Round|Lab Grown|IGI

1.39ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818672355

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818672355

Diamond specifications and retailer prices

From £1,269 GBP

$1,700 USD

As of October 25, 2026

Save £276 GBP (18%) vs most expensive(unlock to see where)

10 retailers carry this diamond

Most expensive: £1,545 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818672355 or 818672355. Listed at 10 retailers as of October 25, 2026, with prices from £1,269 to £1,545, a £276 spread on the same certified stone. Brilliant Earth lists it at £1,545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG818672355

Dimensions7.11 × 7.13 × 4.42 mm

L/W Ratio1.00

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG818672355

Side View

Caratlytics Score

How it works →

Good

Decent quality, room for better deals

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

Price History

Last verified: Oct 25

Current: £1,545 GBP|Low: £288 GBP|High: £1,993 GBP|Avg: £865 GBP

Brilliant Earth

Retailer 2

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Retailer 5

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Retailer 7

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Retailer 10

Retailer 11

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Retailer 15

October 24, 2026

Retailer 4£288 GBP

Retailer 9£421 GBP

Retailer 12£455 GBP

Retailer 13£474 GBP

Retailer 15£652 GBP

Retailer 5£673 GBP

Retailer 3£687 GBP

Retailer 7£756 GBP

Retailer 8£780 GBP

Retailer 14£816 GBP

Retailer 11£1,130 GBP

Retailer 2£1,269 GBP

Retailer 6£1,356 GBP

Brilliant Earth£1,545 GBP

Retailer 10£1,821 GBP

14 data points across 15 retailers

10 retailers£1,269 GBP to £1,545 GBP

Retailer 1

£421 GBP

$564 USD

Price last confirmed 10 days ago

Retailer 2

£455 GBP

View

Price last confirmed 14 days ago

Retailer 3

£474 GBP

$635 USD

View

Price last confirmed 9 days ago

Retailer 4

£687 GBP

ZAR 14,866 ZAR

View

Price last confirmed 49 days ago

Retailer 5

£695 GBP

$931 USD

View

Price last confirmed 21 days ago

Retailer 6

£780 GBP

$1,045 USD

View

Price last confirmed 9 days ago

Retailer 7

£816 GBP

$1,093 USD

View

Price last confirmed 10 days ago

Retailer 8

£1,130 GBP

View

Price last confirmed 12 days ago

Retailer 9

£1,269 GBP

$1,700 USD

View

Most Expensive

Brilliant Earth

21733100B · Oct 29

£1,545 GBP

$2,070 USD

View

9 more retailers have this diamond

Prices start from £1,269 GBPSave up to £276 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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1.39ct Round

£1,269 GBP