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Oval|Lab Grown|IGI

4.04ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG645423290

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG645423290

Diamond specifications and retailer prices

From €451 EUR
$504 USD
As of October 29, 2026
Save €1,895 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €6,337 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.04ct lab-grown oval diamond

This 4.04ct lab-grown oval 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 LG645423290 or 645423290. Listed at 16 retailers as of October 29, 2026, with a 420% 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

4.04
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645423290
Dimensions13.53 × 8.97 × 5.46 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.53 mm8.97 mm4.04 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645423290
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: €6,337 EUR|Low: €433 EUR|High: €6,525 EUR|Avg: €1,488 EUR|-2.9%
Brilliant Earth
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
Retailer 16
October 31, 2026
Retailer 5€451 EUR
Retailer 12€505 EUR
Retailer 15€522 EUR
Retailer 3€559 EUR
Retailer 16€559 EUR
Retailer 10€685 EUR
Retailer 6€869 EUR
Retailer 2€872 EUR
Retailer 7€916 EUR
Retailer 9€923 EUR
Retailer 13€1,443 EUR
Retailer 4€1,471 EUR
Retailer 8€1,850 EUR
Retailer 11€2,346 EUR
Retailer 14€2,627 EUR
Brilliant Earth€6,337 EUR

38 data points across 16 retailers

16 retailers€451 EUR to €2,346 EUR

A
Cheapest Retailer
-
€451 EUR
$504 USD
A
Retailer 2
-
€505 EUR
$564 USD
View
Retailer 3
-
€522 EUR
£459 GBP
View
Price last confirmed 14 days ago
Retailer 4
-
€559 EUR
$625 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€559 EUR
$625 USD
View
A
Retailer 6
-
€685 EUR
$765 USD
View
B+
Retailer 7
-
€869 EUR
$971 USD
View
A
Retailer 8
-
€872 EUR
View
A
Retailer 9
-
€916 EUR
$1,023 USD
View
A
Retailer 10
-
€923 EUR
£812 GBP
View
B
Retailer 11
-
€1,443 EUR
$1,612 USD
View
B+
Retailer 12
-
€1,471 EUR
$1,643 USD
View
B
Retailer 13
-
€1,850 EUR
$2,067 USD
View
B
Retailer 14
-
€2,346 EUR
£2,064 GBP
View
Retailer 15
-
€2,627 EUR
$2,935 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
11352070A · Oct 29
€6,337 EUR
$7,080 USD
View
Price under review
15 more retailers have this diamond
Prices start from €451 EURSave up to €1,895 EUR

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
4.04ct Oval
€451 EUR