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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1232947260

Certificate GIA 1232947260

Diamond specifications and retailer prices

From $4,783 CAD
HK$26,600 HKD
As of October 29, 2026
Save $5,698 CAD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,481 CAD at MOH London · As of October 26, 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 I 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 1232947260. Listed at 9 retailers as of October 26, 2026, with prices from $4,783 to $10,481, a $5,698 spread on the same certified stone. MOH London lists it at $10,481. 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
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.31°
OriginNatural
Grading LabGIA
CertificateGIA 1232947260
Dimensions7.81 × 5.96 × 4.04 mm
L/W Ratio1.31
Key to symbols
Feather, Needle, Pinpoint, Cloud
Top View
7.81 mm5.96 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232947260
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 35.31°Culet: NoneDepth 67.8%

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 29
Current: $10,481 CAD|Low: $4,783 CAD|High: $11,601 CAD|Avg: $7,102 CAD|-9.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 6$4,783 CAD
Retailer 3$5,606 CAD
Retailer 8$5,952 CAD
Retailer 7$6,131 CAD
Retailer 2$6,270 CAD
Retailer 4$6,988 CAD
Retailer 5$7,482 CAD
MOH London$10,481 CAD

34 data points across 8 retailers

9 retailers$4,783 CAD to $10,481 CAD

A
Cheapest Retailer
-
$4,783 CAD
HK$26,600 HKD
A
Retailer 2
-
$5,606 CAD
€3,801 EUR
View
A
Retailer 3
-
$5,952 CAD
$4,237 USD
View
A
Retailer 4
-
$6,131 CAD
SGD 5,898 SGD
View
A
Retailer 5
-
$6,270 CAD
£3,514 GBP
View
B+
Retailer 6
-
$6,983 CAD
A$7,648 AUD
View
B+
Retailer 7
-
$6,988 CAD
$4,975 USD
View
B+
Retailer 8
-
$7,482 CAD
€5,073 EUR
View
Most Expensive
B
MOH London
8D2B6642B · Oct 26
$10,481 CAD
£5,875 GBP
View
8 more retailers have this diamond
Prices start from $4,783 CADSave up to $5,698 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
$4,783 CAD