Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593868

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743593868

Diamond specifications and retailer prices

From £225 GBP

$301 USD

As of October 30, 2026

Save £1,970 GBP (90%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: £2,194 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743593868 or 743593868. Listed at 31 retailers as of October 30, 2026, with prices from £225 to £2,194, a £1,970 spread on the same certified stone. Brilliant Earth lists it at £2,194. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.5°

Pavilion angle34.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG743593868

Dimensions5.71 × 5.71 × 3.79 mm

L/W Ratio1.00

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 LG743593868

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 30

Current: £2,194 GBP|Low: £225 GBP|High: £2,530 GBP|Avg: £825 GBP|-13.3%

Brilliant Earth

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October 31, 2026

Retailer 8£225 GBP

Retailer 11£269 GBP

Retailer 17£277 GBP

Retailer 18£293 GBP

Retailer 25£327 GBP

Retailer 3£396 GBP

Retailer 23£411 GBP

Retailer 9£433 GBP

Retailer 12£474 GBP

Retailer 2£499 GBP

Retailer 21£528 GBP

Retailer 13£550 GBP

Retailer 10£632 GBP

Retailer 14£696 GBP

Retailer 20£717 GBP

Retailer 4£855 GBP

Retailer 5£1,070 GBP

Retailer 15£1,108 GBP

Retailer 7£1,128 GBP

Retailer 16£1,180 GBP

Retailer 22£1,233 GBP

Retailer 19£1,265 GBP

Retailer 24£1,836 GBP

Retailer 6£1,993 GBP

Brilliant Earth£2,194 GBP

37 data points across 25 retailers

31 retailers£225 GBP to £2,194 GBP

Cheapest Retailer

£225 GBP

$301 USD

Retailer 2

£225 GBP

$301 USD

View

Price last confirmed 23 days ago

Retailer 3

£239 GBP

$320 USD

View

Price last confirmed 31 days ago

Retailer 4

£269 GBP

$360 USD

View

Final sale: no returns

Retailer 5

£277 GBP

$371 USD

View

Price last confirmed 34 days ago

Retailer 6

£278 GBP

$373 USD

View

Price last confirmed 28 days ago

Retailer 7

£293 GBP

$392 USD

View

Price last confirmed 33 days ago

Retailer 8

£327 GBP

View

Price last confirmed 14 days ago

Retailer 9

£396 GBP

$530 USD

View

Retailer 10

£411 GBP

HK$4,300 HKD

View

Retailer 11

£433 GBP

$580 USD

View

Retailer 12

£474 GBP

$635 USD

View

Retailer 13

£499 GBP

€637 EUR

View

Retailer 14

£528 GBP

ZAR 11,431 ZAR

View

Retailer 15

£550 GBP

View

Retailer 16

£632 GBP

$847 USD

View

Retailer 17

£696 GBP

$933 USD

View

Retailer 18

£717 GBP

A$1,477 AUD

View

B+

Retailer 19

£855 GBP

$1,146 USD

View

Retailer 20

£988 GBP

$1,324 USD

View

Price last confirmed 21 days ago

B+

Retailer 21

£988 GBP

$1,324 USD

View

Retailer 22

£1,051 GBP

$1,408 USD

View

Price last confirmed 31 days ago

B+

Retailer 23

£1,070 GBP

$1,434 USD

View

B+

Retailer 24

£1,108 GBP

$1,484 USD

View

B+

Retailer 25

£1,128 GBP

$1,511 USD

View

B+

Retailer 26

£1,180 GBP

SGD 2,137 SGD

View

B+

Retailer 27

£1,233 GBP

View

B+

Retailer 28

£1,265 GBP

A$2,607 AUD

View

Retailer 29

£1,836 GBP

$2,460 USD

View

Retailer 30

£1,993 GBP

$2,670 USD

View

Most Expensive

Brilliant Earth

17456789Y · Oct 30

£2,194 GBP

$2,940 USD

View

30 more retailers have this diamond

Prices start from £225 GBPSave up to £1,970 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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