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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 $384 USD
As of October 29, 2026
Save $1,456 USD (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,840 USD 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 12 retailers as of October 28, 2026, with prices from $384 to $1,840, a $1,456 spread on the same certified stone. Rare Carat lists it at $1,840. 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: $1,840 USD|Low: $384 USD|High: $4,340 USD|Avg: $1,479 USD|-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
October 30, 2026
Retailer 7$384 USD
Retailer 4$430 USD
Retailer 3$476 USD
Retailer 11$525 USD
Retailer 13$757 USD
Retailer 8$758 USD
Retailer 9$759 USD
Retailer 10$800 USD
Retailer 2$859 USD
Retailer 12$1,167 USD
Retailer 14$1,529 USD
Rare Carat$1,840 USD
Retailer 5$4,300 USD
Retailer 6$4,340 USD

4 data points across 14 retailers

12 retailers$384 USD to $1,840 USD

A
Cheapest Retailer
-
$384 USD
A
Retailer 2
-
$430 USD
View
A
Retailer 3
-
$476 USD
View
A
Retailer 4
-
$525 USD
HK$4,100 HKD
View
B+
Retailer 5
-
$757 USD
View
A
Retailer 6
-
$758 USD
€722 EUR
View
A
Retailer 7
-
$759 USD
£598 GBP
View
A
Retailer 8
-
$800 USD
View
A
Retailer 9
-
$859 USD
£676 GBP
View
B+
Retailer 10
-
$1,167 USD
View
B
Retailer 11
-
$1,529 USD
View
Most Expensive
B
Rare Carat
KI7154617KF654 · Oct 28
$1,840 USD
View
11 more retailers have this diamond
Prices start from $384 USDSave up to $1,456 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
3.40ct Round
$384 USD