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Cushion|Natural|IGI

1.00ct K SI1 Cushion Natural Diamond

GD • K/SI1 • IGI 270773253

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 270773253

Diamond specifications and retailer prices

From $1,445 CAD
As of November 5, 2026
Save $1,598 CAD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,042 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 standard cut grade and certified by IGI 270773253. Listed at 10 retailers as of November 4, 2026, with prices from $1,445 to $3,042, a $1,598 spread on the same certified stone. MOH London lists it at $3,042. 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
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 270773253
Dimensions5.91 × 5.78 × 4.01 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
5.91 mm5.78 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 270773253
Side View
Table 64.5%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,042 CAD|Low: $1,445 CAD|High: $3,087 CAD|Avg: $1,903 CAD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,445 CAD
Retailer 10$1,449 CAD
Retailer 5$1,456 CAD
Retailer 6$1,508 CAD
Retailer 7$1,674 CAD
Retailer 3$1,900 CAD
Retailer 4$2,031 CAD
Retailer 2$2,099 CAD
Retailer 9$2,301 CAD
MOH London$3,042 CAD

43 data points across 10 retailers

10 retailers$1,445 CAD to $3,042 CAD

B+
Cheapest Retailer
-
$1,445 CAD
B+
Retailer 2
-
$1,449 CAD
View
B+
Retailer 3
-
$1,456 CAD
View
Retailer 4
-
$1,508 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,674 CAD
View
B+
Retailer 6
-
$1,900 CAD
View
B+
Retailer 7
-
$2,031 CAD
View
B
Retailer 8
-
$2,099 CAD
View
B
Retailer 9
-
$2,301 CAD
View
Most Expensive
B
MOH London
FADB9622D · Nov 4
$3,042 CAD
£1,703 GBP
View
9 more retailers have this diamond
Prices start from $1,445 CADSave up to $1,598 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.

B+
1.00ct Cushion
$1,445 CAD