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Round|Lab Grown|IGI

1.51ct J VS2 Round Lab Grown Diamond

EX • J/VS2 • IGI LG451055425

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055425

Diamond specifications and retailer prices

From £627 GBP
$840 USD
As of October 30, 2026
Save £2,829 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,456 GBP at MOH London · As of October 29, 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 LG451055425 or 451055425. Listed at 11 retailers as of October 29, 2026, with prices from £627 to £3,456, a £2,829 spread on the same certified stone. MOH London lists it at £3,456. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055425
Dimensions7.28 × 7.27 × 4.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process Type IIa
Top View
7.28 mm7.27 mm1.51 ctJ / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055425
Side View
Table 54.5%Crown 35.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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 30
Current: £3,456 GBP|Low: £627 GBP|High: £3,480 GBP|Avg: £1,664 GBP|+0.5%
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
October 30, 2026
Retailer 2£627 GBP
Retailer 8£922 GBP
Retailer 11£1,004 GBP
Retailer 13£1,032 GBP
Retailer 9£1,070 GBP
Retailer 7£1,198 GBP
Retailer 5£1,290 GBP
Retailer 3£1,508 GBP
Retailer 10£1,696 GBP
Retailer 12£2,005 GBP
Retailer 14£2,049 GBP
Retailer 6£2,395 GBP
Retailer 4£3,063 GBP
MOH London£3,456 GBP

13 data points across 14 retailers

11 retailers£627 GBP to £3,456 GBP

A
Cheapest Retailer
-
£627 GBP
$840 USD
A
Retailer 2
-
£922 GBP
$1,236 USD
View
A
Retailer 3
-
£1,004 GBP
$1,345 USD
View
A
Retailer 4
-
£1,032 GBP
$1,383 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,070 GBP
$1,434 USD
View
Retailer 6
-
£1,070 GBP
$1,434 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
£1,198 GBP
$1,605 USD
View
B
Retailer 8
-
£1,696 GBP
$2,273 USD
View
B
Retailer 9
-
£2,005 GBP
$2,687 USD
View
B
Retailer 10
-
£2,049 GBP
$2,746 USD
View
Most Expensive
B
MOH London
LG451055425 · Oct 29
£3,456 GBP
View
10 more retailers have this diamond
Prices start from £627 GBPSave up to £2,829 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
£627 GBP