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Round|Lab Grown|IGI

3.09ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG488146962

Shape and cutting style on the report: Round brilliant

Certificate IGI LG488146962

Diamond specifications and retailer prices

From £369 GBP
$494 USD
As of October 29, 2026
Save £1,552 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,920 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG488146962 or 488146962. Listed at 18 retailers as of October 29, 2026, with prices from £369 to £1,920, a £1,552 spread on the same certified stone. MOH London lists it at £1,920. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488146962
Dimensions9.40 × 9.43 × 5.72 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
9.40 mm9.43 mm3.09 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488146962
Side View
Table 58.0%Crown 33.1°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.7%

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: £1,920 GBP|Low: £355 GBP|High: £1,933 GBP|Avg: £878 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 30, 2026
Retailer 16£369 GBP
Retailer 5£413 GBP
Retailer 7£458 GBP
Retailer 18£458 GBP
Retailer 10£497 GBP
Retailer 14£560 GBP
Retailer 4£678 GBP
Retailer 12£699 GBP
Retailer 2£713 GBP
Retailer 11£843 GBP
Retailer 8£871 GBP
Retailer 13£993 GBP
Retailer 15£1,063 GBP
Retailer 6£1,204 GBP
Retailer 17£1,299 GBP
Retailer 3£1,450 GBP
Retailer 9£1,491 GBP
MOH London£1,920 GBP

40 data points across 18 retailers

18 retailers£369 GBP to £1,920 GBP

A
Cheapest Retailer
-
£369 GBP
$494 USD
A
Retailer 2
-
£413 GBP
$554 USD
View
A
Retailer 3
-
£458 GBP
$613 USD
View
Retailer 4
-
£458 GBP
$613 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£497 GBP
HK$5,200 HKD
View
A
Retailer 6
-
£560 GBP
$750 USD
View
A
Retailer 7
-
£678 GBP
$909 USD
View
A
Retailer 8
-
£699 GBP
€892 EUR
View
A
Retailer 9
-
£713 GBP
$955 USD
View
A
Retailer 10
-
£843 GBP
View
B+
Retailer 11
-
£871 GBP
$1,167 USD
View
B+
Retailer 12
-
£993 GBP
ZAR 21,501 ZAR
View
B+
Retailer 13
-
£1,063 GBP
$1,424 USD
View
B+
Retailer 14
-
£1,204 GBP
$1,613 USD
View
B
Retailer 15
-
£1,299 GBP
$1,740 USD
View
B
Retailer 16
-
£1,450 GBP
SGD 2,625 SGD
View
B
Retailer 17
-
£1,491 GBP
$1,998 USD
View
Most Expensive
B
MOH London
LG488146962 · Oct 29
£1,920 GBP
View
17 more retailers have this diamond
Prices start from £369 GBPSave up to £1,552 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
3.09ct Round
£369 GBP