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Marquise|Lab Grown|IGI

4.54ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG812649300

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812649300

Diamond specifications and retailer prices

From HK$71,427 HKD
$9,104 USD
As of October 31, 2026
Save HK$222,203 HKD (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$293,630 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.54ct lab-grown marquise diamond

This 4.54ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812649300 or 812649300. Listed at 23 retailers as of October 31, 2026, with prices from HK$71,427 to HK$293,630, a HK$222,203 spread on the same certified stone. Taylor and Hart lists it at HK$293,630. 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

4.54
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812649300
Dimensions17.65 × 8.59 × 5.27 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.65 mm8.59 mm4.54 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812649300
Side View
Table 61.0%Crown 37°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.4%

Caratlytics Score

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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$152,868 HKD|Low: HK$64,492 HKD|High: HK$452,069 HKD|Avg: HK$148,831 HKD|+1.0%
Retailer 1
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
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Taylor and Hart
November 1, 2026
Retailer 15HK$70,195 HKD
Retailer 8HK$71,427 HKD
Retailer 3HK$72,643 HKD
Retailer 17HK$76,041 HKD
Retailer 25HK$77,108 HKD
Retailer 14HK$84,820 HKD
Retailer 18HK$84,820 HKD
Retailer 22HK$86,499 HKD
Retailer 23HK$86,499 HKD
Retailer 2HK$91,991 HKD
Retailer 24HK$93,591 HKD
Retailer 16HK$95,388 HKD
Retailer 12HK$96,989 HKD
Retailer 27HK$115,506 HKD
Retailer 28HK$131,078 HKD
Retailer 13HK$134,238 HKD
Retailer 20HK$134,367 HKD
Retailer 9HK$139,417 HKD
Retailer 4HK$146,479 HKD
Retailer 1HK$152,868 HKD
Retailer 10HK$157,918 HKD
Retailer 5HK$181,393 HKD
Retailer 26HK$207,153 HKD
Retailer 19HK$221,767 HKD
Retailer 7HK$242,637 HKD
Retailer 11HK$245,873 HKD
Taylor and HartHK$293,630 HKD
Retailer 21HK$427,944 HKD
Retailer 6HK$452,069 HKD

22 data points across 29 retailers

23 retailersHK$71,427 HKD to HK$293,630 HKD

Retailer 1
-
HK$70,195 HKD
$8,947 USD
Price last confirmed 30 days ago
A
Retailer 2
-
HK$71,427 HKD
$9,104 USD
View
A
Retailer 3
-
HK$72,643 HKD
$9,259 USD
View
A
Retailer 4
-
HK$77,108 HKD
CA$13,650 CAD
View
A
Retailer 5
-
HK$82,788 HKD
$10,552 USD
View
Retailer 6
-
HK$84,820 HKD
$10,811 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
HK$86,499 HKD
$11,025 USD
View
A
Retailer 8
-
HK$86,499 HKD
$11,025 USD
View
A
Retailer 9
-
HK$93,591 HKD
$11,929 USD
View
Final sale: no returns
Retailer 10
-
HK$95,388 HKD
$12,158 USD
View
Price last confirmed 32 days ago
A
Retailer 11
-
HK$96,989 HKD
$12,362 USD
View
B+
Retailer 12
-
HK$115,506 HKD
£11,592 GBP
View
B+
Retailer 13
-
HK$131,078 HKD
$16,707 USD
View
B+
Retailer 14
-
HK$139,417 HKD
£13,992 GBP
View
B+
Retailer 15
-
HK$146,479 HKD
$18,670 USD
View
B+
Retailer 16
-
HK$152,868 HKD
£15,342 GBP
View
B+
Retailer 17
-
HK$157,918 HKD
$20,128 USD
View
B
Retailer 18
-
HK$181,393 HKD
$23,120 USD
View
B
Retailer 19
-
HK$207,153 HKD
ZAR 426,548 ZAR
View
B
Retailer 20
-
HK$242,637 HKD
$30,926 USD
View
B
Retailer 21
-
HK$245,873 HKD
$31,339 USD
View
Most Expensive
B
Taylor and Hart
5S5SWTS · Oct 31
HK$293,630 HKD
$37,426 USD
View
21 more retailers have this diamond
Prices start from HK$71,427 HKDSave up to HK$222,203 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
4.54ct Marquise
HK$71,427 HKD