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Cushion|Lab Grown|IGI

3.06ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG743506423

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG743506423

Diamond specifications and retailer prices

From $336 USD
As of October 27, 2026
Save $3,284 USD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,620 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion 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 LG743506423 or 743506423. Listed at 13 retailers as of October 27, 2026, with prices from $336 to $3,620, a $3,284 spread on the same certified stone. Brilliant Earth lists it at $3,620. 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

3.06
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743506423
Dimensions9.73 × 7.27 × 4.88 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm7.27 mm3.06 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743506423
Side View
Table 63.0%Crown 34.7°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Oct 27
Current: $3,620 USD|Low: $336 USD|High: $3,620 USD|Avg: $1,042 USD
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
October 29, 2026
Retailer 6$336 USD
Retailer 5$410 USD
Retailer 8$499 USD
Retailer 2$580 USD
Retailer 13$608 USD
Retailer 9$658 USD
Retailer 4$694 USD
Retailer 3$927 USD
Retailer 12$964 USD
Retailer 14$1,078 USD
Retailer 7$1,174 USD
Retailer 10$1,496 USD
Retailer 11$1,955 USD
Brilliant Earth$3,620 USD

42 data points across 14 retailers

13 retailers$336 USD to $3,620 USD

A
Cheapest Retailer
-
$336 USD
Final sale: no returns
A
Retailer 2
-
$410 USD
HK$3,200 HKD
View
A
Retailer 3
-
$499 USD
£393 GBP
View
A
Retailer 4
-
$580 USD
€552 EUR
View
B+
Retailer 5
-
$608 USD
View
A
Retailer 6
-
$658 USD
£518 GBP
View
A
Retailer 7
-
$694 USD
View
A
Retailer 8
-
$927 USD
View
B+
Retailer 9
-
$964 USD
View
B+
Retailer 10
-
$1,174 USD
SGD 1,587 SGD
View
B+
Retailer 11
-
$1,496 USD
£1,178 GBP
View
B+
Retailer 12
-
$1,955 USD
View
Most Expensive
B
Brilliant Earth
16747395A · Oct 28
$3,620 USD
View
12 more retailers have this diamond
Prices start from $336 USDSave up to $3,284 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
3.06ct Cushion
$336 USD