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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

GD • K/SI2 • GIA 6562373069

Certificate GIA 6562373069

Diamond specifications and retailer prices

From $3,384 CAD
As of November 6, 2026
Save $1,425 CAD (30%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,809 CAD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6562373069. Listed at 6 retailers as of October 31, 2026, with prices from $3,384 to $4,809, a $1,425 spread on the same certified stone. Blue Nile lists it at $4,809. 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
K
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562373069
Dimensions7.77 × 5.89 × 3.98 mm
L/W Ratio1.32
Top View
7.77 mm5.89 mm1.51 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562373069
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

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: Nov 6
Current: $4,809 CAD|Low: $3,348 CAD|High: $5,220 CAD|Avg: $4,154 CAD|-1.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$3,384 CAD
Retailer 2$3,419 CAD
Retailer 6$3,903 CAD
Retailer 5$4,241 CAD
Retailer 4$4,699 CAD
Blue Nile$4,809 CAD

42 data points across 6 retailers

6 retailers$3,384 CAD to $4,809 CAD

A
Cheapest Retailer
-
$3,384 CAD
A
Retailer 2
-
$3,419 CAD
View
Retailer 3
-
$3,903 CAD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$4,241 CAD
View
Retailer 5
-
$4,699 CAD
View
Price last confirmed 10 days ago
Most Expensive
B+
Blue Nile
30380905 · Oct 31
$4,809 CAD
$3,419 USD
View
5 more retailers have this diamond
Prices start from $3,384 CADSave up to $1,425 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
$3,384 CAD