Princess|Lab Grown|IGI

1.73ct E IF Princess Lab Grown Diamond

ID • E/IF • IGI LG731589724

Shape and cutting style on the report: Princess cut

Certificate IGI LG731589724

Diamond specifications and retailer prices

From £463 GBP

$616 USD

As of October 27, 2026

Save £2,962 GBP (86%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £3,424 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.73ct lab-grown princess diamond

This 1.73ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731589724 or 731589724. Listed at 27 retailers as of October 27, 2026, with prices from £463 to £3,424, a £2,962 spread on the same certified stone. Brilliant Earth lists it at £3,424. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle41.9°

Pavilion angle38.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG731589724

Dimensions6.76 × 6.53 × 4.60 mm

L/W Ratio1.04

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 LG731589724

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 27

Current: £3,424 GBP|Low: £463 GBP|High: £3,424 GBP|Avg: £1,421 GBP

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

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Retailer 15

October 29, 2026

Retailer 3£463 GBP

Retailer 6£517 GBP

Retailer 10£668 GBP

Retailer 15£852 GBP

Retailer 2£895 GBP

Retailer 9£985 GBP

Retailer 8£1,044 GBP

Retailer 11£1,334 GBP

Retailer 12£1,422 GBP

Retailer 7£1,671 GBP

Retailer 4£1,890 GBP

Retailer 5£1,926 GBP

Retailer 13£2,395 GBP

Retailer 14£2,502 GBP

Brilliant Earth£3,424 GBP

42 data points across 15 retailers

27 retailers£463 GBP to £3,424 GBP

Cheapest Retailer

£463 GBP

$616 USD

Retailer 2

£463 GBP

$616 USD

View

Price last confirmed 37 days ago

Retailer 3

£517 GBP

$689 USD

View

Final sale: no returns

Retailer 4

£517 GBP

$689 USD

View

Retailer 5

£565 GBP

$753 USD

View

Price last confirmed 38 days ago

Retailer 6

£573 GBP

$763 USD

View

Retailer 7

£573 GBP

$763 USD

View

Price last confirmed 13 days ago

Retailer 8

£668 GBP

$890 USD

View

Retailer 9

£842 GBP

$1,121 USD

View

Retailer 10

£852 GBP

$1,135 USD

View

Retailer 11

£895 GBP

View

Retailer 12

£985 GBP

ZAR 21,192 ZAR

View

Retailer 13

£1,044 GBP

€1,324 EUR

View

Retailer 14

£1,334 GBP

A$2,733 AUD

View

Price last confirmed 8 days ago

Retailer 15

£1,334 GBP

$1,777 USD

View

Retailer 16

£1,422 GBP

$1,894 USD

View

Price last confirmed 10 days ago

B+

Retailer 17

£1,507 GBP

$2,007 USD

View

B+

Retailer 18

£1,671 GBP

View

B+

Retailer 19

£1,829 GBP

$2,436 USD

View

B+

Retailer 20

£1,852 GBP

$2,466 USD

View

Retailer 21

£1,890 GBP

A$3,872 AUD

View

Price last confirmed 21 days ago

B+

Retailer 22

£1,892 GBP

$2,520 USD

View

B+

Retailer 23

£1,926 GBP

$2,565 USD

View

B+

Retailer 24

£2,119 GBP

$2,822 USD

View

Retailer 25

£2,395 GBP

$3,190 USD

View

Price last confirmed 11 days ago

B+

Retailer 26

£2,502 GBP

View

Most Expensive

Brilliant Earth

18154540A · Oct 29

£3,424 GBP

$4,560 USD

View

26 more retailers have this diamond

Prices start from £463 GBPSave up to £2,962 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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