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Cushion|Natural|HRD

1.09ct K SI1 Cushion Natural Diamond

EX • K/SI1 • HRD 190000008912

Shape and cutting style on the report: Cushion

Certificate HRD 190000008912

Diamond specifications and retailer prices

From $2,729 CAD
As of November 6, 2026
Save $1,521 CAD (36%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,250 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct natural cushion diamond

This 1.09ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 190000008912. Listed at 3 retailers as of November 4, 2026, with prices from $2,729 to $4,250, a $1,521 spread on the same certified stone. MOH London lists it at $4,250. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabHRD
CertificateHRD 190000008912
Dimensions6.33 × 5.42 × 3.81 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Top View
6.33 mm5.42 mm1.09 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateHRD 190000008912
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: 0.0Depth 70.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,250 CAD|Low: $2,623 CAD|High: $4,312 CAD|Avg: $3,351 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$2,729 CAD
Retailer 2$3,089 CAD
MOH London$4,250 CAD

41 data points across 3 retailers

3 retailers$2,729 CAD to $4,250 CAD

B
Cheapest Retailer
-
$2,729 CAD
B
Retailer 2
-
$3,089 CAD
View
Most Expensive
B
MOH London
B76D592AA · Nov 4
$4,250 CAD
£2,379 GBP
View
2 more retailers have this diamond
Prices start from $2,729 CADSave up to $1,521 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
1.09ct Cushion
$2,729 CAD