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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

GD • G/SI2 • GIA 2556496790

Certificate GIA 2556496790

Diamond specifications and retailer prices

From $5,383 CAD
As of November 6, 2026
Save $6,067 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,540 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556496790. Listed at 15 retailers as of November 2, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556496790
Dimensions7.64 × 5.69 × 3.85 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.64 mm5.69 mm1.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556496790
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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 6
Current: $12,540 CAD|Low: $5,383 CAD|High: $12,594 CAD|Avg: $8,028 CAD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$5,383 CAD
Retailer 2$5,704 CAD
Retailer 6$6,338 CAD
Retailer 3$6,928 CAD
Retailer 5$7,079 CAD
Retailer 9$7,189 CAD
Retailer 4$8,091 CAD
Retailer 7$11,450 CAD
Queensmith$12,540 CAD

26 data points across 9 retailers

15 retailers$5,383 CAD to $11,450 CAD

A
Cheapest Retailer
-
$5,383 CAD
A
Retailer 2
-
$5,704 CAD
View
B+
Retailer 3
-
$6,338 CAD
View
B+
Retailer 4
-
$6,553 CAD
View
B+
Retailer 5
-
$6,635 CAD
View
Final sale: no returns
Retailer 6
-
$6,853 CAD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$6,928 CAD
View
B+
Retailer 8
-
$7,079 CAD
View
Retailer 9
-
$7,189 CAD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$7,312 CAD
View
B+
Retailer 11
-
$7,403 CAD
View
B+
Retailer 12
-
$7,582 CAD
View
B+
Retailer 13
-
$8,091 CAD
View
B
Retailer 14
-
$11,450 CAD
View
Most Expensive
Queensmith
2556496790 · Oct 28
$12,540 CAD
£7,020 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $5,383 CADSave up to $6,067 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
$5,383 CAD