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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2557386199

Certificate GIA 2557386199

Diamond specifications and retailer prices

From $4,698 CAD
As of November 6, 2026
Save $5,379 CAD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,077 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G 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 2557386199. Listed at 10 retailers as of November 4, 2026, with prices from $4,698 to $10,077, a $5,379 spread on the same certified stone. MOH London lists it at $10,077. 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

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.68°
OriginNatural
Grading LabGIA
CertificateGIA 2557386199
Dimensions7.59 × 5.90 × 4.09 mm
L/W Ratio1.29
Key to symbols
Crystal, Needle
Top View
7.59 mm5.90 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557386199
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 36.68°Culet: NoneDepth 69.3%

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 6
Current: $10,077 CAD|Low: $4,681 CAD|High: $11,451 CAD|Avg: $6,906 CAD|-11.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$4,698 CAD
Retailer 5$5,487 CAD
Retailer 7$5,636 CAD
Retailer 4$5,813 CAD
Retailer 2$5,842 CAD
Retailer 8$6,757 CAD
Retailer 3$7,251 CAD
Retailer 9$7,259 CAD
MOH London$10,077 CAD

33 data points across 9 retailers

10 retailers$4,698 CAD to $10,077 CAD

A
Cheapest Retailer
-
$4,698 CAD
A
Retailer 2
-
$5,487 CAD
View
A
Retailer 3
-
$5,636 CAD
View
A
Retailer 4
-
$5,813 CAD
View
A
Retailer 5
-
$5,842 CAD
View
A
Retailer 6
-
$6,757 CAD
View
A
Retailer 7
-
$7,251 CAD
View
A
Retailer 8
-
$7,259 CAD
View
Final sale: no returns
B+
Retailer 9
-
$7,312 CAD
View
Most Expensive
B+
MOH London
A5213C48E · Nov 4
$10,077 CAD
£5,641 GBP
View
9 more retailers have this diamond
Prices start from $4,698 CADSave up to $5,379 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
1.51ct Cushion
$4,698 CAD