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Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG840612367

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840612367

Diamond specifications and retailer prices

From HK$4,755 HKD
£477 GBP
As of October 27, 2026
Save HK$35,182 HKD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$39,937 HKD 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 LG840612367 or 840612367. Listed at 20 retailers as of October 27, 2026, with prices from HK$4,755 to HK$39,937, a HK$35,182 spread on the same certified stone. Brilliant Earth lists it at HK$39,937. 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 angle34.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612367
Dimensions11.25 × 7.96 × 5.38 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.25 mm7.96 mm4.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840612367
Side View
Table 63.0%Crown 34.8°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 67.6%

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: Oct 27
Current: HK$39,937 HKD|Low: HK$4,739 HKD|High: HK$45,586 HKD|Avg: HK$15,326 HKD|-12.4%
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
Retailer 20
Retailer 21
November 2, 2026
Retailer 19HK$4,755 HKD
Retailer 11HK$5,116 HKD
Retailer 16HK$5,925 HKD
Retailer 18HK$6,551 HKD
Retailer 13HK$7,909 HKD
Retailer 5HK$8,152 HKD
Retailer 7HK$8,733 HKD
Retailer 20HK$8,821 HKD
Retailer 3HK$11,200 HKD
Retailer 2HK$12,303 HKD
Retailer 6HK$12,585 HKD
Retailer 4HK$16,501 HKD
Retailer 15HK$17,204 HKD
Retailer 8HK$18,088 HKD
Retailer 9HK$18,117 HKD
Retailer 10HK$18,383 HKD
Retailer 12HK$23,842 HKD
Retailer 17HK$23,907 HKD
Retailer 14HK$24,205 HKD
Retailer 21HK$24,682 HKD
Brilliant EarthHK$39,937 HKD

31 data points across 21 retailers

20 retailersHK$4,755 HKD to HK$39,937 HKD

A
Cheapest Retailer
-
HK$4,755 HKD
£477 GBP
A
Retailer 2
-
HK$5,925 HKD
View
Retailer 3
-
HK$6,551 HKD
$835 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
HK$7,909 HKD
€960 EUR
View
Retailer 5
-
HK$8,152 HKD
$1,039 USD
View
Price last confirmed 7 days ago
Retailer 6
-
HK$8,733 HKD
$1,113 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
HK$8,821 HKD
£885 GBP
View
Retailer 8
-
HK$11,200 HKD
ZAR 23,060 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$12,303 HKD
$1,568 USD
View
A
Retailer 10
-
HK$12,585 HKD
$1,604 USD
View
Retailer 11
-
HK$16,501 HKD
£1,656 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
-
HK$17,204 HKD
SGD 2,963 SGD
View
Retailer 13
-
HK$18,088 HKD
$2,305 USD
View
Price last confirmed 8 days ago
Retailer 14
-
HK$18,117 HKD
$2,309 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
HK$18,383 HKD
$2,343 USD
View
Retailer 16
-
HK$23,842 HKD
A$4,675 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
HK$23,907 HKD
$3,047 USD
View
Retailer 18
-
HK$24,205 HKD
$3,085 USD
View
Price last confirmed 19 days ago
B
Retailer 19
-
HK$24,682 HKD
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
21808374A · Nov 2
HK$39,937 HKD
$5,090 USD
View
19 more retailers have this diamond
Prices start from HK$4,755 HKDSave up to HK$35,182 HKD

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
HK$4,755 HKD