Cushion|Natural|GIA

2.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5546870103

Certificate GIA 5546870103

Diamond specifications and retailer prices

From €14,779 EUR
£13,001 GBP
As of November 1, 2026
Save €9,344 EUR (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €24,123 EUR at MOH London · As of October 29, 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 5546870103. Listed at 6 retailers as of October 29, 2026, with prices from €14,779 to €24,123, a €9,344 spread on the same certified stone. MOH London lists it at €24,123. 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 angle36.9°
Pavilion angle31.16°
OriginNatural
Grading LabGIA
CertificateGIA 5546870103
Dimensions9.12 × 7.00 × 4.60 mm
L/W Ratio1.30
Top View
9.12 mm7.00 mm2.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5546870103
Side View
Table 60.0%Crown 36.9°Girdle: MED-THKPavilion 31.16°Culet: NoneDepth 65.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €24,123 EUR|Low: €14,656 EUR|High: €25,101 EUR|Avg: €18,284 EUR|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2€14,779 EUR
Retailer 5€16,113 EUR
Retailer 4€16,156 EUR
Retailer 3€16,997 EUR
Retailer 7€17,338 EUR
Retailer 6€17,777 EUR
Retailer 8€19,429 EUR
MOH London€24,123 EUR

39 data points across 8 retailers

6 retailers€14,779 EUR to €24,123 EUR

A
Cheapest Retailer
-
€14,779 EUR
£13,001 GBP
Retailer 2
-
€16,113 EUR
A$27,695 AUD
View
Price last confirmed 8 days ago
A
Retailer 3
-
€16,156 EUR
$18,050 USD
View
A
Retailer 4
-
€16,997 EUR
£14,952 GBP
View
A
Retailer 5
-
€17,777 EUR
$19,861 USD
View
Most Expensive
B+
MOH London
5EC1A65F1 · Oct 29
€24,123 EUR
£21,221 GBP
View
5 more retailers have this diamond
Prices start from €14,779 EURSave up to €9,344 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
€14,779 EUR