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Round|Lab Grown|IGI

4.00ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG673407355

Shape and cutting style on the report: Round brilliant

Certificate IGI LG673407355

Diamond specifications and retailer prices

From €403 EUR
$450 USD
As of November 1, 2026
Save €3,025 EUR (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,428 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG673407355 or 673407355. Listed at 15 retailers as of October 31, 2026, with prices from €403 to €3,428, a €3,025 spread on the same certified stone. Brilliant Earth lists it at €3,428. 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

4.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673407355
Dimensions10.18 × 10.11 × 6.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.18 mm10.11 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673407355
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.3%

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: Nov 1
Current: €3,428 EUR|Low: €403 EUR|High: €3,858 EUR|Avg: €1,289 EUR|-11.1%
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
November 1, 2026
Retailer 2€403 EUR
Retailer 4€499 EUR
Retailer 10€499 EUR
Retailer 12€627 EUR
Retailer 3€642 EUR
Retailer 5€783 EUR
Retailer 11€807 EUR
Retailer 9€816 EUR
Retailer 6€868 EUR
Retailer 7€1,086 EUR
Retailer 14€1,342 EUR
Retailer 13€1,605 EUR
Retailer 8€1,834 EUR
Retailer 15€2,032 EUR
Brilliant Earth€3,428 EUR

35 data points across 15 retailers

15 retailers€403 EUR to €3,428 EUR

A
Cheapest Retailer
-
€403 EUR
$450 USD
Retailer 2
-
€499 EUR
$558 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
€499 EUR
$558 USD
View
A
Retailer 4
-
€627 EUR
$700 USD
View
Retailer 5
-
€642 EUR
£565 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
€783 EUR
$875 USD
View
A
Retailer 7
-
€807 EUR
View
A
Retailer 8
-
€816 EUR
£718 GBP
View
A
Retailer 9
-
€868 EUR
$970 USD
View
B+
Retailer 10
-
€1,086 EUR
$1,213 USD
View
B
Retailer 11
-
€1,342 EUR
$1,499 USD
View
B+
Retailer 12
-
€1,605 EUR
$1,793 USD
View
B
Retailer 13
-
€1,834 EUR
£1,613 GBP
View
Retailer 14
-
€2,032 EUR
$2,270 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
12844998A · Oct 31
€3,428 EUR
$3,830 USD
View
14 more retailers have this diamond
Prices start from €403 EURSave up to €3,025 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
4.00ct Round
€403 EUR