Princess|Lab Grown|IGI

5.51ct E VS1 Princess Lab Grown Diamond

EX • E/VS1 • IGI LG726541388

Shape and cutting style on the report: Princess cut

Certificate IGI LG726541388

Diamond specifications and retailer prices

From £571 GBP

$760 USD

As of October 30, 2026

Save £1,914 GBP (77%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £9,477 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 5.51ct lab-grown princess diamond

This 5.51ct lab-grown princess 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 LG726541388 or 726541388. Listed at 19 retailers as of October 26, 2026, with a 335% 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 angle39.3°

Pavilion angle39.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG726541388

Dimensions9.61 × 9.47 × 6.92 mm

L/W Ratio1.01

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 LG726541388

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 30

Current: £9,477 GBP|Low: £547 GBP|High: £9,477 GBP|Avg: £1,709 GBP

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

Retailer 17

October 30, 2026

Retailer 17£571 GBP

Retailer 8£638 GBP

Retailer 3£662 GBP

Retailer 15£796 GBP

Retailer 16£948 GBP

Retailer 2£1,014 GBP

Retailer 6£1,016 GBP

Retailer 10£1,164 GBP

Retailer 13£1,340 GBP

Retailer 11£1,345 GBP

Retailer 14£1,574 GBP

Retailer 5£1,861 GBP

Retailer 9£2,060 GBP

Retailer 7£2,227 GBP

Retailer 4£2,238 GBP

Retailer 12£2,484 GBP

Brilliant Earth£9,477 GBP

44 data points across 17 retailers

19 retailers£571 GBP to £2,484 GBP

Cheapest Retailer

£571 GBP

$760 USD

Retailer 2

£638 GBP

$850 USD

View

Final sale: no returns

Retailer 3

£662 GBP

$881 USD

View

Retailer 4

£796 GBP

$1,060 USD

View

B+

Retailer 5

£948 GBP

$1,262 USD

View

Retailer 6

£1,014 GBP

View

Retailer 7

£1,016 GBP

$1,353 USD

View

Retailer 8

£1,164 GBP

€1,476 EUR

View

Retailer 9

£1,340 GBP

A$2,746 AUD

View

Price last confirmed 8 days ago

Retailer 10

£1,345 GBP

ZAR 28,930 ZAR

View

Retailer 11

£1,574 GBP

$2,096 USD

View

B+

Retailer 12

£1,861 GBP

$2,478 USD

View

B+

Retailer 13

£1,903 GBP

$2,534 USD

View

B+

Retailer 14

£2,060 GBP

View

B+

Retailer 15

£2,227 GBP

SGD 4,008 SGD

View

B+

Retailer 16

£2,238 GBP

$2,980 USD

View

B+

Retailer 17

£2,285 GBP

$3,042 USD

View

B+

Retailer 18

£2,484 GBP

View

Most Expensive

Brilliant Earth

21214235A · Oct 29

£9,477 GBP

$12,620 USD

View

Price under review

18 more retailers have this diamond

Prices start from £571 GBPSave up to £1,914 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 Princess

£571 GBP