Radiant|Lab Grown|IGI

4.03ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG841608434

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG841608434

Diamond specifications and retailer prices

From $980 USD
£772 GBP
As of October 23, 2026
Save $329 USD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,520 USD at MOH London · As of October 21, 2026
View at MOH London

About this 4.03ct lab-grown radiant diamond

This 4.03ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG841608434 or 841608434. Listed at 4 retailers as of October 23, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841608434
Dimensions11.52 × 7.68 × 5.26 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm7.68 mm4.03 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841608434
Side View
Table 64.0%Crown 34.9°Girdle: ThickPavilion 34.6°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: $2,520 USD|Low: $935 USD|High: $2,520 USD|Avg: $1,338 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
October 23, 2026
Retailer 4$935 USD
Retailer 2$980 USD
Retailer 3$1,309 USD
MOH London$2,520 USD

5 data points across 4 retailers

4 retailers$980 USD to $1,309 USD

B+
Retailer 1
-
$935 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$980 USD
£772 GBP
View
B+
Retailer 3
-
$1,309 USD
View
Most Expensive
B
MOH London
LG841608434 · Oct 21
$2,520 USD
£1,984 GBP
View
Price last confirmed 8 days ago
3 more retailers have this diamond
Prices start from $980 USDSave up to $329 USD

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 Radiant
$980 USD