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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6545505052

Certificate GIA 6545505052

Diamond specifications and retailer prices

From $5,300 CAD
$3,794 USD
As of November 2, 2026
Save $5,783 CAD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,083 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 H 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 6545505052. Listed at 20 retailers as of November 1, 2026, with prices from $5,300 to $11,083, a $5,783 spread on the same certified stone. MOH London lists it at $11,083. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6545505052
Dimensions6.54 × 6.46 × 4.50 mm
L/W Ratio1.01
Top View
6.54 mm6.46 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6545505052
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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 2
Current: $11,083 CAD|Low: $5,300 CAD|High: $11,216 CAD|Avg: $7,209 CAD|-0.1%
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 9$5,300 CAD
Retailer 7$5,540 CAD
Retailer 10$5,965 CAD
Retailer 8$6,303 CAD
Retailer 11$6,665 CAD
Retailer 4$6,919 CAD
Retailer 6$7,014 CAD
Retailer 3$7,680 CAD
Retailer 2$7,872 CAD
Retailer 5$8,553 CAD
MOH London$11,083 CAD

44 data points across 11 retailers

20 retailers$5,300 CAD to $11,083 CAD

A
Cheapest Retailer
-
$5,300 CAD
$3,794 USD
A
Retailer 2
-
$5,437 CAD
$3,892 USD
View
A
Retailer 3
-
$5,498 CAD
$3,936 USD
View
A
Retailer 4
-
$5,540 CAD
$3,966 USD
View
Final sale: no returns
A
Retailer 5
-
$5,561 CAD
$3,981 USD
View
A
Retailer 6
-
$5,952 CAD
View
A
Retailer 7
-
$5,965 CAD
$4,270 USD
View
A
Retailer 8
-
$6,134 CAD
$4,391 USD
View
B+
Retailer 9
-
$6,303 CAD
$4,512 USD
View
B+
Retailer 10
-
$6,408 CAD
$4,587 USD
View
B+
Retailer 11
-
$6,637 CAD
$4,751 USD
View
B+
Retailer 12
-
$6,665 CAD
$4,771 USD
View
B+
Retailer 13
-
$6,919 CAD
£3,900 GBP
View
Retailer 14
-
$7,014 CAD
A$7,725 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
$7,680 CAD
$5,498 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
$7,872 CAD
€5,367 EUR
View
B+
Retailer 17
-
$8,010 CAD
$5,734 USD
View
B
Retailer 18
-
$8,553 CAD
ZAR 98,910 ZAR
View
B
Retailer 19
-
$10,070 CAD
$7,209 USD
View
Most Expensive
B
MOH London
8012FE3A7 · Nov 1
$11,083 CAD
£6,247 GBP
View
19 more retailers have this diamond
Prices start from $5,300 CADSave up to $5,783 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
$5,300 CAD