CaratHunter
Plans
Cushion|Natural|HRD

1.09ct J SI1 Cushion Natural Diamond

GD • J/SI1 • HRD 180000099213

Shape and cutting style on the report: Cushion

Certificate HRD 180000099213

Diamond specifications and retailer prices

From £1,990 GBP
As of November 2, 2026
Save £164 GBP (8%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,153 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 1.09ct natural cushion diamond

This 1.09ct 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 180000099213. Listed at 3 retailers as of November 2, 2026, with a relatively tight 8% 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

1.09
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 180000099213
Dimensions6.02 × 5.39 × 4.09 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Top View
6.02 mm5.39 mm1.09 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateHRD 180000099213
Side View
Table 66.0%CrownGirdle: MediumPavilionCulet: 0.0Depth 76.0%

Caratlytics Score

How it works →
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 2
Current: £1,990 GBP|Low: £1,914 GBP|High: £2,349 GBP|Avg: £2,144 GBP|+3.9%
Retailer 1
Retailer 2
Yorxs
November 2, 2026
Retailer 1£1,990 GBP
Yorxs£2,153 GBP
Retailer 2£2,349 GBP

39 data points across 3 retailers

3 retailers£1,990 GBP to £2,153 GBP

B
Cheapest Retailer
-
£1,990 GBP
C
Retailer 2
-
£2,132 GBP
€2,721 EUR
View
Most Expensive
C
Yorxs
357011218 · Nov 2
£2,153 GBP
€2,748 EUR
View
2 more retailers have this diamond
Prices start from £1,990 GBPSave up to £164 GBP

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
£1,990 GBP