Emerald|Lab Grown|IGI

4.02ct D SI1 Emerald Lab Grown Diamond

EX • D/SI1 • IGI LG617451567

Shape and cutting style on the report: Emerald cut

Certificate IGI LG617451567

Diamond specifications and retailer prices

From £691 GBP
$926 USD
As of October 30, 2026
Save £3,593 GBP (84%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,284 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.02ct lab-grown emerald diamond

This 4.02ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617451567 or 617451567. Listed at 7 retailers as of October 30, 2026, with prices from £691 to £4,284, a £3,593 spread on the same certified stone. Brilliant Earth lists it at £4,284. 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

4.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617451567
Dimensions10.99 × 7.19 × 4.87 mm
L/W Ratio1.53
Culet sizeLong
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
10.99 mm7.19 mm4.02 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617451567
Side View
Table 66.0%Crown 39°Girdle: MediumPavilion 40.6°Culet: LNGDepth 67.7%

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: Oct 30
Current: £4,284 GBP|Low: £691 GBP|High: £4,724 GBP|Avg: £2,132 GBP|-8.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5£691 GBP
Retailer 4£839 GBP
Retailer 2£909 GBP
Retailer 7£2,047 GBP
Retailer 3£2,408 GBP
Retailer 6£4,262 GBP
Brilliant Earth£4,284 GBP

41 data points across 7 retailers

7 retailers£691 GBP to £4,284 GBP

B+
Cheapest Retailer
-
£691 GBP
$926 USD
A
Retailer 2
-
£839 GBP
$1,124 USD
View
A
Retailer 3
-
£909 GBP
View
B
Retailer 4
-
£2,047 GBP
$2,742 USD
View
B
Retailer 5
-
£2,408 GBP
View
Retailer 6
-
£4,262 GBP
$5,710 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
18830440A · Oct 30
£4,284 GBP
$5,740 USD
View
6 more retailers have this diamond
Prices start from £691 GBPSave up to £3,593 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
4.02ct Emerald
£691 GBP