Round|Lab Grown|IGI

5.51ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG720514905

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720514905

Diamond specifications and retailer prices

From £544 GBP

$729 USD

As of October 29, 2026

Save £3,568 GBP (87%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £4,112 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720514905 or 720514905. Listed at 25 retailers as of October 29, 2026, with prices from £544 to £4,112, a £3,568 spread on the same certified stone. Brilliant Earth lists it at £4,112. 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

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.3°

Pavilion angle41.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG720514905

Dimensions11.37 × 11.42 × 6.89 mm

L/W Ratio1.00

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG720514905

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: £4,112 GBP|Low: £544 GBP|High: £4,329 GBP|Avg: £1,624 GBP|-5.0%

Brilliant Earth

Retailer 2

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November 1, 2026

Retailer 11£544 GBP

Retailer 7£592 GBP

Retailer 4£631 GBP

Retailer 12£631 GBP

Retailer 21£745 GBP

Retailer 17£761 GBP

Retailer 15£828 GBP

Retailer 5£939 GBP

Retailer 2£1,001 GBP

Retailer 13£1,009 GBP

Retailer 6£1,023 GBP

Retailer 20£1,386 GBP

Retailer 18£1,391 GBP

Retailer 8£1,620 GBP

Retailer 3£1,774 GBP

Retailer 9£2,133 GBP

Retailer 10£2,175 GBP

Retailer 16£2,491 GBP

Retailer 14£2,812 GBP

Retailer 19£3,205 GBP

Brilliant Earth£4,112 GBP

30 data points across 21 retailers

25 retailers£544 GBP to £4,112 GBP

Cheapest Retailer

£544 GBP

$729 USD

Retailer 2

£592 GBP

$793 USD

View

Retailer 3

£631 GBP

$846 USD

View

Price last confirmed 14 days ago

Retailer 4

£631 GBP

$846 USD

View

Retailer 5

£644 GBP

$863 USD

View

Final sale: no returns

Retailer 6

£745 GBP

HK$7,800 HKD

View

Retailer 7

£761 GBP

$1,020 USD

View

Retailer 8

£828 GBP

View

Retailer 9

£939 GBP

$1,258 USD

View

Retailer 10

£1,001 GBP

View

Retailer 11

£1,009 GBP

€1,288 EUR

View

B+

Retailer 12

£1,023 GBP

$1,371 USD

View

B+

Retailer 13

£1,386 GBP

$1,857 USD

View

B+

Retailer 14

£1,391 GBP

A$2,868 AUD

View

B+

Retailer 15

£1,620 GBP

$2,171 USD

View

B+

Retailer 16

£1,774 GBP

$2,377 USD

View

B+

Retailer 17

£2,089 GBP

$2,799 USD

View

B+

Retailer 18

£2,133 GBP

$2,858 USD

View

Retailer 19

£2,175 GBP

$2,915 USD

View

Price last confirmed 13 days ago

Retailer 20

£2,491 GBP

View

Retailer 21

£2,812 GBP

A$5,797 AUD

View

Price last confirmed 24 days ago

Retailer 22

£3,183 GBP

$4,265 USD

View

Price last confirmed 10 days ago

Retailer 23

£3,191 GBP

$4,275 USD

View

Price last confirmed 10 days ago

Retailer 24

£3,205 GBP

$4,295 USD

View

Price last confirmed 10 days ago

Most Expensive

Brilliant Earth

18300038A · Oct 31

£4,112 GBP

$5,510 USD

View

24 more retailers have this diamond

Prices start from £544 GBPSave up to £3,568 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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5.51ct Round

£544 GBP