Radiant|Lab Grown|IGI

1.73ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG522253049

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

Certificate IGI LG522253049

Diamond specifications and retailer prices

From £245 GBP

$329 USD

As of November 2, 2026

Save £973 GBP (80%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £1,218 GBP at MOH London · As of November 1, 2026

View at MOH London

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522253049 or 522253049. Listed at 18 retailers as of November 1, 2026, with prices from £245 to £1,218, a £973 spread on the same certified stone. MOH London lists it at £1,218. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.73

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle45.5°

Pavilion angle31.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG522253049

Dimensions7.86 × 6.12 × 4.12 mm

L/W Ratio1.28

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG522253049

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: Nov 2

Current: £1,218 GBP|Low: £235 GBP|High: £1,232 GBP|Avg: £553 GBP|-1.1%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

November 2, 2026

Retailer 12£245 GBP

Retailer 7£274 GBP

Retailer 3£284 GBP

Retailer 4£304 GBP

Retailer 13£304 GBP

Retailer 2£389 GBP

Retailer 10£417 GBP

Retailer 5£467 GBP

Retailer 15£491 GBP

Retailer 6£502 GBP

Retailer 8£544 GBP

Retailer 11£891 GBP

Retailer 14£977 GBP

Retailer 9£1,148 GBP

MOH London£1,218 GBP

41 data points across 15 retailers

18 retailers£245 GBP to £1,218 GBP

Cheapest Retailer

£245 GBP

$329 USD

Retailer 2

£274 GBP

$368 USD

View

Final sale: no returns

Retailer 3

£284 GBP

$381 USD

View

Retailer 4

£304 GBP

$408 USD

View

Retailer 5

£304 GBP

$408 USD

View

Price last confirmed 8 days ago

Retailer 6

£389 GBP

View

Retailer 7

£417 GBP

$560 USD

View

B+

Retailer 8

£467 GBP

$627 USD

View

B+

Retailer 9

£491 GBP

$659 USD

View

B+

Retailer 10

£502 GBP

$673 USD

View

B+

Retailer 11

£544 GBP

View

B+

Retailer 12

£630 GBP

HK$6,600 HKD

View

Retailer 13

£891 GBP

$1,196 USD

View

Retailer 14

£977 GBP

$1,311 USD

View

Retailer 15

£1,010 GBP

$1,355 USD

View

Retailer 16

£1,148 GBP

$1,540 USD

View

Retailer 17

£1,196 GBP

$1,605 USD

View

Most Expensive

MOH London

LG522253049 · Nov 1

£1,218 GBP

View

17 more retailers have this diamond

Prices start from £245 GBPSave up to £973 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.

Similar diamonds

1.73ct Radiant

£245 GBP