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Cushion|Lab Grown|IGI

3.01ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG754522117

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG754522117

Diamond specifications and retailer prices

From $507 USD
As of November 6, 2026
Save $3,143 USD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,650 USD at Brilliant Earth · As of November 7, 2026
View at Brilliant Earth

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion 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 LG754522117 or 754522117. Listed at 16 retailers as of November 6, 2026, with prices from $507 to $3,650, a $3,143 spread on the same certified stone. Brilliant Earth lists it at $3,650. 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

3.01
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754522117
Dimensions8.63 × 8.62 × 5.51 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
8.63 mm8.62 mm3.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754522117
Side View
Table 63.0%Crown 38.6°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.9%

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: Nov 6
Current: $3,650 USD|Low: $463 USD|High: $3,650 USD|Avg: $1,296 USD|+2.2%
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 7, 2026
Retailer 11$507 USD
Retailer 4$518 USD
Retailer 9$665 USD
Retailer 5$817 USD
Retailer 3$819 USD
Retailer 8$847 USD
Retailer 10$906 USD
Retailer 15$995 USD
Retailer 13$1,327 USD
Retailer 7$1,700 USD
Retailer 2$1,800 USD
Retailer 6$1,889 USD
Retailer 12$1,899 USD
Retailer 14$1,945 USD
Brilliant Earth$3,650 USD

43 data points across 15 retailers

16 retailers$507 USD to $3,650 USD

A
Cheapest Retailer
-
$507 USD
Final sale: no returns
A
Retailer 2
-
$518 USD
View
A
Retailer 3
-
$665 USD
View
B+
Retailer 4
-
$817 USD
View
A
Retailer 5
-
$819 USD
View
A
Retailer 6
-
$847 USD
View
A
Retailer 7
-
$906 USD
View
A
Retailer 8
-
$995 USD
View
B+
Retailer 9
-
$1,327 USD
View
B+
Retailer 10
-
$1,700 USD
View
B
Retailer 11
-
$1,800 USD
View
B
Retailer 12
-
$1,889 USD
View
B+
Retailer 13
-
$1,899 USD
View
B
Retailer 14
-
$1,945 USD
View
B
Retailer 15
-
$3,620 USD
View
Most Expensive
B
Brilliant Earth
20624929A · Nov 7
$3,650 USD
View
15 more retailers have this diamond
Prices start from $507 USDSave up to $3,143 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
3.01ct Cushion
$507 USD