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$71,431 HKD

$9,104 USD

As of November 2, 2026

Save HK$222,214 HKD (76%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: HK$293,645 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$71,431 to HK$293,645, a HK$222,214 spread on the same certified stone. Taylor and Hart lists it at HK$293,645. 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

Colour

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG812649300

Side View

Caratlytics Score

How it works →

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 2

Current: HK$452,092 HKD|Low: HK$70,199 HKD|High: HK$452,092 HKD|Avg: HK$149,036 HKD

Retailer 1

Retailer 2

Retailer 3

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Retailer 5

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Taylor and Hart

November 2, 2026

Retailer 15HK$70,199 HKD

Retailer 8HK$71,431 HKD

Retailer 4HK$72,647 HKD

Retailer 17HK$76,044 HKD

Retailer 27HK$77,111 HKD

Retailer 14HK$84,824 HKD

Retailer 18HK$84,824 HKD

Retailer 24HK$86,503 HKD

Retailer 25HK$86,503 HKD

Retailer 3HK$91,996 HKD

Retailer 26HK$93,596 HKD

Retailer 16HK$95,393 HKD

Retailer 23HK$96,993 HKD

Retailer 12HK$115,868 HKD

Retailer 2HK$131,085 HKD

Retailer 13HK$134,245 HKD

Retailer 20HK$134,374 HKD

Retailer 9HK$139,424 HKD

Retailer 5HK$146,487 HKD

Retailer 22HK$152,876 HKD

Retailer 10HK$157,926 HKD

Retailer 6HK$181,402 HKD

Retailer 28HK$207,163 HKD

Retailer 19HK$221,778 HKD

Retailer 7HK$242,649 HKD

Retailer 11HK$245,886 HKD

Taylor and HartHK$293,645 HKD

Retailer 21HK$427,966 HKD

Retailer 1HK$452,092 HKD

22 data points across 29 retailers

23 retailersHK$71,431 HKD to HK$293,645 HKD

Retailer 1

HK$70,199 HKD

$8,947 USD

Price last confirmed 31 days ago

Retailer 2

HK$71,431 HKD

$9,104 USD

View

Retailer 3

HK$72,647 HKD

$9,259 USD

View

Retailer 4

HK$77,111 HKD

CA$13,650 CAD

View

Retailer 5

HK$82,792 HKD

$10,552 USD

View

Retailer 6

HK$84,824 HKD

$10,811 USD

View

Price last confirmed 30 days ago

Retailer 7

HK$86,503 HKD

$11,025 USD

View

Retailer 8

HK$86,503 HKD

$11,025 USD

View

Retailer 9

HK$93,596 HKD

$11,929 USD

View

Final sale: no returns

Retailer 10

HK$95,393 HKD

$12,158 USD

View

Price last confirmed 33 days ago

Retailer 11

HK$96,993 HKD

$12,362 USD

View

B+

Retailer 12

HK$115,868 HKD

£11,628 GBP

View

B+

Retailer 13

HK$131,085 HKD

$16,707 USD

View

B+

Retailer 14

HK$139,424 HKD

£13,992 GBP

View

B+

Retailer 15

HK$146,487 HKD

$18,670 USD

View

B+

Retailer 16

HK$152,876 HKD

£15,342 GBP

View

B+

Retailer 17

HK$157,926 HKD

$20,128 USD

View

Retailer 18

HK$181,402 HKD

$23,120 USD

View

Retailer 19

HK$207,163 HKD

ZAR 426,548 ZAR

View

Retailer 20

HK$242,649 HKD

$30,926 USD

View

Retailer 21

HK$245,886 HKD

$31,339 USD

View

Most Expensive

Taylor and Hart

5S5SWTS · Oct 31

HK$293,645 HKD

$37,426 USD

View

21 more retailers have this diamond

Prices start from HK$71,431 HKDSave up to HK$222,214 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.

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4.54ct Marquise

HK$71,431 HKD