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Round|Lab Grown|IGI

3.00ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG492136762

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136762

Diamond specifications and retailer prices

From £1,211 GBP
As of November 5, 2026
Save £7,342 GBP (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,553 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136762 or 492136762. Listed at 10 retailers as of November 5, 2026, with prices from £1,211 to £8,553, a £7,342 spread on the same certified stone. MOH London lists it at £8,553. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.00
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136762
Dimensions9.40 × 9.36 × 5.57 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 mm9.36 mm3.00 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136762
Side View
Table 57.5%Crown 33°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 59.4%

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: Nov 5
Current: £8,553 GBP|Low: £1,211 GBP|High: £9,661 GBP|Avg: £5,328 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2£1,211 GBP
Retailer 4£3,633 GBP
Retailer 7£4,068 GBP
Retailer 5£4,214 GBP
Retailer 8£4,214 GBP
Retailer 9£4,660 GBP
Retailer 3£5,284 GBP
Retailer 6£6,515 GBP
MOH London£8,553 GBP
Retailer 10£9,661 GBP

16 data points across 10 retailers

10 retailers£1,211 GBP to £8,553 GBP

A
Cheapest Retailer
-
£1,211 GBP
B+
Retailer 2
-
£3,633 GBP
View
B+
Retailer 3
-
£3,808 GBP
View
B+
Retailer 4
-
£4,068 GBP
View
Final sale: no returns
Retailer 5
-
£4,214 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£4,214 GBP
View
B
Retailer 7
-
£5,003 GBP
View
B
Retailer 8
-
£5,284 GBP
View
B
Retailer 9
-
£6,515 GBP
View
Most Expensive
B
MOH London
LG492136762 · Nov 5
£8,553 GBP
View
9 more retailers have this diamond
Prices start from £1,211 GBPSave up to £7,342 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
3.00ct Round
£1,211 GBP