Marquise|Lab Grown|IGI

5.23ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG693529681

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG693529681

Diamond specifications and retailer prices

From £847 GBP

$1,135 USD

As of October 27, 2026

Save £1,627 GBP (66%) vs most expensive(unlock to see where)

9 retailers carry this diamond

Most expensive: £2,474 GBP at Taylor and Hart · As of October 26, 2026

View at Taylor and Hart

About this 5.23ct lab-grown marquise diamond

This 5.23ct 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 LG693529681 or 693529681. Listed at 9 retailers as of October 26, 2026, with prices from £847 to £2,474, a £1,627 spread on the same certified stone. Taylor and Hart lists it at £2,474. 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

5.23

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.7°

Pavilion angle38°

OriginLab Grown

Grading LabIGI

CertificateIGI LG693529681

Dimensions18.04 × 9.32 × 5.32 mm

L/W Ratio1.94

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 LG693529681

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 27

Current: £1,642 GBP|Low: £605 GBP|High: £7,702 GBP|Avg: £2,473 GBP|-11.6%

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

Taylor and Hart

October 26, 2026

Retailer 12£690 GBP

Retailer 8£847 GBP

Retailer 7£1,106 GBP

Retailer 13£1,238 GBP

Retailer 3£1,459 GBP

Retailer 1£1,642 GBP

Retailer 11£1,846 GBP

Retailer 6£2,143 GBP

Retailer 10£2,235 GBP

Retailer 9£2,269 GBP

Retailer 2£2,423 GBP

Taylor and Hart£2,474 GBP

Retailer 14£2,979 GBP

Retailer 5£4,287 GBP

Retailer 4£7,702 GBP

12 data points across 15 retailers

9 retailers£847 GBP to £2,474 GBP

Retailer 1

£616 GBP

$825 USD

Price last confirmed 8 days ago

Retailer 2

£847 GBP

$1,135 USD

View

Retailer 3

£1,106 GBP

View

Retailer 4

£1,238 GBP

$1,659 USD

View

Price last confirmed 8 days ago

B+

Retailer 5

£1,642 GBP

$2,200 USD

View

B+

Retailer 6

£1,846 GBP

$2,474 USD

View

B+

Retailer 7

£2,235 GBP

$2,995 USD

View

B+

Retailer 8

£2,269 GBP

$3,040 USD

View

Most Expensive

Taylor and Hart

8HNSJT3 · Oct 26

£2,474 GBP

$3,315 USD

View

8 more retailers have this diamond

Prices start from £847 GBPSave up to £1,627 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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5.23ct Marquise

£847 GBP