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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6555010552

Certificate GIA 6555010552

Diamond specifications and retailer prices

From $4,023 CAD
HK$22,500 HKD
As of October 31, 2026
Save $2,052 CAD (34%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,725 CAD at MOH London · As of October 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555010552. Listed at 14 retailers as of October 31, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555010552
Dimensions7.62 × 6.09 × 4.17 mm
L/W Ratio1.25
Top View
7.62 mm6.09 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555010552
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.5%

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: $8,725 CAD|Low: $3,987 CAD|High: $9,420 CAD|Avg: $5,421 CAD|-7.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 7$4,023 CAD
Retailer 5$4,027 CAD
Retailer 2$4,164 CAD
Retailer 11$4,309 CAD
Retailer 12$4,331 CAD
Retailer 14$4,615 CAD
Retailer 4$4,859 CAD
Retailer 3$4,945 CAD
Retailer 10$5,042 CAD
Retailer 6$5,402 CAD
Retailer 9$5,423 CAD
Retailer 8$6,075 CAD
Retailer 13$8,385 CAD
MOH London$8,725 CAD

27 data points across 14 retailers

14 retailers$4,023 CAD to $6,075 CAD

A
Cheapest Retailer
-
$4,023 CAD
HK$22,500 HKD
A
Retailer 2
-
$4,027 CAD
$2,883 USD
View
A
Retailer 3
-
$4,164 CAD
$2,981 USD
View
Final sale: no returns
A
Retailer 4
-
$4,309 CAD
$3,085 USD
View
A
Retailer 5
-
$4,331 CAD
$3,101 USD
View
A
Retailer 6
-
$4,615 CAD
$3,304 USD
View
A
Retailer 7
-
$4,859 CAD
$3,479 USD
View
A
Retailer 8
-
$4,945 CAD
$3,540 USD
View
A
Retailer 9
-
$5,042 CAD
£2,842 GBP
View
A
Retailer 10
-
$5,423 CAD
£3,057 GBP
View
A
Retailer 11
-
$5,873 CAD
A$6,468 AUD
View
A
Retailer 12
-
$6,075 CAD
€4,142 EUR
View
Retailer 13
-
$8,385 CAD
$6,003 USD
View
Price last confirmed 8 days ago
Most Expensive
MOH London
01783FD08 · Oct 21
$8,725 CAD
£4,918 GBP
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from $4,023 CADSave up to $2,052 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
$4,023 CAD