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Cushion|Natural|IGI

1.00ct K SI1 Cushion Natural Diamond

VG • K/SI1 • IGI 808619901

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 808619901

Diamond specifications and retailer prices

From $1,128 CAD
As of November 6, 2026
Save $999 CAD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,128 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 808619901. Listed at 10 retailers as of November 4, 2026, with prices from $1,128 to $2,128, a $999 spread on the same certified stone. MOH London lists it at $2,128. 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

1.00
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.8°
Pavilion angle28.3°
OriginNatural
Grading LabIGI
CertificateIGI 808619901
Dimensions5.54 × 5.03 × 3.65 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
5.54 mm5.03 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 808619901
Side View
Table 63.0%Crown 40.8°Girdle: THK-VTKPavilion 28.3°Culet: NoneDepth 72.6%

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 6
Current: $2,128 CAD|Low: $1,127 CAD|High: $2,156 CAD|Avg: $1,358 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$1,128 CAD
Retailer 6$1,163 CAD
Retailer 5$1,167 CAD
Retailer 10$1,179 CAD
Retailer 7$1,197 CAD
Retailer 8$1,328 CAD
Retailer 9$1,349 CAD
Retailer 4$1,419 CAD
Retailer 3$1,429 CAD
MOH London$2,128 CAD

43 data points across 10 retailers

10 retailers$1,128 CAD to $2,128 CAD

A
Cheapest Retailer
-
$1,128 CAD
Retailer 2
-
$1,163 CAD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,167 CAD
View
B+
Retailer 4
-
$1,179 CAD
View
B+
Retailer 5
-
$1,197 CAD
View
B+
Retailer 6
-
$1,328 CAD
View
B+
Retailer 7
-
$1,349 CAD
View
B+
Retailer 8
-
$1,419 CAD
View
B+
Retailer 9
-
$1,429 CAD
View
Most Expensive
B+
MOH London
103165640 · Nov 4
$2,128 CAD
£1,191 GBP
View
9 more retailers have this diamond
Prices start from $1,128 CADSave up to $999 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
1.00ct Cushion
$1,128 CAD