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Round|Lab Grown|IGI

1.00ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG843608521

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843608521

Diamond specifications and retailer prices

From £111 GBP
$149 USD
As of October 29, 2026
Save £536 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £647 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843608521 or 843608521. Listed at 16 retailers as of October 29, 2026, with prices from £111 to £647, a £536 spread on the same certified stone. MOH London lists it at £647. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843608521
Dimensions6.36 × 6.42 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
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 Faint Blue
Top View
6.36 mm6.42 mm1.00 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843608521
Side View
Table 56.0%Crown 34.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.3%

Caratlytics Score

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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 29
Current: £647 GBP|Low: £111 GBP|High: £647 GBP|Avg: £304 GBP|+0.4%
MOH London
Retailer 2
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Retailer 16
October 31, 2026
Retailer 15£111 GBP
Retailer 14£129 GBP
Retailer 5£138 GBP
Retailer 13£138 GBP
Retailer 9£231 GBP
Retailer 3£235 GBP
Retailer 12£236 GBP
Retailer 10£238 GBP
Retailer 11£240 GBP
Retailer 4£253 GBP
Retailer 16£336 GBP
Retailer 2£352 GBP
Retailer 6£375 GBP
Retailer 7£443 GBP
Retailer 8£484 GBP
MOH London£647 GBP

8 data points across 16 retailers

16 retailers£111 GBP to £647 GBP

A
Cheapest Retailer
-
£111 GBP
$149 USD
A
Retailer 2
-
£129 GBP
$173 USD
View
A
Retailer 3
-
£138 GBP
$185 USD
View
A
Retailer 4
-
£138 GBP
$185 USD
View
A
Retailer 5
-
£231 GBP
View
A
Retailer 6
-
£235 GBP
$315 USD
View
A
Retailer 7
-
£236 GBP
ZAR 5,118 ZAR
View
B+
Retailer 8
-
£238 GBP
View
A
Retailer 9
-
£240 GBP
€306 EUR
View
B+
Retailer 10
-
£253 GBP
$339 USD
View
B+
Retailer 11
-
£336 GBP
A$692 AUD
View
B+
Retailer 12
-
£352 GBP
$472 USD
View
B+
Retailer 13
-
£375 GBP
$503 USD
View
B
Retailer 14
-
£443 GBP
$593 USD
View
B
Retailer 15
-
£484 GBP
$649 USD
View
Most Expensive
B
MOH London
LG843608521 · Oct 29
£647 GBP
View
15 more retailers have this diamond
Prices start from £111 GBPSave up to £536 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
£111 GBP