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Round|Lab Grown|IGI

1.20ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG799635498

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799635498

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)
20 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 LG799635498 or 799635498. Listed at 20 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 angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799635498
Dimensions6.84 × 6.87 × 4.17 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.87 mm1.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799635498
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

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: £121 GBP|High: £740 GBP|Avg: £342 GBP|-3.6%
MOH London
Retailer 2
Retailer 3
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 18
November 2, 2026
Retailer 18£122 GBP
Retailer 17£142 GBP
Retailer 10£151 GBP
Retailer 12£261 GBP
Retailer 16£261 GBP
Retailer 13£265 GBP
Retailer 5£273 GBP
Retailer 11£285 GBP
Retailer 4£285 GBP
Retailer 3£338 GBP
Retailer 14£370 GBP
Retailer 7£387 GBP
Retailer 2£402 GBP
Retailer 15£469 GBP
Retailer 9£487 GBP
Retailer 6£528 GBP
Retailer 8£537 GBP
MOH London£712 GBP

33 data points across 18 retailers

20 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
View
A
Retailer 6
-
£261 GBP
ZAR 5,668 ZAR
View
A
Retailer 7
-
£265 GBP
View
A
Retailer 8
-
£273 GBP
$366 USD
View
A
Retailer 9
-
£285 GBP
€364 EUR
View
B+
Retailer 10
-
£285 GBP
$383 USD
View
B+
Retailer 11
-
£338 GBP
$453 USD
View
B+
Retailer 12
-
£370 GBP
A$763 AUD
View
B+
Retailer 13
-
£387 GBP
$520 USD
View
B+
Retailer 14
-
£402 GBP
$540 USD
View
B+
Retailer 15
-
£469 GBP
$630 USD
View
B
Retailer 16
-
£487 GBP
$653 USD
View
B
Retailer 17
-
£528 GBP
$708 USD
View
Retailer 18
-
£531 GBP
$713 USD
View
Price last confirmed 18 days ago
B
Retailer 19
-
£537 GBP
$720 USD
View
Most Expensive
B
MOH London
LG799635498 · Oct 29
£712 GBP
View
19 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