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Cushion|Natural|IGI

1.00ct F I1 Cushion Natural Diamond

VG • F/I1 • IGI 743535218

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI 743535218

Diamond specifications and retailer prices

From £837 GBP
$1,123 USD
As of November 1, 2026
Save £385 GBP (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,221 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 743535218. Listed at 4 retailers as of November 1, 2026, with prices from £837 to £1,221, a £385 spread on the same certified stone. Yorxs lists it at £1,221. 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

1.00
Carat
F
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle33°
OriginNatural
Grading LabIGI
CertificateIGI 743535218
Dimensions5.48 × 5.31 × 3.78 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Top View
5.48 mm5.31 mm1.00 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743535218
Side View
Table 60.0%Crown 40°Girdle: MED-THKPavilion 33°Culet: NoneDepth 71.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £873 GBP|Low: £837 GBP|High: £1,221 GBP|Avg: £977 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
October 31, 2026
Retailer 4£837 GBP
Retailer 1£873 GBP
Retailer 2£908 GBP
Retailer 3£1,039 GBP
Yorxs£1,221 GBP

14 data points across 5 retailers

4 retailers£837 GBP to £1,221 GBP

B+
Cheapest Retailer
-
£837 GBP
$1,123 USD
B+
Retailer 2
-
£873 GBP
$1,172 USD
View
B+
Retailer 3
-
£908 GBP
$1,218 USD
View
Most Expensive
B+
Yorxs
DC990C253 · Nov 2
£1,221 GBP
€1,561 EUR
View
3 more retailers have this diamond
Prices start from £837 GBPSave up to £385 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+
1.00ct Cushion
£837 GBP