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Cushion|Natural|GIA

2.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1559675761

Certificate GIA 1559675761

Diamond specifications and retailer prices

From €18,383 EUR
As of November 6, 2026
11 retailers carry this diamond
Most expensive: €25,408 EUR at MOH London · As of October 26, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559675761. Listed at 11 retailers as of November 6, 2026. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.73°
OriginNatural
Grading LabGIA
CertificateGIA 1559675761
Dimensions9.09 × 7.10 × 4.96 mm
L/W Ratio1.28
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
9.09 mm7.10 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559675761
Side View
Table 66.0%CrownGirdle: MED-VTKPavilion 37.73°Culet: NoneDepth 69.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: €25,408 EUR|Low: €13,516 EUR|High: €25,646 EUR|Avg: €17,707 EUR|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 11€13,516 EUR
Retailer 5€15,302 EUR
Retailer 12€15,373 EUR
Retailer 8€15,639 EUR
Retailer 7€16,427 EUR
Retailer 3€16,832 EUR
Retailer 4€18,383 EUR
Retailer 6€18,540 EUR
Retailer 9€18,540 EUR
Retailer 10€19,158 EUR
Retailer 2€19,660 EUR
MOH London€25,408 EUR

26 data points across 12 retailers

11 retailers

Retailer 1
-
€13,516 EUR
Price last confirmed 21 days ago
Retailer 2
-
€15,302 EUR
View
Price last confirmed 12 days ago
Retailer 3
-
€15,373 EUR
View
Price last confirmed 26 days ago
Retailer 4
-
€15,639 EUR
View
Price last confirmed 14 days ago
Retailer 5
-
€15,998 EUR
View
Price last confirmed 11 days ago
B+
Retailer 6
-
€18,383 EUR
View
Retailer 7
-
€18,540 EUR
View
Price last confirmed 12 days ago
Retailer 8
-
€18,540 EUR
View
Price last confirmed 12 days ago
Retailer 9
-
€19,158 EUR
View
Price last confirmed 12 days ago
Retailer 10
-
€19,660 EUR
View
Price last confirmed 11 days ago
Most Expensive
MOH London
EECE8DF20 · Oct 26
€25,408 EUR
£22,337 GBP
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from €18,383 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
€18,383 EUR