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Round|Lab Grown|IGI

1.42ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG497172428

Shape and cutting style on the report: Round brilliant

Certificate IGI LG497172428

Diamond specifications and retailer prices

From £853 GBP
$1,143 USD
As of October 29, 2026
Save £2,343 GBP (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,196 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.42ct lab-grown round diamond

This 1.42ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG497172428 or 497172428. Listed at 14 retailers as of October 29, 2026, with prices from £853 to £3,196, a £2,343 spread on the same certified stone. MOH London lists it at £3,196. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.42
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497172428
Dimensions7.33 × 7.31 × 4.34 mm
L/W Ratio1.00
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
7.33 mm7.31 mm1.42 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497172428
Side View
Table 59.5%Crown 33.5°Girdle: MediumPavilion 40.4°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,196 GBP|Low: £819 GBP|High: £3,217 GBP|Avg: £1,593 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
October 30, 2026
Retailer 8£853 GBP
Retailer 7£903 GBP
Retailer 11£955 GBP
Retailer 9£990 GBP
Retailer 12£1,119 GBP
Retailer 3£1,408 GBP
Retailer 10£1,572 GBP
Retailer 5£1,819 GBP
Retailer 2£1,943 GBP
Retailer 4£1,949 GBP
Retailer 6£2,582 GBP
MOH London£3,196 GBP

42 data points across 12 retailers

14 retailers£853 GBP to £3,196 GBP

B+
Cheapest Retailer
-
£853 GBP
$1,143 USD
B+
Retailer 2
-
£903 GBP
$1,210 USD
View
B+
Retailer 3
-
£928 GBP
$1,243 USD
View
B+
Retailer 4
-
£955 GBP
$1,280 USD
View
Final sale: no returns
B
Retailer 5
-
£990 GBP
$1,326 USD
View
Retailer 6
-
£990 GBP
$1,326 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
£1,119 GBP
$1,500 USD
View
B
Retailer 8
-
£1,572 GBP
$2,106 USD
View
B
Retailer 9
-
£1,819 GBP
ZAR 39,371 ZAR
View
B
Retailer 10
-
£1,855 GBP
$2,485 USD
View
B
Retailer 11
-
£1,943 GBP
View
B
Retailer 12
-
£1,949 GBP
$2,612 USD
View
Retailer 13
-
£2,582 GBP
A$5,323 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
LG497172428 · Oct 29
£3,196 GBP
View
13 more retailers have this diamond
Prices start from £853 GBPSave up to £2,343 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.

B+
1.42ct Round
£853 GBP