CaratHunter
Plans
Oval|Lab Grown|IGI

4.03ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG831623665

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG831623665

Diamond specifications and retailer prices

From €571 EUR
$638 USD
As of October 31, 2026
Save €2,884 EUR (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,455 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.03ct lab-grown oval diamond

This 4.03ct 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 LG831623665 or 831623665. Listed at 11 retailers as of October 29, 2026, with prices from €571 to €3,455, a €2,884 spread on the same certified stone. Brilliant Earth lists it at €3,455. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831623665
Dimensions12.75 × 8.97 × 5.56 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm8.97 mm4.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831623665
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €3,455 EUR|Low: €571 EUR|High: €227,728 EUR|Avg: €6,019 EUR|+4.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10€571 EUR
Retailer 11€590 EUR
Retailer 5€752 EUR
Retailer 3€849 EUR
Retailer 4€987 EUR
Retailer 2€1,057 EUR
Retailer 8€1,568 EUR
Retailer 9€1,863 EUR
Retailer 6€2,025 EUR
Retailer 7€2,048 EUR
Brilliant Earth€3,455 EUR

26 data points across 11 retailers

11 retailers€571 EUR to €3,455 EUR

A
Cheapest Retailer
-
€571 EUR
$638 USD
Final sale: no returns
Retailer 2
-
€590 EUR
£519 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
€752 EUR
$840 USD
View
B+
Retailer 4
-
€849 EUR
$948 USD
View
A
Retailer 5
-
€987 EUR
£868 GBP
View
B+
Retailer 6
-
€1,057 EUR
View
B+
Retailer 7
-
€1,568 EUR
$1,752 USD
View
B
Retailer 8
-
€1,863 EUR
$2,081 USD
View
B
Retailer 9
-
€2,025 EUR
$2,262 USD
View
B
Retailer 10
-
€2,048 EUR
$2,288 USD
View
Most Expensive
B
Brilliant Earth
21799732A · Oct 29
€3,455 EUR
$3,860 USD
View
10 more retailers have this diamond
Prices start from €571 EURSave up to €2,884 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
4.03ct Oval
€571 EUR