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Round|Lab Grown|IGI

3.40ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG654461715

Shape and cutting style on the report: Round brilliant

Certificate IGI LG654461715

Diamond specifications and retailer prices

From €344 EUR
$384 USD
As of October 29, 2026
Save €1,303 EUR (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,647 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.4ct lab-grown round diamond

This 3.4ct lab-grown round 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 LG654461715 or 654461715. Listed at 13 retailers as of October 28, 2026, with prices from €344 to €1,647, a €1,303 spread on the same certified stone. Rare Carat lists it at €1,647. 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

3.40
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654461715
Dimensions9.63 × 9.59 × 5.98 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.63 mm9.59 mm3.40 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654461715
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.2%

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 29
Current: €1,647 EUR|Low: €344 EUR|High: €3,885 EUR|Avg: €1,295 EUR|-17.0%
Rare Carat
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 10€344 EUR
Retailer 5€385 EUR
Retailer 4€426 EUR
Retailer 13€470 EUR
Retailer 9€678 EUR
Retailer 15€678 EUR
Retailer 11€679 EUR
Retailer 12€716 EUR
Retailer 2€769 EUR
Retailer 14€1,045 EUR
Retailer 8€1,195 EUR
Retailer 3€1,369 EUR
Rare Carat€1,647 EUR
Retailer 6€3,849 EUR
Retailer 7€3,885 EUR

5 data points across 15 retailers

13 retailers€344 EUR to €1,647 EUR

A
Cheapest Retailer
-
€344 EUR
$384 USD
A
Retailer 2
-
€385 EUR
$430 USD
View
A
Retailer 3
-
€426 EUR
$476 USD
View
A
Retailer 4
-
€470 EUR
HK$4,100 HKD
View
A
Retailer 5
-
€678 EUR
£596 GBP
View
B+
Retailer 6
-
€678 EUR
$757 USD
View
A
Retailer 7
-
€679 EUR
View
A
Retailer 8
-
€716 EUR
$800 USD
View
A
Retailer 9
-
€769 EUR
£676 GBP
View
B+
Retailer 10
-
€1,045 EUR
$1,167 USD
View
B+
Retailer 11
-
€1,195 EUR
$1,335 USD
View
B
Retailer 12
-
€1,369 EUR
$1,529 USD
View
Most Expensive
B
Rare Carat
KI7154617KF654 · Oct 28
€1,647 EUR
$1,840 USD
View
12 more retailers have this diamond
Prices start from €344 EURSave up to €1,303 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
3.40ct Round
€344 EUR