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Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2528970528

Certificate GIA 2528970528

Diamond specifications and retailer prices

From $3,200 CAD
As of November 5, 2026
Save $3,719 CAD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,919 CAD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2528970528. Listed at 12 retailers as of November 4, 2026, with prices from $3,200 to $6,919, a $3,719 spread on the same certified stone. MOH London lists it at $6,919. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 2528970528
Dimensions6.59 × 6.55 × 4.45 mm
L/W Ratio1.01
Top View
6.59 mm6.55 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2528970528
Side View
Table 61.0%Crown 37°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,919 CAD|Low: $3,200 CAD|High: $7,012 CAD|Avg: $4,349 CAD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$3,200 CAD
Retailer 7$3,315 CAD
Retailer 12$3,546 CAD
Retailer 2$3,840 CAD
Retailer 9$3,882 CAD
Retailer 8$3,960 CAD
Retailer 3$4,158 CAD
Retailer 5$4,165 CAD
Retailer 10$4,294 CAD
Retailer 11$4,332 CAD
Retailer 6$4,832 CAD
MOH London$6,919 CAD

42 data points across 12 retailers

12 retailers$3,200 CAD to $6,919 CAD

A
Cheapest Retailer
-
$3,200 CAD
A
Retailer 2
-
$3,315 CAD
View
A
Retailer 3
-
$3,546 CAD
View
A
Retailer 4
-
$3,840 CAD
View
B+
Retailer 5
-
$3,882 CAD
View
Retailer 6
-
$3,960 CAD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$4,158 CAD
View
A
Retailer 8
-
$4,165 CAD
View
B+
Retailer 9
-
$4,294 CAD
View
B+
Retailer 10
-
$4,332 CAD
View
B+
Retailer 11
-
$4,832 CAD
View
Most Expensive
B
MOH London
34FD10842 · Nov 4
$6,919 CAD
£3,873 GBP
View
11 more retailers have this diamond
Prices start from $3,200 CADSave up to $3,719 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
$3,200 CAD