CaratHunter
Plans
Round|Lab Grown|IGI

1.20ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG784618581

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784618581

Diamond specifications and retailer prices

From £127 GBP
As of November 3, 2026
Save £608 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £735 GBP at MOH London · As of November 2, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG784618581 or 784618581. Listed at 22 retailers as of November 2, 2026, with prices from £127 to £735, a £608 spread on the same certified stone. MOH London lists it at £735. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784618581
Dimensions6.90 × 6.87 × 4.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.90 mm6.87 mm1.20 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784618581
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

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 3
Current: £735 GBP|Low: £127 GBP|High: £744 GBP|Avg: £325 GBP|-1.0%
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
November 5, 2026
Retailer 3£127 GBP
Retailer 6£147 GBP
Retailer 5£157 GBP
Retailer 7£270 GBP
Retailer 12£271 GBP
Retailer 9£272 GBP
Retailer 2£277 GBP
Retailer 8£356 GBP
Retailer 4£360 GBP
Retailer 11£383 GBP
Retailer 10£398 GBP
Retailer 14£471 GBP
Retailer 13£489 GBP
MOH London£735 GBP

36 data points across 14 retailers

22 retailers£127 GBP to £735 GBP

A
Cheapest Retailer
-
£127 GBP
A
Retailer 2
-
£147 GBP
View
A
Retailer 3
-
£157 GBP
View
Retailer 4
-
£157 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£270 GBP
View
A
Retailer 6
-
£271 GBP
View
A
Retailer 7
-
£272 GBP
View
A
Retailer 8
-
£277 GBP
View
A
Retailer 9
-
£281 GBP
View
A
Retailer 10
-
£284 GBP
View
B+
Retailer 11
-
£356 GBP
View
B+
Retailer 12
-
£360 GBP
View
B+
Retailer 13
-
£383 GBP
View
B+
Retailer 14
-
£397 GBP
View
B+
Retailer 15
-
£398 GBP
View
Retailer 16
-
£471 GBP
View
Price last confirmed 9 days ago
B+
Retailer 17
-
£489 GBP
View
B
Retailer 18
-
£505 GBP
View
B
Retailer 19
-
£516 GBP
View
B
Retailer 20
-
£519 GBP
View
B
Retailer 21
-
£545 GBP
View
Most Expensive
B
MOH London
LG784618581 · Nov 2
£735 GBP
View
21 more retailers have this diamond
Prices start from £127 GBPSave up to £608 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
£127 GBP