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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6551533295

Certificate GIA 6551533295

Diamond specifications and retailer prices

From $4,935 CAD
HK$27,600 HKD
As of November 1, 2026
Save $7,075 CAD (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,010 CAD at Queensmith · As of October 28, 2026
View at Queensmith

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 6551533295. Listed at 15 retailers as of October 28, 2026, with prices from $4,935 to $12,010, a $7,075 spread on the same certified stone. Queensmith lists it at $12,010. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551533295
Dimensions7.61 × 5.86 × 4.02 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.61 mm5.86 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551533295
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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 1
Current: $12,010 CAD|Low: $4,899 CAD|High: $12,081 CAD|Avg: $7,120 CAD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9$4,935 CAD
Retailer 2$5,280 CAD
Retailer 5$5,814 CAD
Retailer 3$6,085 CAD
Retailer 12$6,280 CAD
Retailer 6$6,388 CAD
Retailer 8$6,556 CAD
Retailer 11$6,593 CAD
Retailer 4$6,803 CAD
Retailer 13$6,978 CAD
Retailer 10$7,461 CAD
Retailer 7$10,501 CAD
Queensmith$12,010 CAD

24 data points across 13 retailers

15 retailers$4,935 CAD to $12,010 CAD

A
Cheapest Retailer
-
$4,935 CAD
HK$27,600 HKD
A
Retailer 2
-
$5,280 CAD
₹359,999 INR
View
A
Retailer 3
-
$5,814 CAD
SGD 5,624 SGD
View
B+
Retailer 4
-
$6,044 CAD
$4,327 USD
View
A
Retailer 5
-
$6,085 CAD
$4,356 USD
View
Final sale: no returns
B+
Retailer 6
-
$6,280 CAD
SGD 6,075 SGD
View
A
Retailer 7
-
$6,388 CAD
£3,601 GBP
View
B+
Retailer 8
-
$6,556 CAD
£3,695 GBP
View
B+
Retailer 9
-
$6,593 CAD
$4,720 USD
View
B+
Retailer 10
-
$6,772 CAD
A$7,458 AUD
View
B+
Retailer 11
-
$6,803 CAD
$4,870 USD
View
B+
Retailer 12
-
$6,978 CAD
$4,995 USD
View
B+
Retailer 13
-
$7,461 CAD
€5,087 EUR
View
B
Retailer 14
-
$10,501 CAD
£5,919 GBP
View
Most Expensive
B
Queensmith
6551533295 · Oct 28
$12,010 CAD
£6,770 GBP
View
14 more retailers have this diamond
Prices start from $4,935 CADSave up to $7,075 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
$4,935 CAD