CaratHunter
Plans
Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG833631311

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG833631311

Diamond specifications and retailer prices

From HK$8,144 HKD
$1,038 USD
As of October 31, 2026
Save HK$20,035 HKD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$28,180 HKD at MOH London · As of November 1, 2026
View at MOH London

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 LG833631311 or 833631311. Listed at 14 retailers as of October 31, 2026, with prices from HK$8,144 to HK$28,180, a HK$20,035 spread on the same certified stone. MOH London lists it at HK$28,180. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833631311
Dimensions11.47 × 7.84 × 4.78 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.47 mm7.84 mm4.09 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833631311
Side View
Table 55.0%Crown 32.4°Girdle: STK-VTKPavilion 42.1°Culet: LargeDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$28,180 HKD|Low: HK$7,446 HKD|High: HK$98,745 HKD|Avg: HK$25,411 HKD|-61.2%
MOH London
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
November 2, 2026
Retailer 6HK$7,446 HKD
Retailer 5HK$8,144 HKD
Retailer 12HK$9,062 HKD
Retailer 8HK$11,451 HKD
Retailer 14HK$12,114 HKD
Retailer 9HK$12,325 HKD
Retailer 13HK$13,221 HKD
Retailer 11HK$16,003 HKD
Retailer 10HK$16,111 HKD
Retailer 2HK$16,736 HKD
Retailer 15HK$23,342 HKD
Retailer 3HK$23,876 HKD
Retailer 4HK$26,038 HKD
MOH LondonHK$28,180 HKD
Retailer 7HK$48,906 HKD

27 data points across 15 retailers

14 retailersHK$8,144 HKD to HK$28,180 HKD

Retailer 1
-
HK$7,446 HKD
$949 USD
Price last confirmed 21 days ago
A
Retailer 2
-
HK$8,144 HKD
$1,038 USD
View
Final sale: no returns
A
Retailer 3
-
HK$9,062 HKD
$1,155 USD
View
A
Retailer 4
-
HK$11,451 HKD
£1,149 GBP
View
A
Retailer 5
-
HK$12,114 HKD
$1,544 USD
View
A
Retailer 6
-
HK$12,325 HKD
€1,496 EUR
View
B+
Retailer 7
-
HK$13,221 HKD
$1,685 USD
View
B+
Retailer 8
-
HK$16,003 HKD
ZAR 32,950 ZAR
View
B+
Retailer 9
-
HK$16,111 HKD
A$3,159 AUD
View
B+
Retailer 10
-
HK$16,736 HKD
$2,133 USD
View
B
Retailer 11
-
HK$23,342 HKD
$2,975 USD
View
B
Retailer 12
-
HK$23,876 HKD
$3,043 USD
View
B
Retailer 13
-
HK$26,038 HKD
$3,319 USD
View
Most Expensive
B
MOH London
LG833631311 · Nov 1
HK$28,180 HKD
£2,828 GBP
View
13 more retailers have this diamond
Prices start from HK$8,144 HKDSave up to HK$20,035 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$8,144 HKD