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Cushion|Lab Grown|IGI

3.04ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG687530944

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG687530944

Diamond specifications and retailer prices

From $483 USD
As of October 29, 2026
Save $2,757 USD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,240 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.04ct lab-grown cushion diamond

This 3.04ct 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 LG687530944 or 687530944. Listed at 12 retailers as of October 29, 2026, with prices from $483 to $3,240, a $2,757 spread on the same certified stone. Brilliant Earth lists it at $3,240. 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

3.04
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687530944
Dimensions9.76 × 7.80 × 5.32 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.76 mm7.80 mm3.04 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687530944
Side View
Table 60.0%Crown 32.8°Girdle: THN-MEDPavilion 39.8°Culet: NoneDepth 68.2%

Caratlytics Score

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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 29
Current: $3,240 USD|Low: $473 USD|High: $3,330 USD|Avg: $1,156 USD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 4$483 USD
Retailer 10$524 USD
Retailer 7$695 USD
Retailer 11$695 USD
Retailer 3$826 USD
Retailer 2$864 USD
Retailer 5$875 USD
Retailer 9$1,244 USD
Retailer 6$1,935 USD
Retailer 8$1,980 USD
Brilliant Earth$3,240 USD

43 data points across 11 retailers

12 retailers$483 USD to $3,240 USD

A
Cheapest Retailer
-
$483 USD
Final sale: no returns
A
Retailer 2
-
$524 USD
View
A
Retailer 3
-
$695 USD
View
B+
Retailer 4
-
$695 USD
View
A
Retailer 5
-
$826 USD
View
A
Retailer 6
-
$864 USD
£680 GBP
View
A
Retailer 7
-
$875 USD
€833 EUR
View
A
Retailer 8
-
$1,013 USD
View
B+
Retailer 9
-
$1,244 USD
View
B+
Retailer 10
-
$1,935 USD
£1,524 GBP
View
B
Retailer 11
-
$1,980 USD
View
Most Expensive
B
Brilliant Earth
20628169A · Oct 29
$3,240 USD
View
11 more retailers have this diamond
Prices start from $483 USDSave up to $2,757 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
3.04ct Cushion
$483 USD