Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG837675200

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG837675200

Diamond specifications and retailer prices

From $3,930 USD
As of October 31, 2026
14 retailers carry this diamond
Most expensive: $3,930 USD at Brilliant Earth
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 LG837675200 or 837675200. Listed at 14 retailers as of October 31, 2026. 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
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837675200
Dimensions11.48 × 8.27 × 5.03 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.48 mm8.27 mm4.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837675200
Side View
Table 66.0%Crown 36.4°Girdle: MED-THKPavilion 33.6°Culet: NoneDepth 60.8%

Caratlytics Score

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Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $3,930 USD|Low: $594 USD|High: $3,950 USD|Avg: $1,774 USD|-0.5%
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
Retailer 17
Retailer 18
Retailer 19
October 26, 2026
Retailer 2$594 USD
Retailer 9$640 USD
Retailer 18$820 USD
Retailer 7$1,025 USD
Retailer 19$1,031 USD
Retailer 16$1,091 USD
Retailer 12$1,101 USD
Retailer 17$1,402 USD
Retailer 5$1,599 USD
Retailer 15$2,057 USD
Retailer 6$2,239 USD
Retailer 3$2,268 USD
Retailer 4$2,281 USD
Retailer 8$2,295 USD
Retailer 10$3,039 USD
Retailer 14$3,085 USD
Retailer 13$3,108 USD
Retailer 11$3,189 USD
Brilliant Earth$3,930 USD

21 data points across 19 retailers

14 retailers

Retailer 1
-
$594 USD
£468 GBP
Price last confirmed 16 days ago
Retailer 2
-
$1,091 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$1,101 USD
£867 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
$1,402 USD
ZAR 22,652 ZAR
View
Price last confirmed 18 days ago
Retailer 5
-
$1,599 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$2,057 USD
£1,620 GBP
View
Price last confirmed 16 days ago
Retailer 7
-
$2,239 USD
SGD 3,026 SGD
View
Price last confirmed 16 days ago
Retailer 8
-
$2,268 USD
View
Price last confirmed 16 days ago
Retailer 9
-
$2,281 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$2,295 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$3,039 USD
A$4,675 AUD
View
Price last confirmed 24 days ago
Retailer 12
-
$3,085 USD
View
Price last confirmed 18 days ago
Retailer 13
-
$3,108 USD
£2,447 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
21808162AB · Oct 31
$3,930 USD
View
13 more retailers have this diamond

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.

B
4.09ct Cushion
$3,930 USD