CaratHunter
Plans
Round|Lab Grown|IGI

3.04ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG488143425

Shape and cutting style on the report: Round brilliant

Certificate IGI LG488143425

Diamond specifications and retailer prices

From £1,204 GBP
As of November 5, 2026
Save £7,459 GBP (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,662 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.04ct lab-grown round diamond

This 3.04ct 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 LG488143425 or 488143425. Listed at 10 retailers as of November 5, 2026, with prices from £1,204 to £8,662, a £7,459 spread on the same certified stone. MOH London lists it at £8,662. 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

3.04
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488143425
Dimensions9.40 × 9.35 × 5.56 mm
L/W Ratio1.01
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 mm9.35 mm3.04 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488143425
Side View
Table 59.0%Crown 31.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.2%

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 5
Current: £8,662 GBP|Low: £1,204 GBP|High: £9,790 GBP|Avg: £5,227 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5£1,204 GBP
Retailer 4£3,679 GBP
Retailer 9£3,856 GBP
Retailer 8£4,121 GBP
Retailer 6£4,268 GBP
Retailer 11£4,717 GBP
Retailer 10£5,066 GBP
Retailer 2£5,352 GBP
Retailer 7£6,597 GBP
MOH London£8,662 GBP
Retailer 3£9,790 GBP

18 data points across 11 retailers

10 retailers£1,204 GBP to £8,662 GBP

A
Cheapest Retailer
-
£1,204 GBP
B+
Retailer 2
-
£3,679 GBP
View
B+
Retailer 3
-
£3,856 GBP
View
B+
Retailer 4
-
£4,121 GBP
View
Final sale: no returns
B+
Retailer 5
-
£4,268 GBP
View
Retailer 6
-
£4,268 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£5,066 GBP
View
B
Retailer 8
-
£5,352 GBP
View
B
Retailer 9
-
£6,597 GBP
View
Most Expensive
B
MOH London
LG488143425 · Nov 5
£8,662 GBP
View
9 more retailers have this diamond
Prices start from £1,204 GBPSave up to £7,459 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
3.04ct Round
£1,204 GBP