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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 5436497455

Certificate GIA 5436497455

Diamond specifications and retailer prices

From $4,284 CAD
$3,067 USD
As of October 31, 2026
Save $5,088 CAD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,372 CAD at MOH London · As of October 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5436497455. Listed at 20 retailers as of October 29, 2026, with prices from $4,284 to $9,372, a $5,088 spread on the same certified stone. MOH London lists it at $9,372. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5436497455
Dimensions6.39 × 6.28 × 4.34 mm
L/W Ratio1.02
Top View
6.39 mm6.28 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5436497455
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.1%

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: $9,372 CAD|Low: $4,284 CAD|High: $9,434 CAD|Avg: $5,812 CAD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$4,284 CAD
Retailer 10$4,379 CAD
Retailer 11$4,661 CAD
Retailer 9$4,846 CAD
Retailer 7$5,050 CAD
Retailer 2$5,252 CAD
Retailer 5$5,702 CAD
Retailer 3$5,977 CAD
Retailer 4$6,306 CAD
Retailer 6$6,852 CAD
MOH London$9,372 CAD

34 data points across 11 retailers

20 retailers$4,284 CAD to $9,372 CAD

A
Cheapest Retailer
-
$4,284 CAD
$3,067 USD
A
Retailer 2
-
$4,379 CAD
$3,135 USD
View
B+
Retailer 3
-
$4,483 CAD
$3,209 USD
View
B+
Retailer 4
-
$4,661 CAD
$3,337 USD
View
Final sale: no returns
A
Retailer 5
-
$4,846 CAD
$3,469 USD
View
B+
Retailer 6
-
$4,854 CAD
$3,475 USD
View
B+
Retailer 7
-
$4,996 CAD
$3,577 USD
View
B+
Retailer 8
-
$5,050 CAD
$3,615 USD
View
B+
Retailer 9
-
$5,055 CAD
$3,619 USD
View
B+
Retailer 10
-
$5,252 CAD
£2,961 GBP
View
B+
Retailer 11
-
$5,398 CAD
$3,864 USD
View
B+
Retailer 12
-
$5,702 CAD
£3,214 GBP
View
B+
Retailer 13
-
$5,713 CAD
$4,090 USD
View
B+
Retailer 14
-
$5,713 CAD
$4,090 USD
View
B+
Retailer 15
-
$5,909 CAD
$4,230 USD
View
Retailer 16
-
$5,977 CAD
A$6,583 AUD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$6,306 CAD
€4,299 EUR
View
Retailer 18
-
$6,310 CAD
$4,517 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$6,852 CAD
ZAR 79,243 ZAR
View
Most Expensive
B
MOH London
595F6FEA4 · Oct 29
$9,372 CAD
£5,283 GBP
View
19 more retailers have this diamond
Prices start from $4,284 CADSave up to $5,088 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
$4,284 CAD