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Cushion|Natural|GIA

2.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1545932950

Certificate GIA 1545932950

Diamond specifications and retailer prices

From €17,593 EUR
$19,655 USD
As of November 2, 2026
Save €7,906 EUR (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €25,499 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 1545932950. Listed at 5 retailers as of November 1, 2026, with prices from €17,593 to €25,499, a €7,906 spread on the same certified stone. MOH London lists it at €25,499. 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
SymmetryExcellent
FluorescenceStrong
Crown angle39.97°
Pavilion angle30.49°
OriginNatural
Grading LabGIA
CertificateGIA 1545932950
Dimensions8.84 × 6.81 × 4.67 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Needle
Top View
8.84 mm6.81 mm2.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1545932950
Side View
Table 65.0%Crown 39.97°GirdlePavilion 30.49°CuletDepth 68.6%

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: Nov 2
Current: €25,499 EUR|Low: €10,874 EUR|High: €26,400 EUR|Avg: €18,837 EUR|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8€10,874 EUR
Retailer 5€17,362 EUR
Retailer 4€17,593 EUR
Retailer 2€18,007 EUR
Retailer 3€18,768 EUR
Retailer 7€20,353 EUR
Retailer 6€20,460 EUR
MOH London€25,499 EUR

36 data points across 8 retailers

5 retailers€17,593 EUR to €25,499 EUR

Retailer 1
-
€17,362 EUR
A$29,841 AUD
Price last confirmed 29 days ago
A
Retailer 2
-
€17,593 EUR
$19,655 USD
View
A
Retailer 3
-
€18,007 EUR
£15,841 GBP
View
A
Retailer 4
-
€18,768 EUR
$20,968 USD
View
Most Expensive
B
MOH London
11D257389 · Nov 1
€25,499 EUR
£22,431 GBP
View
4 more retailers have this diamond
Prices start from €17,593 EURSave up to €7,906 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
€17,593 EUR