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Cushion|Natural|IGI

1.03ct F SI1 Cushion Natural Diamond

VG • F/SI1 • IGI 807683186

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 807683186

Diamond specifications and retailer prices

From £1,136 GBP
As of November 6, 2026
Save £1,015 GBP (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,151 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 807683186. Listed at 9 retailers as of November 4, 2026, with prices from £1,136 to £2,151, a £1,015 spread on the same certified stone. MOH London lists it at £2,151. 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

1.03
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 807683186
Dimensions7.05 × 5.21 × 3.34 mm
L/W Ratio1.35
Girdle conditionFaceted
Top View
7.05 mm5.21 mm1.03 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 807683186
Side View
Table 68.0%Crown 36.2°Girdle: THN-THKPavilion 38.7°CuletDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,151 GBP|Low: £1,136 GBP|High: £2,513 GBP|Avg: £1,600 GBP|-13.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£1,136 GBP
Retailer 8£1,141 GBP
Retailer 6£1,143 GBP
Retailer 2£1,194 GBP
Retailer 7£1,231 GBP
Retailer 4£1,389 GBP
Retailer 5£1,502 GBP
Retailer 3£1,672 GBP
MOH London£2,151 GBP

44 data points across 9 retailers

9 retailers£1,136 GBP to £2,151 GBP

A
Cheapest Retailer
-
£1,136 GBP
Final sale: no returns
A
Retailer 2
-
£1,141 GBP
View
A
Retailer 3
-
£1,143 GBP
View
A
Retailer 4
-
£1,194 GBP
View
Retailer 5
-
£1,231 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,389 GBP
View
B+
Retailer 7
-
£1,502 GBP
View
B+
Retailer 8
-
£1,672 GBP
View
Most Expensive
B
MOH London
D41EBF5A7 · Nov 4
£2,151 GBP
View
8 more retailers have this diamond
Prices start from £1,136 GBPSave up to £1,015 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.

A
1.03ct Cushion
£1,136 GBP