Round|Lab Grown|IGI

3.54ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG803629802

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803629802

Diamond specifications and retailer prices

From £1,423 GBP

$1,906 USD

As of October 29, 2026

Save £4,357 GBP (75%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £5,780 GBP at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 3.54ct lab-grown round diamond

This 3.54ct lab-grown round 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 LG803629802 or 803629802. Listed at 21 retailers as of October 29, 2026, with prices from £1,423 to £5,780, a £4,357 spread on the same certified stone. Taylor and Hart lists it at £5,780. 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

3.54

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.9°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG803629802

Dimensions9.67 × 9.75 × 6.09 mm

L/W Ratio1.01

Girdle conditionFaceted

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 LG803629802

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 29

Current: £2,793 GBP|Low: £1,366 GBP|High: £4,770 GBP|Avg: £2,702 GBP|+1.7%

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

October 31, 2026

Retailer 11£1,423 GBP

Retailer 10£1,548 GBP

Retailer 13£1,650 GBP

Retailer 3£1,776 GBP

Retailer 7£2,019 GBP

Retailer 6£2,261 GBP

Retailer 4£2,358 GBP

Retailer 2£2,710 GBP

Retailer 1£2,793 GBP

Retailer 12£3,094 GBP

Retailer 8£3,832 GBP

Retailer 5£4,255 GBP

Retailer 9£4,738 GBP

34 data points across 13 retailers

21 retailers£1,423 GBP to £5,780 GBP

Cheapest Retailer

£1,423 GBP

$1,906 USD

Retailer 2

£1,548 GBP

$2,074 USD

View

Retailer 3

£1,593 GBP

$2,135 USD

View

Final sale: no returns

Retailer 4

£1,650 GBP

$2,211 USD

View

Price last confirmed 20 days ago

Retailer 5

£1,650 GBP

$2,211 USD

View

Retailer 6

£1,771 GBP

$2,373 USD

View

Retailer 7

£1,776 GBP

$2,380 USD

View

Retailer 8

£2,019 GBP

View

Retailer 9

£2,261 GBP

View

Retailer 10

£2,358 GBP

$3,160 USD

View

Retailer 11

£2,430 GBP

$3,256 USD

View

B+

Retailer 12

£2,710 GBP

$3,631 USD

View

B+

Retailer 13

£2,793 GBP

€3,564 EUR

View

B+

Retailer 14

£3,094 GBP

$4,145 USD

View

B+

Retailer 15

£3,832 GBP

ZAR 82,954 ZAR

View

B+

Retailer 16

£4,255 GBP

$5,701 USD

View

Retailer 17

£4,447 GBP

$5,958 USD

View

B+

Retailer 18

£4,738 GBP

View

Retailer 19

£4,954 GBP

$6,638 USD

View

Retailer 20

£5,508 GBP

SGD 9,974 SGD

View

Most Expensive

Taylor and Hart

T2FRBH3 · Oct 30

£5,780 GBP

$7,744 USD

View

20 more retailers have this diamond

Prices start from £1,423 GBPSave up to £4,357 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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3.54ct Round

£1,423 GBP