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Round|Lab Grown|IGI

1.20ct F VS2 Round Lab Grown Diamond

VG • F/VS2 • IGI LG657424193

Shape and cutting style on the report: Round brilliant

Certificate IGI LG657424193

Diamond specifications and retailer prices

From £124 GBP
$167 USD
As of November 1, 2026
Save £598 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £723 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG657424193 or 657424193. Listed at 21 retailers as of October 31, 2026, with prices from £124 to £723, a £598 spread on the same certified stone. Brilliant Earth lists it at £723. 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
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657424193
Dimensions6.80 × 6.77 × 4.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.80 mm6.77 mm1.20 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657424193
Side View
Table 61.0%Crown 34.1°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £723 GBP|Low: £124 GBP|High: £744 GBP|Avg: £377 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 16£124 GBP
Retailer 7£154 GBP
Retailer 9£154 GBP
Retailer 11£270 GBP
Retailer 17£276 GBP
Retailer 10£283 GBP
Retailer 15£285 GBP
Retailer 13£298 GBP
Retailer 5£339 GBP
Retailer 12£362 GBP
Retailer 3£376 GBP
Retailer 4£495 GBP
Retailer 8£515 GBP
Retailer 14£522 GBP
Retailer 6£535 GBP
Retailer 2£719 GBP
Brilliant Earth£723 GBP

41 data points across 17 retailers

21 retailers£124 GBP to £723 GBP

A
Cheapest Retailer
-
£124 GBP
$167 USD
Retailer 2
-
£127 GBP
$170 USD
View
Price last confirmed 41 days ago
Retailer 3
-
£147 GBP
$197 USD
View
Price last confirmed 41 days ago
Retailer 4
-
£154 GBP
$206 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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£154 GBP
$206 USD
View
Retailer 6
-
£155 GBP
$208 USD
View
Price last confirmed 41 days ago
A
Retailer 7
-
£270 GBP
View
B+
Retailer 8
-
£276 GBP
$371 USD
View
A
Retailer 9
-
£283 GBP
View
B+
Retailer 10
-
£285 GBP
$383 USD
View
B+
Retailer 11
-
£298 GBP
€381 EUR
View
B+
Retailer 12
-
£339 GBP
$455 USD
View
B+
Retailer 13
-
£362 GBP
A$748 AUD
View
B
Retailer 14
-
£376 GBP
$505 USD
View
B
Retailer 15
-
£495 GBP
$664 USD
View
Retailer 16
-
£505 GBP
$678 USD
View
Price last confirmed 42 days ago
B
Retailer 17
-
£515 GBP
$691 USD
View
B
Retailer 18
-
£522 GBP
$701 USD
View
Retailer 19
-
£535 GBP
$719 USD
View
Price last confirmed 15 days ago
B
Retailer 20
-
£719 GBP
View
Most Expensive
B
Brilliant Earth
13755180A · Oct 31
£723 GBP
$970 USD
View
20 more retailers have this diamond
Prices start from £124 GBPSave up to £598 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 Round
£124 GBP