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Cushion|Lab Grown|IGI

5.40ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG819642920

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819642920

Diamond specifications and retailer prices

From HK$9,460 HKD
£949 GBP
As of October 30, 2026
Save HK$46,793 HKD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$56,254 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.4ct lab-grown cushion diamond

This 5.4ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819642920 or 819642920. Listed at 16 retailers as of October 30, 2026, with prices from HK$9,460 to HK$56,254, a HK$46,793 spread on the same certified stone. Brilliant Earth lists it at HK$56,254. 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

5.40
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819642920
Dimensions11.70 × 9.00 × 5.86 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.70 mm9.00 mm5.40 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819642920
Side View
Table 64.0%Crown 33.9°Girdle: STK-THKPavilion 31.7°Culet: NoneDepth 65.1%

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 30
Current: HK$56,254 HKD|Low: HK$8,403 HKD|High: HK$100,111 HKD|Avg: HK$23,392 HKD|-43.8%
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
October 31, 2026
Retailer 6HK$8,709 HKD
Retailer 12HK$9,460 HKD
Retailer 11HK$9,509 HKD
Retailer 4HK$10,474 HKD
Retailer 14HK$12,475 HKD
Retailer 10HK$13,430 HKD
Retailer 2HK$13,865 HKD
Retailer 9HK$17,655 HKD
Retailer 13HK$17,698 HKD
Retailer 5HK$22,368 HKD
Retailer 7HK$24,033 HKD
Retailer 16HK$25,891 HKD
Retailer 15HK$29,583 HKD
Retailer 8HK$30,324 HKD
Retailer 3HK$41,849 HKD
Brilliant EarthHK$56,254 HKD

26 data points across 16 retailers

16 retailersHK$9,460 HKD to HK$56,254 HKD

Retailer 1
-
HK$8,709 HKD
$1,110 USD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$9,460 HKD
£949 GBP
View
A
Retailer 3
-
HK$9,509 HKD
$1,212 USD
View
Final sale: no returns
A
Retailer 4
-
HK$10,474 HKD
$1,335 USD
View
B+
Retailer 5
-
HK$12,475 HKD
$1,590 USD
View
A
Retailer 6
-
HK$13,430 HKD
£1,348 GBP
View
A
Retailer 7
-
HK$13,865 HKD
€1,683 EUR
View
A
Retailer 8
-
HK$17,655 HKD
A$3,462 AUD
View
A
Retailer 9
-
HK$17,698 HKD
ZAR 36,442 ZAR
View
B+
Retailer 10
-
HK$22,368 HKD
$2,851 USD
View
B+
Retailer 11
-
HK$24,033 HKD
£2,412 GBP
View
B+
Retailer 12
-
HK$25,891 HKD
$3,300 USD
View
B+
Retailer 13
-
HK$29,583 HKD
£2,969 GBP
View
B+
Retailer 14
-
HK$30,324 HKD
$3,865 USD
View
B
Retailer 15
-
HK$41,849 HKD
$5,334 USD
View
Most Expensive
B
Brilliant Earth
20916443A · Oct 31
HK$56,254 HKD
$7,170 USD
View
15 more retailers have this diamond
Prices start from HK$9,460 HKDSave up to HK$46,793 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
5.40ct Cushion
HK$9,460 HKD