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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 $1,940 USD
As of November 6, 2026
Save $1,081 USD (36%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,021 USD 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 $1,940 to $3,021, a $1,081 spread on the same certified stone. MOH London lists it at $3,021. 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
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Price History

Last verified: Nov 6
Current: $3,021 USD|Low: $1,865 USD|High: $3,066 USD|Avg: $2,382 USD|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$1,940 USD
Retailer 2$2,196 USD
MOH London$3,021 USD

41 data points across 3 retailers

3 retailers$1,940 USD to $3,021 USD

B
Cheapest Retailer
-
$1,940 USD
B
Retailer 2
-
$2,196 USD
View
Most Expensive
B
MOH London
B76D592AA · Nov 4
$3,021 USD
£2,379 GBP
View
2 more retailers have this diamond
Prices start from $1,940 USDSave up to $1,081 USD

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
$1,940 USD