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Round|Lab Grown|IGI

1.51ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG492123250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123250

Diamond specifications and retailer prices

From £624 GBP
As of November 5, 2026
Save £2,798 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,422 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123250 or 492123250. Listed at 11 retailers as of November 3, 2026, with prices from £624 to £3,422, a £2,798 spread on the same certified stone. MOH London lists it at £3,422. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123250
Dimensions7.40 × 7.35 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.40 mm7.35 mm1.51 ctJ / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123250
Side View
Table 58.5%Crown 35.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.5%

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 5
Current: £3,422 GBP|Low: £624 GBP|High: £3,468 GBP|Avg: £1,587 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 2£624 GBP
Retailer 4£918 GBP
Retailer 7£1,028 GBP
Retailer 5£1,065 GBP
Retailer 8£1,065 GBP
Retailer 9£1,192 GBP
Retailer 11£1,501 GBP
Retailer 6£1,689 GBP
Retailer 10£2,040 GBP
Retailer 3£2,384 GBP
MOH London£3,422 GBP

16 data points across 11 retailers

11 retailers£624 GBP to £3,422 GBP

A
Cheapest Retailer
-
£624 GBP
A
Retailer 2
-
£918 GBP
View
A
Retailer 3
-
£999 GBP
View
A
Retailer 4
-
£1,028 GBP
View
Final sale: no returns
Retailer 5
-
£1,065 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,065 GBP
View
B+
Retailer 7
-
£1,192 GBP
View
B
Retailer 8
-
£1,689 GBP
View
B
Retailer 9
-
£1,996 GBP
View
B
Retailer 10
-
£2,040 GBP
View
Most Expensive
B
MOH London
LG492123250 · Nov 3
£3,422 GBP
View
10 more retailers have this diamond
Prices start from £624 GBPSave up to £2,798 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
1.51ct Round
£624 GBP