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Round|Lab Grown|IGI

1.00ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG799642429

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799642429

Diamond specifications and retailer prices

From £112 GBP
$150 USD
As of November 1, 2026
Save £542 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £654 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799642429 or 799642429. Listed at 20 retailers as of October 29, 2026, with prices from £112 to £654, a £542 spread on the same certified stone. MOH London lists it at £654. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799642429
Dimensions6.50 × 6.48 × 3.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.50 mm6.48 mm1.00 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799642429
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 41.4°Culet: NoneDepth 60.7%

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 1
Current: £654 GBP|Low: £108 GBP|High: £668 GBP|Avg: £295 GBP|-2.1%
MOH London
Retailer 2
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Retailer 19
November 1, 2026
Retailer 4£112 GBP
Retailer 18£125 GBP
Retailer 17£129 GBP
Retailer 13£138 GBP
Retailer 7£139 GBP
Retailer 8£216 GBP
Retailer 2£239 GBP
Retailer 12£253 GBP
Retailer 5£255 GBP
Retailer 10£291 GBP
Retailer 6£339 GBP
Retailer 15£360 GBP
Retailer 11£373 GBP
Retailer 16£376 GBP
Retailer 9£383 GBP
Retailer 14£445 GBP
Retailer 3£448 GBP
Retailer 19£486 GBP
MOH London£654 GBP

31 data points across 19 retailers

20 retailers£112 GBP to £654 GBP

A
Cheapest Retailer
-
£112 GBP
$150 USD
A
Retailer 2
-
£125 GBP
$167 USD
View
Final sale: no returns
A
Retailer 3
-
£129 GBP
$173 USD
View
Retailer 4
-
£137 GBP
$184 USD
View
Price last confirmed 61 days ago
A
Retailer 5
-
£138 GBP
$185 USD
View
Retailer 6
-
£139 GBP
$186 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£216 GBP
$290 USD
View
A
Retailer 8
-
£239 GBP
ZAR 5,172 ZAR
View
A
Retailer 9
-
£253 GBP
View
A
Retailer 10
-
£255 GBP
$342 USD
View
Retailer 11
-
£291 GBP
$390 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£339 GBP
A$699 AUD
View
B+
Retailer 13
-
£360 GBP
$483 USD
View
B+
Retailer 14
-
£373 GBP
$500 USD
View
B+
Retailer 15
-
£376 GBP
$504 USD
View
B+
Retailer 16
-
£383 GBP
SGD 694 SGD
View
B+
Retailer 17
-
£445 GBP
$596 USD
View
B+
Retailer 18
-
£448 GBP
$600 USD
View
B
Retailer 19
-
£486 GBP
$652 USD
View
Most Expensive
B
MOH London
LG799642429 · Oct 29
£654 GBP
View
19 more retailers have this diamond
Prices start from £112 GBPSave up to £542 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
1.00ct Round
£112 GBP