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Round|Lab Grown|IGI

1.20ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG779635852

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779635852

Diamond specifications and retailer prices

From £136 GBP
$182 USD
As of November 1, 2026
Save £651 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £786 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG779635852 or 779635852. Listed at 18 retailers as of November 1, 2026, with prices from £136 to £786, a £651 spread on the same certified stone. MOH London lists it at £786. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779635852
Dimensions6.88 × 6.83 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.83 mm1.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779635852
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 40.9°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 1
Current: £786 GBP|Low: £136 GBP|High: £809 GBP|Avg: £355 GBP|-1.2%
MOH London
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
November 2, 2026
Retailer 17£136 GBP
Retailer 3£152 GBP
Retailer 16£157 GBP
Retailer 5£168 GBP
Retailer 15£168 GBP
Retailer 9£289 GBP
Retailer 10£290 GBP
Retailer 11£290 GBP
Retailer 14£290 GBP
Retailer 8£297 GBP
Retailer 13£303 GBP
Retailer 7£399 GBP
Retailer 12£410 GBP
Retailer 2£428 GBP
Retailer 6£541 GBP
Retailer 4£581 GBP
MOH London£786 GBP

37 data points across 17 retailers

18 retailers£136 GBP to £786 GBP

A
Cheapest Retailer
-
£136 GBP
$182 USD
A
Retailer 2
-
£152 GBP
$204 USD
View
Final sale: no returns
A
Retailer 3
-
£157 GBP
$211 USD
View
A
Retailer 4
-
£168 GBP
$226 USD
View
Retailer 5
-
£168 GBP
$226 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£289 GBP
$388 USD
View
A
Retailer 7
-
£290 GBP
€370 EUR
View
A
Retailer 8
-
£290 GBP
View
A
Retailer 9
-
£290 GBP
ZAR 6,295 ZAR
View
A
Retailer 10
-
£297 GBP
$399 USD
View
B+
Retailer 11
-
£303 GBP
View
B+
Retailer 12
-
£399 GBP
$535 USD
View
B+
Retailer 13
-
£408 GBP
$547 USD
View
B+
Retailer 14
-
£410 GBP
A$847 AUD
View
B+
Retailer 15
-
£428 GBP
$575 USD
View
B
Retailer 16
-
£541 GBP
$726 USD
View
B
Retailer 17
-
£581 GBP
$780 USD
View
Most Expensive
B
MOH London
LG779635852 · Nov 1
£786 GBP
View
17 more retailers have this diamond
Prices start from £136 GBPSave up to £651 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
£136 GBP