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Cushion|Natural|HRD

1.23ct J SI1 Cushion Natural Diamond

GD • J/SI1 • HRD 170001410009

Shape and cutting style on the report: Cushion

Certificate HRD 170001410009

Diamond specifications and retailer prices

From €4,366 EUR
£3,841 GBP
As of November 2, 2026
Save €244 EUR (5%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €6,905 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 170001410009. Listed at 3 retailers as of October 31, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.23
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 170001410009
Dimensions7.58 × 6.51 × 3.07 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
7.58 mm6.51 mm1.23 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 170001410009
Side View
Table 67.0%CrownGirdle: MediumPavilionCulet: 3.1Depth 47.0%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: €6,905 EUR|Low: €4,128 EUR|High: €6,988 EUR|Avg: €4,987 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4€4,128 EUR
Retailer 2€4,366 EUR
Retailer 3€4,610 EUR
MOH London€6,905 EUR

39 data points across 4 retailers

3 retailers€4,366 EUR to €4,610 EUR

C
Cheapest Retailer
-
€4,366 EUR
£3,841 GBP
C
Retailer 2
-
€4,610 EUR
View
Most Expensive
MOH London
A539A7539 · Nov 1
€6,905 EUR
£6,074 GBP
View
Price under review
2 more retailers have this diamond
Prices start from €4,366 EURSave up to €244 EUR

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.

C
1.23ct Cushion
€4,366 EUR