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Round|Lab Grown|IGI

1.20ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG804642767

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642767

Diamond specifications and retailer prices

From £122 GBP
$164 USD
As of November 1, 2026
Save £589 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £712 GBP at MOH London · As of October 29, 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 LG804642767 or 804642767. Listed at 19 retailers as of October 29, 2026, with prices from £122 to £712, a £589 spread on the same certified stone. MOH London lists it at £712. 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 angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642767
Dimensions6.97 × 6.89 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm6.89 mm1.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642767
Side View
Table 59.0%Crown 34.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.6%

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: £712 GBP|Low: £122 GBP|High: £740 GBP|Avg: £361 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 10
Retailer 11
Retailer 12
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Retailer 17
November 2, 2026
Retailer 16£122 GBP
Retailer 15£142 GBP
Retailer 9£151 GBP
Retailer 14£261 GBP
Retailer 11£265 GBP
Retailer 4£273 GBP
Retailer 10£285 GBP
Retailer 3£285 GBP
Retailer 17£338 GBP
Retailer 12£370 GBP
Retailer 6£387 GBP
Retailer 2£402 GBP
Retailer 13£469 GBP
Retailer 8£487 GBP
Retailer 5£528 GBP
Retailer 7£537 GBP
MOH London£712 GBP

42 data points across 17 retailers

19 retailers£122 GBP to £712 GBP

A
Cheapest Retailer
-
£122 GBP
$164 USD
A
Retailer 2
-
£142 GBP
$190 USD
View
A
Retailer 3
-
£151 GBP
$203 USD
View
Retailer 4
-
£156 GBP
$210 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£261 GBP
ZAR 5,668 ZAR
View
A
Retailer 6
-
£265 GBP
View
A
Retailer 7
-
£273 GBP
$366 USD
View
A
Retailer 8
-
£285 GBP
€364 EUR
View
B+
Retailer 9
-
£285 GBP
$383 USD
View
B+
Retailer 10
-
£338 GBP
$453 USD
View
B+
Retailer 11
-
£370 GBP
A$763 AUD
View
B+
Retailer 12
-
£387 GBP
$520 USD
View
B+
Retailer 13
-
£402 GBP
$540 USD
View
B+
Retailer 14
-
£469 GBP
$630 USD
View
Retailer 15
-
£481 GBP
$645 USD
View
Price last confirmed 47 days ago
B
Retailer 16
-
£487 GBP
$653 USD
View
B
Retailer 17
-
£528 GBP
$708 USD
View
B
Retailer 18
-
£537 GBP
$720 USD
View
Most Expensive
B
MOH London
LG804642767 · Oct 29
£712 GBP
View
18 more retailers have this diamond
Prices start from £122 GBPSave up to £589 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
£122 GBP