Marquise|Lab Grown|IGI

3.48ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG754509111

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754509111

Diamond specifications and retailer prices

From £2,699 GBP

$3,617 USD

As of October 31, 2026

Save £12,090 GBP (82%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £14,790 GBP at Michael Trio · As of October 31, 2026

View at Michael Trio

About this 3.48ct lab-grown marquise diamond

This 3.48ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754509111 or 754509111. Listed at 14 retailers as of October 31, 2026, with prices from £2,699 to £14,790, a £12,090 spread on the same certified stone. Michael Trio lists it at £14,790. 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

3.48

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle40.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG754509111

Dimensions15.36 × 7.90 × 5.03 mm

L/W Ratio1.94

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG754509111

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 31

Current: £14,790 GBP|Low: £2,699 GBP|High: £16,330 GBP|Avg: £7,855 GBP|-9.4%

Michael Trio

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

November 1, 2026

Retailer 11£2,699 GBP

Retailer 13£3,429 GBP

Retailer 4£5,111 GBP

Retailer 7£5,227 GBP

Retailer 12£5,736 GBP

Retailer 3£6,206 GBP

Retailer 10£6,622 GBP

Retailer 5£6,832 GBP

Retailer 8£7,224 GBP

Retailer 2£8,327 GBP

Retailer 9£9,337 GBP

Retailer 14£10,856 GBP

Retailer 6£14,386 GBP

Michael Trio£14,790 GBP

41 data points across 14 retailers

14 retailers£2,699 GBP to £14,790 GBP

Cheapest Retailer

£2,699 GBP

$3,617 USD

Retailer 2

£3,429 GBP

$4,594 USD

View

B+

Retailer 3

£5,111 GBP

HK$53,500 HKD

View

B+

Retailer 4

£5,227 GBP

View

B+

Retailer 5

£5,736 GBP

$7,685 USD

View

B+

Retailer 6

£6,206 GBP

$8,315 USD

View

B+

Retailer 7

£6,622 GBP

€8,450 EUR

View

B+

Retailer 8

£6,832 GBP

$9,154 USD

View

B+

Retailer 9

£7,224 GBP

$9,680 USD

View

B+

Retailer 10

£8,327 GBP

View

Retailer 11

£9,337 GBP

ZAR 202,111 ZAR

View

Retailer 12

£10,856 GBP

$14,546 USD

View

Price last confirmed 8 days ago

Retailer 13

£14,386 GBP

$19,276 USD

View

Most Expensive

Michael Trio

1379234710 · Oct 31

£14,790 GBP

SGD 26,779 SGD

View

13 more retailers have this diamond

Prices start from £2,699 GBPSave up to £12,090 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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