Radiant|Lab Grown|IGI

1.73ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG750524831

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

Certificate IGI LG750524831

Diamond specifications and retailer prices

From £243 GBP

$326 USD

As of October 30, 2026

Save £2,369 GBP (91%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £2,612 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.73ct lab-grown radiant diamond

This 1.73ct 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 LG750524831 or 750524831. Listed at 27 retailers as of October 30, 2026, with prices from £243 to £2,612, a £2,369 spread on the same certified stone. Brilliant Earth lists it at £2,612. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.2°

Pavilion angle34.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG750524831

Dimensions8.85 × 6.02 × 3.90 mm

L/W Ratio1.47

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 LG750524831

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: £2,612 GBP|Low: £243 GBP|High: £3,030 GBP|Avg: £949 GBP|-13.8%

Brilliant Earth

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October 31, 2026

Retailer 4£243 GBP

Retailer 14£272 GBP

Retailer 23£282 GBP

Retailer 7£302 GBP

Retailer 15£302 GBP

Retailer 21£418 GBP

Retailer 22£420 GBP

Retailer 2£437 GBP

Retailer 6£500 GBP

Retailer 20£572 GBP

Retailer 13£599 GBP

Retailer 3£759 GBP

Retailer 18£772 GBP

Retailer 8£884 GBP

Retailer 5£1,069 GBP

Retailer 11£1,139 GBP

Retailer 10£1,186 GBP

Retailer 17£1,187 GBP

Retailer 16£1,215 GBP

Retailer 12£1,297 GBP

Retailer 19£1,306 GBP

Retailer 9£2,157 GBP

Retailer 24£2,269 GBP

Brilliant Earth£2,612 GBP

37 data points across 24 retailers

27 retailers£243 GBP to £2,612 GBP

Cheapest Retailer

£243 GBP

$326 USD

Retailer 2

£272 GBP

$364 USD

View

Final sale: no returns

Retailer 3

£282 GBP

$378 USD

View

Retailer 4

£302 GBP

$404 USD

View

Retailer 5

£302 GBP

$404 USD

View

Retailer 6

£418 GBP

$560 USD

View

Retailer 7

£420 GBP

HK$4,400 HKD

View

Retailer 8

£437 GBP

$586 USD

View

Retailer 9

£500 GBP

$670 USD

View

Retailer 10

£572 GBP

ZAR 12,372 ZAR

View

Retailer 11

£599 GBP

View

Retailer 12

£759 GBP

$1,017 USD

View

Retailer 13

£772 GBP

A$1,591 AUD

View

B+

Retailer 14

£884 GBP

$1,184 USD

View

B+

Retailer 15

£1,069 GBP

$1,433 USD

View

B+

Retailer 16

£1,139 GBP

$1,526 USD

View

B+

Retailer 17

£1,141 GBP

$1,529 USD

View

B+

Retailer 18

£1,186 GBP

$1,589 USD

View

B+

Retailer 19

£1,187 GBP

$1,590 USD

View

B+

Retailer 20

£1,215 GBP

SGD 2,200 SGD

View

B+

Retailer 21

£1,297 GBP

View

B+

Retailer 22

£1,306 GBP

View

Retailer 23

£2,157 GBP

$2,890 USD

View

Retailer 24

£2,239 GBP

$3,000 USD

View

Retailer 25

£2,269 GBP

$3,040 USD

View

Price last confirmed 12 days ago

Retailer 26

£2,389 GBP

View

Most Expensive

Brilliant Earth

20152035Y · Oct 30

£2,612 GBP

$3,500 USD

View

26 more retailers have this diamond

Prices start from £243 GBPSave up to £2,369 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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