Round|Lab Grown|IGI

4.73ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG811623209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811623209

Diamond specifications and retailer prices

From £3,536 GBP

$4,738 USD

As of October 29, 2026

Save £12,292 GBP (78%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £15,828 GBP at With Clarity · As of October 31, 2026

View at With Clarity

About this 4.73ct lab-grown round diamond

This 4.73ct lab-grown round 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 LG811623209 or 811623209. Listed at 22 retailers as of October 29, 2026, with prices from £3,536 to £15,828, a £12,292 spread on the same certified stone. With Clarity lists it at £15,828. 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

4.73

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG811623209

Dimensions10.76 × 10.69 × 6.61 mm

L/W Ratio1.01

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG811623209

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: £5,313 GBP|Low: £3,536 GBP|High: £16,745 GBP|Avg: £7,346 GBP|+0.8%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 15

Retailer 16

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Retailer 18

Retailer 19

Retailer 20

With Clarity

November 1, 2026

Retailer 5£3,536 GBP

Retailer 2£3,706 GBP

Retailer 7£3,863 GBP

Retailer 17£3,960 GBP

Retailer 9£4,102 GBP

Retailer 14£4,105 GBP

Retailer 11£4,174 GBP

Retailer 4£4,782 GBP

Retailer 8£5,125 GBP

Retailer 1£5,313 GBP

Retailer 6£5,645 GBP

Retailer 19£6,265 GBP

Retailer 3£6,342 GBP

Retailer 12£6,837 GBP

Retailer 10£7,457 GBP

Retailer 18£8,538 GBP

Retailer 16£8,730 GBP

Retailer 15£12,277 GBP

Retailer 13£14,451 GBP

Retailer 20£14,687 GBP

With Clarity£15,828 GBP

25 data points across 21 retailers

22 retailers£3,536 GBP to £15,828 GBP

Cheapest Retailer

£3,536 GBP

$4,738 USD

Retailer 2

£3,706 GBP

$4,965 USD

View

Retailer 3

£3,863 GBP

$5,176 USD

View

Retailer 4

£3,960 GBP

$5,306 USD

View

Final sale: no returns

Retailer 5

£4,102 GBP

$5,496 USD

View

Retailer 6

£4,105 GBP

$5,500 USD

View

Retailer 7

£4,174 GBP

$5,593 USD

View

Price last confirmed 15 days ago

Retailer 8

£4,782 GBP

$6,408 USD

View

Retailer 9

£5,125 GBP

$6,867 USD

View

Retailer 10

£5,313 GBP

View

B+

Retailer 11

£5,645 GBP

$7,564 USD

View

B+

Retailer 12

£6,265 GBP

$8,395 USD

View

B+

Retailer 13

£6,342 GBP

$8,497 USD

View

B+

Retailer 14

£6,837 GBP

€8,724 EUR

View

B+

Retailer 15

£7,457 GBP

$9,991 USD

View

B+

Retailer 16

£7,868 GBP

$10,542 USD

View

B+

Retailer 17

£8,538 GBP

View

B+

Retailer 18

£8,730 GBP

ZAR 188,960 ZAR

View

Retailer 19

£12,277 GBP

$16,450 USD

View

Retailer 20

£14,451 GBP

SGD 26,165 SGD

View

Retailer 21

£14,687 GBP

$19,679 USD

View

Most Expensive

With Clarity

811623209 · Oct 31

£15,828 GBP

$21,208 USD

View

21 more retailers have this diamond

Prices start from £3,536 GBPSave up to £12,292 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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4.73ct Round

£3,536 GBP