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Cushion|Natural|GIA

2.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1553315263

Certificate GIA 1553315263

Diamond specifications and retailer prices

From $17,602 CAD
$12,601 USD
As of November 1, 2026
Save $12,881 CAD (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $30,484 CAD 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 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 1553315263. Listed at 5 retailers as of October 29, 2026, with prices from $17,602 to $30,484, a $12,881 spread on the same certified stone. MOH London lists it at $30,484. 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 1553315263
Dimensions8.44 × 6.75 × 4.77 mm
L/W Ratio1.25
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
8.44 mm6.75 mm2.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553315263
Side View
Table 62.0%CrownGirdlePavilionCulet: NoneDepth 70.6%

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 1
Current: $30,484 CAD|Low: $16,021 CAD|High: $30,484 CAD|Avg: $21,819 CAD|+1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$16,021 CAD
Retailer 2$17,602 CAD
Retailer 6$19,151 CAD
Retailer 3$19,416 CAD
Retailer 8$21,153 CAD
Retailer 4$24,426 CAD
Retailer 7$24,459 CAD
MOH London$30,484 CAD

17 data points across 8 retailers

5 retailers$17,602 CAD to $30,484 CAD

A
Cheapest Retailer
-
$17,602 CAD
$12,601 USD
A
Retailer 2
-
$19,151 CAD
$13,710 USD
View
A
Retailer 3
-
$19,416 CAD
$13,899 USD
View
B+
Retailer 4
-
$24,426 CAD
€16,653 EUR
View
Most Expensive
B
MOH London
C24107470 · Oct 29
$30,484 CAD
£17,183 GBP
View
4 more retailers have this diamond
Prices start from $17,602 CADSave up to $12,881 CAD

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
$17,602 CAD