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Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG837637820

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG837637820

Diamond specifications and retailer prices

From $2,086 AUD
$1,462 USD
As of November 1, 2026
Save $9,358 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,444 AUD at Brilliant Earth · As of October 30, 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 top-tier cut grade and certified by IGI LG837637820 or 837637820. Listed at 14 retailers as of October 30, 2026, with prices from $2,086 to $11,444, a $9,358 spread on the same certified stone. Brilliant Earth lists it at $11,444. 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

4.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837637820
Dimensions11.13 × 8.53 × 5.50 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.13 mm8.53 mm4.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837637820
Side View
Table 49.0%Crown 36.5°Girdle: STK-THKPavilion 40.1°Culet: LargeDepth 64.5%

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: Nov 1
Current: $11,444 AUD|Low: $2,086 AUD|High: $11,444 AUD|Avg: $4,296 AUD
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
November 2, 2026
Retailer 14$2,086 AUD
Retailer 13$2,404 AUD
Retailer 4$2,502 AUD
Retailer 6$2,634 AUD
Retailer 8$3,047 AUD
Retailer 7$3,420 AUD
Retailer 2$3,444 AUD
Retailer 10$4,601 AUD
Retailer 11$4,638 AUD
Retailer 9$6,203 AUD
Retailer 12$6,425 AUD
Retailer 3$7,236 AUD
Retailer 5$7,590 AUD
Brilliant Earth$11,444 AUD

31 data points across 14 retailers

14 retailers$2,086 AUD to $11,444 AUD

A
Cheapest Retailer
-
$2,086 AUD
$1,462 USD
Final sale: no returns
A
Retailer 2
-
$2,404 AUD
$1,685 USD
View
B+
Retailer 3
-
$2,502 AUD
HK$13,700 HKD
View
B+
Retailer 4
-
$2,634 AUD
$1,846 USD
View
B+
Retailer 5
-
$3,047 AUD
£1,681 GBP
View
B+
Retailer 6
-
$3,420 AUD
$2,397 USD
View
B+
Retailer 7
-
$3,444 AUD
€2,299 EUR
View
B
Retailer 8
-
$4,601 AUD
ZAR 52,087 ZAR
View
Retailer 9
-
$4,638 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$6,203 AUD
$4,347 USD
View
B
Retailer 11
-
$6,425 AUD
$4,503 USD
View
B
Retailer 12
-
$7,236 AUD
SGD 6,853 SGD
View
B
Retailer 13
-
$7,590 AUD
$5,319 USD
View
Most Expensive
B
Brilliant Earth
22337186A · Oct 30
$11,444 AUD
$8,020 USD
View
13 more retailers have this diamond
Prices start from $2,086 AUDSave up to $9,358 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
$2,086 AUD