Marquise|Lab Grown|IGI

4.01ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG812625069

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812625069

Diamond specifications and retailer prices

From £6,506 GBP

$8,717 USD

As of October 31, 2026

Save £21,754 GBP (77%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £28,260 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.01ct lab-grown marquise diamond

This 4.01ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812625069 or 812625069. Listed at 23 retailers as of October 31, 2026, with prices from £6,506 to £28,260, a £21,754 spread on the same certified stone. Taylor and Hart lists it at £28,260. 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

4.01

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle40.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG812625069

Dimensions16.85 × 8.05 × 5.04 mm

L/W Ratio2.09

Girdle conditionFaceted

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 LG812625069

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 31

Current: £14,808 GBP|Low: £6,015 GBP|High: £43,839 GBP|Avg: £14,061 GBP|+0.9%

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Taylor and Hart

November 1, 2026

Retailer 22£6,469 GBP

Retailer 5£6,506 GBP

Retailer 15£6,804 GBP

Retailer 23£6,813 GBP

Retailer 29£7,025 GBP

Retailer 17£7,371 GBP

Retailer 24£7,421 GBP

Retailer 14£8,221 GBP

Retailer 18£8,221 GBP

Retailer 7£8,441 GBP

Retailer 12£8,684 GBP

Retailer 28£8,922 GBP

Retailer 10£9,077 GBP

Retailer 16£9,246 GBP

Retailer 26£11,192 GBP

Retailer 13£13,016 GBP

Retailer 20£13,024 GBP

Retailer 6£13,512 GBP

Retailer 27£14,234 GBP

Retailer 1£14,808 GBP

Retailer 8£15,315 GBP

Retailer 9£15,710 GBP

Retailer 2£16,524 GBP

Retailer 25£20,066 GBP

Retailer 19£21,504 GBP

Retailer 4£23,503 GBP

Retailer 11£23,841 GBP

Taylor and Hart£28,260 GBP

Retailer 21£41,496 GBP

Retailer 3£43,839 GBP

23 data points across 30 retailers

23 retailers£6,506 GBP to £28,260 GBP

Cheapest Retailer

£6,506 GBP

$8,717 USD

Retailer 2

£6,804 GBP

$9,116 USD

View

Price last confirmed 30 days ago

Retailer 3

£6,813 GBP

$9,128 USD

View

Retailer 4

£7,025 GBP

$9,413 USD

View

Retailer 5

£7,421 GBP

CA$13,811 CAD

View

Retailer 6

£8,030 GBP

$10,759 USD

View

Retailer 7

£8,221 GBP

$11,015 USD

View

Price last confirmed 29 days ago

Retailer 8

£8,441 GBP

$11,310 USD

View

Retailer 9

£8,684 GBP

$11,636 USD

View

B+

Retailer 10

£9,077 GBP

$12,162 USD

View

Final sale: no returns

Retailer 11

£9,246 GBP

$12,388 USD

View

Price last confirmed 32 days ago

B+

Retailer 12

£11,192 GBP

View

B+

Retailer 13

£13,512 GBP

View

B+

Retailer 14

£14,234 GBP

$19,072 USD

View

B+

Retailer 15

£14,808 GBP

View

Retailer 16

£15,315 GBP

$20,521 USD

View

Retailer 17

£15,710 GBP

$21,050 USD

View

Retailer 18

£16,524 GBP

$22,140 USD

View

Retailer 19

£20,066 GBP

ZAR 434,345 ZAR

View

Retailer 20

£23,503 GBP

$31,491 USD

View

Retailer 21

£23,841 GBP

$31,944 USD

View

Most Expensive

Taylor and Hart

1LN4HEB · Oct 31

£28,260 GBP

$37,865 USD

View

21 more retailers have this diamond

Prices start from £6,506 GBPSave up to £21,754 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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