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Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG849659608

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

Certificate IGI LG849659608

Diamond specifications and retailer prices

From $862 AUD
£476 GBP
As of November 2, 2026
Save $9,783 AUD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,645 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.09ct lab-grown cushion diamond

This 4.09ct 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 LG849659608 or 849659608. Listed at 17 retailers as of November 2, 2026, with prices from $862 to $10,645, a $9,783 spread on the same certified stone. Brilliant Earth lists it at $10,645. 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

4.09
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849659608
Dimensions9.54 × 9.19 × 5.84 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.54 mm9.19 mm4.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849659608
Side View
Table 68.0%Crown 35.3°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 63.5%

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 2
Current: $2,055 AUD|Low: $862 AUD|High: $4,507 AUD|Avg: $2,485 AUD|-0.0%
Retailer 1
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 2, 2026
Retailer 9$862 AUD
Retailer 16$1,220 AUD
Retailer 7$1,384 AUD
Retailer 2$1,483 AUD
Retailer 12$1,548 AUD
Retailer 10$1,614 AUD
Retailer 1$2,055 AUD
Retailer 15$2,069 AUD
Retailer 14$2,189 AUD
Retailer 5$2,289 AUD
Retailer 4$3,128 AUD
Retailer 3$3,261 AUD
Retailer 8$3,343 AUD
Retailer 13$4,285 AUD
Retailer 6$4,316 AUD
Retailer 11$4,483 AUD

7 data points across 16 retailers

17 retailers$862 AUD to $10,645 AUD

A
Cheapest Retailer
-
$862 AUD
£476 GBP
A
Retailer 2
-
$1,220 AUD
$855 USD
View
B+
Retailer 3
-
$1,384 AUD
$970 USD
View
A
Retailer 4
-
$1,483 AUD
$1,039 USD
View
A
Retailer 5
-
$1,548 AUD
€1,033 EUR
View
A
Retailer 6
-
$1,614 AUD
£891 GBP
View
A
Retailer 7
-
$2,055 AUD
ZAR 23,267 ZAR
View
A
Retailer 8
-
$2,069 AUD
View
B+
Retailer 9
-
$2,189 AUD
$1,534 USD
View
B+
Retailer 10
-
$2,289 AUD
$1,604 USD
View
B+
Retailer 11
-
$3,128 AUD
$2,192 USD
View
B+
Retailer 12
-
$3,261 AUD
SGD 3,088 SGD
View
B+
Retailer 13
-
$3,343 AUD
$2,343 USD
View
B
Retailer 14
-
$4,285 AUD
View
B
Retailer 15
-
$4,316 AUD
$3,025 USD
View
B
Retailer 16
-
$4,483 AUD
£2,474 GBP
View
Most Expensive
B
Brilliant Earth
22402208A · Nov 2
$10,645 AUD
$7,460 USD
View
16 more retailers have this diamond
Prices start from $862 AUDSave up to $9,783 AUD

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
4.09ct Cushion
$862 AUD