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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231926496

Certificate GIA 2231926496

Diamond specifications and retailer prices

From $7,905 CAD
$5,659 USD
As of October 31, 2026
Save $7,233 CAD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $15,138 CAD at MOH London · As of November 1, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231926496. Listed at 14 retailers as of October 31, 2026, with prices from $7,905 to $15,138, a $7,233 spread on the same certified stone. MOH London lists it at $15,138. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Pavilion angle35.83°
OriginNatural
Grading LabGIA
CertificateGIA 2231926496
Dimensions7.45 × 5.87 × 4.09 mm
L/W Ratio1.27
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
7.45 mm5.87 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2231926496
Side View
Table 62.0%CrownGirdle: THK-VTKPavilion 35.83°Culet: NoneDepth 69.8%

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 31
Current: $15,138 CAD|Low: $7,879 CAD|High: $15,319 CAD|Avg: $10,616 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$7,905 CAD
Retailer 5$9,083 CAD
Retailer 8$9,083 CAD
Retailer 10$9,108 CAD
Retailer 2$10,240 CAD
Retailer 7$10,380 CAD
Retailer 6$10,472 CAD
Retailer 4$11,869 CAD
Retailer 3$13,345 CAD
MOH London$15,138 CAD

44 data points across 10 retailers

14 retailers$7,905 CAD to $15,138 CAD

A
Cheapest Retailer
-
$7,905 CAD
$5,659 USD
B+
Retailer 2
-
$8,581 CAD
$6,143 USD
View
B+
Retailer 3
-
$8,595 CAD
$6,153 USD
View
B+
Retailer 4
-
$8,701 CAD
$6,229 USD
View
B+
Retailer 5
-
$9,083 CAD
$6,502 USD
View
Final sale: no returns
B+
Retailer 6
-
$9,083 CAD
$6,502 USD
View
B+
Retailer 7
-
$9,108 CAD
$6,520 USD
View
B+
Retailer 8
-
$10,240 CAD
£5,772 GBP
View
B+
Retailer 9
-
$10,380 CAD
$7,431 USD
View
Retailer 10
-
$10,472 CAD
A$11,533 AUD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$11,869 CAD
€8,092 EUR
View
Retailer 12
-
$11,967 CAD
$8,567 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$13,345 CAD
ZAR 154,335 ZAR
View
Most Expensive
B
MOH London
75DE28E9A · Nov 1
$15,138 CAD
£8,533 GBP
View
13 more retailers have this diamond
Prices start from $7,905 CADSave up to $7,233 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
$7,905 CAD