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Cushion|Lab Grown|IGI

3.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG647438813

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG647438813

Diamond specifications and retailer prices

From $694 USD
As of November 1, 2026
Save $4,976 USD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,670 USD at Brilliant Earth · As of November 2, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG647438813 or 647438813. Listed at 15 retailers as of November 1, 2026, with prices from $694 to $5,670, a $4,976 spread on the same certified stone. Brilliant Earth lists it at $5,670. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.09
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647438813
Dimensions8.21 × 8.21 × 5.42 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
8.21 mm8.21 mm3.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647438813
Side View
Table 66.0%Crown 38.1°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $5,670 USD|Low: $694 USD|High: $6,310 USD|Avg: $2,294 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
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 3$694 USD
Retailer 13$900 USD
Retailer 9$970 USD
Retailer 4$982 USD
Retailer 7$993 USD
Retailer 6$1,019 USD
Retailer 2$1,274 USD
Retailer 11$1,796 USD
Retailer 15$1,847 USD
Retailer 16$2,458 USD
Retailer 5$2,469 USD
Retailer 12$2,518 USD
Retailer 8$2,854 USD
Retailer 10$3,350 USD
Retailer 14$5,520 USD
Brilliant Earth$5,670 USD

9 data points across 16 retailers

15 retailers$694 USD to $5,670 USD

A
Cheapest Retailer
-
$694 USD
Final sale: no returns
A
Retailer 2
-
$900 USD
View
A
Retailer 3
-
$970 USD
£764 GBP
View
Retailer 4
-
$982 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$993 USD
View
A
Retailer 6
-
$1,019 USD
View
A
Retailer 7
-
$1,274 USD
£1,003 GBP
View
B+
Retailer 8
-
$1,796 USD
A$2,763 AUD
View
B+
Retailer 9
-
$1,847 USD
ZAR 29,832 ZAR
View
B
Retailer 10
-
$2,458 USD
View
B
Retailer 11
-
$2,518 USD
View
B
Retailer 12
-
$2,854 USD
View
B
Retailer 13
-
$3,350 USD
£2,638 GBP
View
B
Retailer 14
-
$5,520 USD
View
Most Expensive
B
Brilliant Earth
18588578A · Nov 2
$5,670 USD
View
14 more retailers have this diamond
Prices start from $694 USDSave up to $4,976 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
$694 USD