Marquise|Lab Grown|IGI

5.51ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG695505923

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG695505923

Diamond specifications and retailer prices

From £902 GBP

As of October 26, 2026

Save £1,995 GBP (69%) vs most expensive(unlock to see where)

11 retailers carry this diamond

Most expensive: £2,897 GBP at Taylor and Hart · As of October 26, 2026

View at Taylor and Hart

About this 5.51ct lab-grown marquise diamond

This 5.51ct lab-grown marquise 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 LG695505923 or 695505923. Listed at 11 retailers as of October 26, 2026, with prices from £902 to £2,897, a £1,995 spread on the same certified stone. Taylor and Hart lists it at £2,897. 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

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle38.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG695505923

Dimensions18.83 × 9.14 × 5.47 mm

L/W Ratio2.06

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 LG695505923

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26

Current: £1,793 GBP|Low: £674 GBP|High: £10,225 GBP|Avg: £2,482 GBP|-4.6%

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

Retailer 14

Retailer 15

Taylor and Hart

October 26, 2026

Retailer 7£674 GBP

Retailer 13£802 GBP

Retailer 9£902 GBP

Retailer 10£963 GBP

Retailer 8£1,293 GBP

Retailer 3£1,387 GBP

Retailer 2£1,434 GBP

Retailer 1£1,793 GBP

Retailer 12£1,942 GBP

Retailer 6£2,277 GBP

Retailer 15£2,298 GBP

Retailer 11£2,578 GBP

Retailer 14£2,580 GBP

Taylor and Hart£2,897 GBP

Retailer 5£4,316 GBP

Retailer 4£10,225 GBP

4 data points across 16 retailers

11 retailers£902 GBP to £2,897 GBP

Retailer 1

£717 GBP

$961 USD

Price last confirmed 8 days ago

Retailer 2

£902 GBP

View

Retailer 3

£963 GBP

$1,290 USD

View

Price last confirmed 5 days ago

Retailer 4

£1,293 GBP

View

Retailer 5

£1,434 GBP

$1,922 USD

View

Price last confirmed 9 days ago

B+

Retailer 6

£1,793 GBP

$2,403 USD

View

B+

Retailer 7

£1,942 GBP

$2,602 USD

View

B+

Retailer 8

£2,298 GBP

View

B+

Retailer 9

£2,578 GBP

$3,454 USD

View

B+

Retailer 10

£2,580 GBP

$3,457 USD

View

Most Expensive

Taylor and Hart

6FQ9P7V · Oct 26

£2,897 GBP

$3,882 USD

View

10 more retailers have this diamond

Prices start from £902 GBPSave up to £1,995 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 Marquise

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