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Round|Lab Grown|IGI

1.20ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG788620403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788620403

Diamond specifications and retailer prices

From £121 GBP
$162 USD
As of October 29, 2026
Save £584 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £705 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG788620403 or 788620403. Listed at 16 retailers as of October 29, 2026, with prices from £121 to £705, a £584 spread on the same certified stone. MOH London lists it at £705. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788620403
Dimensions6.78 × 6.81 × 4.22 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
6.78 mm6.81 mm1.20 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788620403
Side View
Table 58.0%Crown 35.1°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £705 GBP|Low: £121 GBP|High: £726 GBP|Avg: £367 GBP|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 11£121 GBP
Retailer 9£140 GBP
Retailer 6£150 GBP
Retailer 10£264 GBP
Retailer 15£272 GBP
Retailer 2£286 GBP
Retailer 14£291 GBP
Retailer 12£337 GBP
Retailer 7£355 GBP
Retailer 8£393 GBP
Retailer 13£433 GBP
Retailer 5£482 GBP
Retailer 3£523 GBP
Retailer 4£530 GBP
MOH London£705 GBP

42 data points across 15 retailers

16 retailers£121 GBP to £705 GBP

A
Cheapest Retailer
-
£121 GBP
$162 USD
A
Retailer 2
-
£140 GBP
$188 USD
View
A
Retailer 3
-
£150 GBP
$201 USD
View
A
Retailer 4
-
£154 GBP
$206 USD
View
A
Retailer 5
-
£264 GBP
View
A
Retailer 6
-
£272 GBP
$364 USD
View
A
Retailer 7
-
£286 GBP
€365 EUR
View
B+
Retailer 8
-
£291 GBP
$390 USD
View
B+
Retailer 9
-
£337 GBP
$451 USD
View
Retailer 10
-
£355 GBP
$475 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£393 GBP
$527 USD
View
B+
Retailer 12
-
£433 GBP
$580 USD
View
B
Retailer 13
-
£482 GBP
$646 USD
View
B
Retailer 14
-
£523 GBP
$701 USD
View
B
Retailer 15
-
£530 GBP
$710 USD
View
Most Expensive
B
MOH London
LG788620403 · Oct 29
£705 GBP
View
15 more retailers have this diamond
Prices start from £121 GBPSave up to £584 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
£121 GBP