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Emerald|Lab Grown|IGI

4.03ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG642416470

Shape and cutting style on the report: Emerald cut

Certificate IGI LG642416470

Diamond specifications and retailer prices

From £310 GBP
$416 USD
As of November 2, 2026
Save £1,354 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,664 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 4.03ct lab-grown emerald diamond

This 4.03ct lab-grown emerald sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG642416470 or 642416470. Listed at 12 retailers as of November 1, 2026, with prices from £310 to £1,664, a £1,354 spread on the same certified stone. Rare Carat lists it at £1,664. 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

4.03
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642416470
Dimensions11.21 × 7.45 × 4.96 mm
L/W Ratio1.50
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.21 mm7.45 mm4.03 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642416470
Side View
Table 67.0%Crown 38.6°Girdle: MediumPavilion 40.7°Culet: LargeDepth 66.6%

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 2
Current: £1,664 GBP|Low: £310 GBP|High: £3,470 GBP|Avg: £1,185 GBP|-34.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 10£310 GBP
Retailer 4£348 GBP
Retailer 12£385 GBP
Retailer 14£430 GBP
Retailer 11£493 GBP
Retailer 3£608 GBP
Retailer 2£629 GBP
Retailer 13£643 GBP
Retailer 6£728 GBP
Retailer 9£1,081 GBP
Retailer 15£1,239 GBP
Retailer 8£1,416 GBP
Rare Carat£1,664 GBP
Retailer 7£3,170 GBP
Retailer 5£3,470 GBP

7 data points across 15 retailers

12 retailers£310 GBP to £1,664 GBP

A
Cheapest Retailer
-
£310 GBP
$416 USD
A
Retailer 2
-
£348 GBP
$466 USD
View
A
Retailer 3
-
£385 GBP
$516 USD
View
A
Retailer 4
-
£430 GBP
HK$4,500 HKD
View
A
Retailer 5
-
£493 GBP
$660 USD
View
B+
Retailer 6
-
£608 GBP
$815 USD
View
A
Retailer 7
-
£629 GBP
View
A
Retailer 8
-
£643 GBP
$862 USD
View
B+
Retailer 9
-
£1,081 GBP
$1,449 USD
View
B
Retailer 10
-
£1,239 GBP
$1,660 USD
View
B
Retailer 11
-
£1,416 GBP
View
Most Expensive
B
Rare Carat
KI4704164KF642 · Nov 1
£1,664 GBP
$2,230 USD
View
11 more retailers have this diamond
Prices start from £310 GBPSave up to £1,354 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
4.03ct Emerald
£310 GBP