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Cushion|Natural|GIA

2.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1353717609

Certificate GIA 1353717609

Diamond specifications and retailer prices

From $13,086 USD
₹1,246,244 INR
As of October 27, 2026
Save $8,739 USD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $21,825 USD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1353717609. Listed at 7 retailers as of October 27, 2026, with prices from $13,086 to $21,825, a $8,739 spread on the same certified stone. MOH London lists it at $21,825. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1353717609
Dimensions7.98 × 7.28 × 5.00 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Top View
7.98 mm7.28 mm2.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1353717609
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 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: Oct 27
Current: $21,825 USD|Low: $13,021 USD|High: $22,088 USD|Avg: $16,677 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$13,086 USD
Retailer 2$15,077 USD
Retailer 5$15,405 USD
Retailer 3$17,607 USD
MOH London$21,825 USD

46 data points across 5 retailers

7 retailers$13,086 USD to $21,825 USD

A
Cheapest Retailer
-
$13,086 USD
₹1,246,244 INR
A
Retailer 2
-
$13,215 USD
View
A
Retailer 3
-
$13,310 USD
A$20,477 AUD
View
A
Retailer 4
-
$15,077 USD
£11,871 GBP
View
A
Retailer 5
-
$15,405 USD
View
B+
Retailer 6
-
$17,607 USD
€16,769 EUR
View
Most Expensive
B+
MOH London
2558BCE32 · Nov 1
$21,825 USD
£17,185 GBP
View
6 more retailers have this diamond
Prices start from $13,086 USDSave up to $8,739 USD

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
$13,086 USD