Marquise|Lab Grown|IGI

4.52ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG798609301

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG798609301

Diamond specifications and retailer prices

From £6,745 GBP

$9,037 USD

As of November 2, 2026

Save £21,080 GBP (76%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: £27,825 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.52ct lab-grown marquise diamond

This 4.52ct 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 LG798609301 or 798609301. Listed at 28 retailers as of October 31, 2026, with prices from £6,745 to £27,825, a £21,080 spread on the same certified stone. Taylor and Hart lists it at £27,825. 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

4.52

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG798609301

Dimensions16.61 × 8.57 × 5.40 mm

L/W Ratio1.94

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 LG798609301

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: £10,942 GBP|Low: £6,745 GBP|High: £44,795 GBP|Avg: £14,543 GBP|-2.3%

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Taylor and Hart

November 2, 2026

Retailer 11£6,745 GBP

Retailer 15£6,860 GBP

Retailer 8£7,179 GBP

Retailer 24£7,281 GBP

Retailer 22£7,466 GBP

Retailer 2£8,166 GBP

Retailer 5£8,328 GBP

Retailer 10£8,328 GBP

Retailer 23£8,615 GBP

Retailer 14£8,687 GBP

Retailer 18£8,837 GBP

Retailer 16£9,156 GBP

Retailer 1£10,942 GBP

Retailer 3£12,414 GBP

Retailer 20£13,859 GBP

Retailer 12£14,439 GBP

Retailer 21£14,628 GBP

Retailer 6£14,911 GBP

Retailer 4£17,126 GBP

Retailer 19£19,566 GBP

Retailer 17£22,918 GBP

Retailer 9£23,216 GBP

Retailer 7£24,075 GBP

Taylor and Hart£27,825 GBP

Retailer 13£44,795 GBP

33 data points across 25 retailers

28 retailers£6,745 GBP to £27,825 GBP

Cheapest Retailer

£6,745 GBP

$9,037 USD

Retailer 2

£6,860 GBP

$9,192 USD

View

Retailer 3

£7,179 GBP

$9,619 USD

View

Retailer 4

£7,281 GBP

CA$13,549 CAD

View

Retailer 5

£7,466 GBP

$10,004 USD

View

Retailer 6

£8,166 GBP

$10,942 USD

View

Retailer 7

£8,236 GBP

$11,035 USD

View

Retailer 8

£8,328 GBP

$11,158 USD

View

Retailer 9

£8,615 GBP

$11,543 USD

View

Retailer 10

£8,687 GBP

$11,639 USD

View

Price last confirmed 26 days ago

Retailer 11

£8,837 GBP

$11,840 USD

View

Final sale: no returns

Retailer 12

£9,156 GBP

$12,268 USD

View

B+

Retailer 13

£10,942 GBP

View

B+

Retailer 14

£12,414 GBP

$16,634 USD

View

B+

Retailer 15

£13,171 GBP

View

B+

Retailer 16

£13,859 GBP

$18,570 USD

View

B+

Retailer 17

£14,439 GBP

View

B+

Retailer 18

£14,628 GBP

€18,666 EUR

View

B+

Retailer 19

£14,911 GBP

$19,979 USD

View

B+

Retailer 20

£17,126 GBP

$22,947 USD

View

B+

Retailer 21

£19,566 GBP

ZAR 423,530 ZAR

View

Retailer 22

£22,918 GBP

$30,707 USD

View

Retailer 23

£23,216 GBP

$31,107 USD

View

Retailer 24

£24,075 GBP

$32,258 USD

View

Price last confirmed 9 days ago

Retailer 25

£27,806 GBP

$37,257 USD

View

Most Expensive

Taylor and Hart

L02ABLN · Oct 31

£27,825 GBP

$37,282 USD

View

25 more retailers have this diamond

Prices start from £6,745 GBPSave up to £21,080 GBP

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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