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Cushion|Lab Grown|IGI

3.09ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG657418549

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG657418549

Diamond specifications and retailer prices

From $720 USD
£567 GBP
As of October 30, 2026
Save $4,670 USD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,390 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG657418549 or 657418549. Listed at 13 retailers as of October 28, 2026, with prices from $720 to $5,390, a $4,670 spread on the same certified stone. Brilliant Earth lists it at $5,390. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
E
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657418549
Dimensions8.58 × 8.45 × 5.53 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm8.45 mm3.09 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657418549
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

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 30
Current: $5,390 USD|Low: $517 USD|High: $5,550 USD|Avg: $1,700 USD|-2.9%
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
October 30, 2026
Retailer 4$600 USD
Retailer 2$720 USD
Retailer 10$840 USD
Retailer 7$867 USD
Retailer 3$935 USD
Retailer 11$972 USD
Retailer 6$997 USD
Retailer 12$1,236 USD
Retailer 13$1,957 USD
Retailer 5$2,246 USD
Retailer 9$2,370 USD
Retailer 8$2,508 USD
Brilliant Earth$5,390 USD

34 data points across 13 retailers

13 retailers$720 USD to $5,390 USD

Retailer 1
-
$600 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$720 USD
£567 GBP
View
A
Retailer 3
-
$840 USD
View
A
Retailer 4
-
$867 USD
€826 EUR
View
A
Retailer 5
-
$935 USD
View
A
Retailer 6
-
$972 USD
View
A
Retailer 7
-
$997 USD
£785 GBP
View
A
Retailer 8
-
$1,236 USD
View
Retailer 9
-
$1,957 USD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$2,246 USD
View
Retailer 11
-
$2,370 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$2,508 USD
£1,975 GBP
View
Most Expensive
B
Brilliant Earth
11925065A · Oct 28
$5,390 USD
View
12 more retailers have this diamond
Prices start from $720 USDSave up to $4,670 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
3.09ct Cushion
$720 USD