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Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG831618905

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831618905

Diamond specifications and retailer prices

From HK$5,456 HKD
£548 GBP
As of October 30, 2026
Save HK$19,436 HKD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$69,362 HKD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831618905 or 831618905. Listed at 17 retailers as of October 29, 2026, with a 356% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.05
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831618905
Dimensions16.01 × 8.28 × 5.28 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.01 mm8.28 mm4.05 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831618905
Side View
Table 60.0%Crown 34.2°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 63.8%

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$69,362 HKD|Low: HK$5,438 HKD|High: HK$69,362 HKD|Avg: HK$17,422 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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 2HK$5,456 HKD
Retailer 9HK$6,089 HKD
Retailer 4HK$7,689 HKD
Retailer 10HK$10,100 HKD
Retailer 17HK$10,247 HKD
Retailer 13HK$10,842 HKD
Retailer 12HK$13,421 HKD
Retailer 14HK$13,587 HKD
Retailer 8HK$14,053 HKD
Retailer 15HK$15,528 HKD
Retailer 16HK$19,611 HKD
Retailer 3HK$20,695 HKD
Retailer 6HK$21,499 HKD
Retailer 7HK$21,744 HKD
Retailer 11HK$24,892 HKD
Retailer 5HK$25,077 HKD
Brilliant EarthHK$69,362 HKD

23 data points across 17 retailers

17 retailersHK$5,456 HKD to HK$24,892 HKD

A
Cheapest Retailer
-
HK$5,456 HKD
£548 GBP
A
Retailer 2
-
HK$6,089 HKD
$776 USD
View
Final sale: no returns
A
Retailer 3
-
HK$7,689 HKD
$980 USD
View
A
Retailer 4
-
HK$10,100 HKD
£1,014 GBP
View
A
Retailer 5
-
HK$10,247 HKD
$1,306 USD
View
A
Retailer 6
-
HK$10,842 HKD
€1,316 EUR
View
A
Retailer 7
-
HK$13,421 HKD
ZAR 27,632 ZAR
View
Retailer 8
-
HK$13,587 HKD
A$2,664 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$14,053 HKD
$1,791 USD
View
B+
Retailer 10
-
HK$15,528 HKD
$1,979 USD
View
B
Retailer 11
-
HK$19,611 HKD
£1,968 GBP
View
B+
Retailer 12
-
HK$20,695 HKD
$2,638 USD
View
B+
Retailer 13
-
HK$21,499 HKD
$2,740 USD
View
B+
Retailer 14
-
HK$21,744 HKD
$2,771 USD
View
B
Retailer 15
-
HK$24,892 HKD
£2,498 GBP
View
Retailer 16
-
HK$25,077 HKD
A$4,917 AUD
View
Price last confirmed 21 days ago
Most Expensive
Brilliant Earth
21799680A · Oct 22
HK$69,362 HKD
$8,840 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from HK$5,456 HKDSave up to HK$19,436 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
4.05ct Marquise
HK$5,456 HKD