CaratHunter
Plans
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 HK$11,471 HKD
$1,462 USD
As of November 1, 2026
Save HK$51,455 HKD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$62,926 HKD 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 HK$11,471 to HK$62,926, a HK$51,455 spread on the same certified stone. Brilliant Earth lists it at HK$62,926. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$62,926 HKD|Low: HK$11,471 HKD|High: HK$62,926 HKD|Avg: HK$23,623 HKD
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 14HK$11,471 HKD
Retailer 13HK$13,221 HKD
Retailer 4HK$13,759 HKD
Retailer 6HK$14,484 HKD
Retailer 8HK$16,754 HKD
Retailer 7HK$18,807 HKD
Retailer 2HK$18,940 HKD
Retailer 10HK$25,297 HKD
Retailer 11HK$25,505 HKD
Retailer 9HK$34,107 HKD
Retailer 12HK$35,329 HKD
Retailer 3HK$39,789 HKD
Retailer 5HK$41,734 HKD
Brilliant EarthHK$62,926 HKD

31 data points across 14 retailers

14 retailersHK$11,471 HKD to HK$62,926 HKD

A
Cheapest Retailer
-
HK$11,471 HKD
$1,462 USD
Final sale: no returns
A
Retailer 2
-
HK$13,221 HKD
$1,685 USD
View
B+
Retailer 3
-
HK$13,759 HKD
View
B+
Retailer 4
-
HK$14,484 HKD
$1,846 USD
View
B+
Retailer 5
-
HK$16,754 HKD
£1,681 GBP
View
B+
Retailer 6
-
HK$18,807 HKD
$2,397 USD
View
B+
Retailer 7
-
HK$18,940 HKD
€2,299 EUR
View
B
Retailer 8
-
HK$25,297 HKD
ZAR 52,087 ZAR
View
Retailer 9
-
HK$25,505 HKD
A$5,001 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
HK$34,107 HKD
$4,347 USD
View
B
Retailer 11
-
HK$35,329 HKD
$4,503 USD
View
B
Retailer 12
-
HK$39,789 HKD
SGD 6,853 SGD
View
B
Retailer 13
-
HK$41,734 HKD
$5,319 USD
View
Most Expensive
B
Brilliant Earth
22337186A · Oct 30
HK$62,926 HKD
$8,020 USD
View
13 more retailers have this diamond
Prices start from HK$11,471 HKDSave up to HK$51,455 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$11,471 HKD