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Cushion|Lab Grown|IGI

1.20ct F FL Cushion Lab Grown Diamond

VG • F/FL • IGI LG790644838

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790644838

Diamond specifications and retailer prices

From £765 GBP
As of November 5, 2026
Save £2,033 GBP (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,799 GBP at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 1.2ct lab-grown cushion diamond

This 1.2ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG790644838 or 790644838. Listed at 13 retailers as of November 4, 2026, with prices from £765 to £2,799, a £2,033 spread on the same certified stone. Taylor and Hart lists it at £2,799. 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

1.20
Carat
F
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790644838
Dimensions7.77 × 5.33 × 3.25 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.77 mm5.33 mm1.20 ctF / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790644838
Side View
Table 66.0%Crown 38.5°Girdle: MED-THKPavilion 31.3°Culet: NoneDepth 61.0%

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 5
Current: £903 GBP|Low: £805 GBP|High: £2,765 GBP|Avg: £1,440 GBP|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9£805 GBP
Retailer 1£903 GBP
Retailer 8£936 GBP
Retailer 2£1,007 GBP
Retailer 7£1,085 GBP
Retailer 6£1,152 GBP
Retailer 4£1,227 GBP
Retailer 5£1,480 GBP
Retailer 10£2,700 GBP
Retailer 3£2,721 GBP

43 data points across 10 retailers

13 retailers£765 GBP to £2,799 GBP

A
Cheapest Retailer
-
£765 GBP
Retailer 2
-
£805 GBP
View
Price last confirmed 19 days ago
B+
Retailer 3
-
£903 GBP
View
B+
Retailer 4
-
£936 GBP
View
B+
Retailer 5
-
£1,007 GBP
View
B+
Retailer 6
-
£1,085 GBP
View
B+
Retailer 7
-
£1,152 GBP
View
B+
Retailer 8
-
£1,227 GBP
View
B
Retailer 9
-
£1,480 GBP
View
B
Retailer 10
-
£2,219 GBP
View
B
Retailer 11
-
£2,700 GBP
View
B
Retailer 12
-
£2,721 GBP
View
Most Expensive
B
Taylor and Hart
WJ91JRA · Nov 4
£2,799 GBP
$3,767 USD
View
12 more retailers have this diamond
Prices start from £765 GBPSave up to £2,033 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
1.20ct Cushion
£765 GBP