Round|Lab Grown|IGI

5.51ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG758503991

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758503991

Diamond specifications and retailer prices

From £635 GBP

$851 USD

As of October 29, 2026

Save £2,270 GBP (78%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £2,905 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

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 LG758503991 or 758503991. Listed at 14 retailers as of October 29, 2026, with prices from £635 to £2,905, a £2,270 spread on the same certified stone. Taylor and Hart lists it at £2,905. 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 angle34.2°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG758503991

Dimensions11.39 × 11.34 × 6.91 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 LG758503991

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: £1,120 GBP|Low: £610 GBP|High: £2,905 GBP|Avg: £1,457 GBP|+2.0%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Taylor and Hart

October 31, 2026

Retailer 11£635 GBP

Retailer 12£711 GBP

Retailer 3£737 GBP

Retailer 13£737 GBP

Retailer 7£869 GBP

Retailer 8£970 GBP

Retailer 1£1,120 GBP

Retailer 2£1,185 GBP

Retailer 5£1,313 GBP

Retailer 4£1,652 GBP

Retailer 9£1,694 GBP

Retailer 10£2,307 GBP

Retailer 6£2,777 GBP

Taylor and Hart£2,905 GBP

39 data points across 14 retailers

14 retailers£635 GBP to £2,905 GBP

Cheapest Retailer

£635 GBP

$851 USD

Retailer 2

£691 GBP

$926 USD

View

Retailer 3

£711 GBP

$953 USD

View

Final sale: no returns

Retailer 4

£737 GBP

$988 USD

View

Retailer 5

£869 GBP

$1,165 USD

View

Retailer 6

£970 GBP

View

Price last confirmed 15 days ago

Retailer 7

£1,120 GBP

View

B+

Retailer 8

£1,185 GBP

$1,588 USD

View

B+

Retailer 9

£1,652 GBP

$2,213 USD

View

Retailer 10

£1,694 GBP

$2,270 USD

View

Retailer 11

£2,073 GBP

$2,777 USD

View

Retailer 12

£2,307 GBP

$3,091 USD

View

Retailer 13

£2,777 GBP

View

Most Expensive

Taylor and Hart

A06PVF1 · Oct 31

£2,905 GBP

$3,893 USD

View

13 more retailers have this diamond

Prices start from £635 GBPSave up to £2,270 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

£635 GBP