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Round|Lab Grown|IGI

3.00ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG499190405

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499190405

Diamond specifications and retailer prices

From £2,066 GBP
As of November 5, 2026
Save £7,231 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £9,296 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499190405 or 499190405. Listed at 10 retailers as of November 5, 2026, with prices from £2,066 to £9,296, a £7,231 spread on the same certified stone. MOH London lists it at £9,296. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499190405
Dimensions9.43 × 9.36 × 5.48 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
9.43 mm9.36 mm3.00 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499190405
Side View
Table 61.0%Crown 31.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £9,296 GBP|Low: £2,066 GBP|High: £10,535 GBP|Avg: £5,785 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 4£2,066 GBP
Retailer 3£3,949 GBP
Retailer 7£4,422 GBP
Retailer 5£4,581 GBP
Retailer 8£4,581 GBP
Retailer 9£4,902 GBP
Retailer 2£5,642 GBP
Retailer 6£7,076 GBP
MOH London£9,296 GBP
Retailer 10£10,535 GBP

14 data points across 10 retailers

10 retailers£2,066 GBP to £9,296 GBP

B+
Cheapest Retailer
-
£2,066 GBP
B
Retailer 2
-
£3,949 GBP
View
B
Retailer 3
-
£4,138 GBP
View
B
Retailer 4
-
£4,422 GBP
View
Final sale: no returns
Retailer 5
-
£4,581 GBP
View
Price last confirmed 25 days ago
B
Retailer 6
-
£4,581 GBP
View
B
Retailer 7
-
£5,438 GBP
View
B
Retailer 8
-
£5,642 GBP
View
B
Retailer 9
-
£7,076 GBP
View
Most Expensive
B
MOH London
LG499190405 · Nov 5
£9,296 GBP
View
9 more retailers have this diamond
Prices start from £2,066 GBPSave up to £7,231 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.

B+
3.00ct Round
£2,066 GBP