Marquise|Lab Grown|IGI

5.51ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG752586341

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752586341

Diamond specifications and retailer prices

From HK$8,285 HKD

$1,056 USD

As of October 29, 2026

Save HK$42,241 HKD (84%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: HK$99,170 HKD at Brilliant Earth · As of October 22, 2026

View at Brilliant Earth

About this 5.51ct lab-grown marquise diamond

This 5.51ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG752586341 or 752586341. Listed at 15 retailers as of October 29, 2026, with a 510% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.51

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle30.1°

Pavilion angle37.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG752586341

Dimensions18.69 × 9.56 × 5.35 mm

L/W Ratio1.96

Girdle conditionFaceted

Culet sizePointed

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 LG752586341

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: Oct 29

Current: HK$50,526 HKD|Low: HK$6,379 HKD|High: HK$102,229 HKD|Avg: HK$29,113 HKD|-50.6%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

October 30, 2026

Retailer 7HK$8,285 HKD

Retailer 2HK$10,317 HKD

Retailer 5HK$12,710 HKD

Retailer 3HK$15,586 HKD

Retailer 4HK$17,433 HKD

Retailer 8HK$23,675 HKD

Retailer 6HK$26,605 HKD

Retailer 10HK$29,795 HKD

Retailer 9HK$44,603 HKD

Brilliant EarthHK$50,526 HKD

24 data points across 10 retailers

15 retailersHK$8,285 HKD to HK$50,526 HKD

Retailer 1

HK$7,398 HKD

$943 USD

Price last confirmed 19 days ago

Retailer 2

HK$8,285 HKD

$1,056 USD

View

Final sale: no returns

Retailer 3

HK$8,583 HKD

$1,094 USD

View

Price last confirmed 20 days ago

Retailer 4

HK$8,583 HKD

$1,094 USD

View

Price last confirmed 18 days ago

Retailer 5

HK$10,317 HKD

$1,315 USD

View

B+

Retailer 6

HK$12,710 HKD

$1,620 USD

View

Retailer 7

HK$15,586 HKD

€1,892 EUR

View

Retailer 8

HK$17,433 HKD

$2,222 USD

View

B+

Retailer 9

HK$23,675 HKD

£2,376 GBP

View

Retailer 10

HK$24,126 HKD

$3,075 USD

View

Price last confirmed 20 days ago

B+

Retailer 11

HK$26,605 HKD

$3,391 USD

View

B+

Retailer 12

HK$29,795 HKD

SGD 5,132 SGD

View

Retailer 13

HK$44,603 HKD

$5,685 USD

View

Price last confirmed 23 days ago

Retailer 14

HK$50,526 HKD

$6,440 USD

View

Most Expensive

Brilliant Earth

16806716A · Oct 22

HK$99,170 HKD

$12,640 USD

View

Price under review

14 more retailers have this diamond

Prices start from HK$8,285 HKDSave up to HK$42,241 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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5.51ct Marquise

HK$8,285 HKD