Pinpoints are not shown.
Top View
9.26 mm7.11 mm2.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1499040947
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCuletDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €33,607 EUR|Low: €26,303 EUR|High: €33,949 EUR|Avg: €29,613 EUR|+0.9%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2€26,551 EUR
Retailer 3€28,661 EUR
77 Diamonds€33,607 EUR

33 data points across 3 retailers

3 retailers€26,551 EUR to €33,607 EUR

B+
Cheapest Retailer
-
€26,551 EUR
$29,663 USD
B
Retailer 2
-
€28,661 EUR
$32,021 USD
View
Most Expensive
B
77 Diamonds
CUSMBBRNVCFFU · Oct 31
€33,607 EUR
£29,564 GBP
View
2 more retailers have this diamond
Prices start from €26,551 EURSave up to €7,056 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.

B+
2.51ct Cushion
€26,551 EUR