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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 $1,870 SGD
$1,462 USD
As of November 1, 2026
Save $8,387 SGD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,257 SGD 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 $1,870 to $10,257, a $8,387 spread on the same certified stone. Brilliant Earth lists it at $10,257. 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

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 1
Current: $10,257 SGD|Low: $1,870 SGD|High: $10,257 SGD|Avg: $3,851 SGD
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$1,870 SGD
Retailer 13$2,155 SGD
Retailer 4$2,243 SGD
Retailer 6$2,361 SGD
Retailer 8$2,731 SGD
Retailer 7$3,066 SGD
Retailer 2$3,087 SGD
Retailer 10$4,123 SGD
Retailer 11$4,157 SGD
Retailer 9$5,559 SGD
Retailer 12$5,759 SGD
Retailer 3$6,486 SGD
Retailer 5$6,803 SGD
Brilliant Earth$10,257 SGD

31 data points across 14 retailers

14 retailers$1,870 SGD to $10,257 SGD

A
Cheapest Retailer
-
$1,870 SGD
$1,462 USD
Final sale: no returns
A
Retailer 2
-
$2,155 SGD
$1,685 USD
View
B+
Retailer 3
-
$2,243 SGD
HK$13,700 HKD
View
B+
Retailer 4
-
$2,361 SGD
$1,846 USD
View
B+
Retailer 5
-
$2,731 SGD
£1,681 GBP
View
B+
Retailer 6
-
$3,066 SGD
$2,397 USD
View
B+
Retailer 7
-
$3,087 SGD
€2,299 EUR
View
B
Retailer 8
-
$4,123 SGD
ZAR 52,087 ZAR
View
Retailer 9
-
$4,157 SGD
A$5,001 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$5,559 SGD
$4,347 USD
View
B
Retailer 11
-
$5,759 SGD
$4,503 USD
View
B
Retailer 12
-
$6,486 SGD
View
B
Retailer 13
-
$6,803 SGD
$5,319 USD
View
Most Expensive
B
Brilliant Earth
22337186A · Oct 30
$10,257 SGD
$8,020 USD
View
13 more retailers have this diamond
Prices start from $1,870 SGDSave up to $8,387 SGD

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
$1,870 SGD