Radiant|Lab Grown|IGI

1.59ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665410217

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

Certificate IGI LG665410217

Diamond specifications and retailer prices

From £225 GBP

$300 USD

As of October 27, 2026

Save £2,020 GBP (90%) vs most expensive(unlock to see where)

32 retailers carry this diamond

Most expensive: £2,245 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant 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 LG665410217 or 665410217. Listed at 32 retailers as of October 27, 2026, with prices from £225 to £2,245, a £2,020 spread on the same certified stone. Brilliant Earth lists it at £2,245. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.9°

Pavilion angle32.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG665410217

Dimensions8.50 × 5.71 × 3.74 mm

L/W Ratio1.49

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG665410217

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: £2,245 GBP|Low: £225 GBP|High: £2,245 GBP|Avg: £810 GBP

Brilliant Earth

Retailer 2

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October 29, 2026

Retailer 3£225 GBP

Retailer 16£268 GBP

Retailer 10£327 GBP

Retailer 4£396 GBP

Retailer 18£398 GBP

Retailer 21£458 GBP

Retailer 8£477 GBP

Retailer 17£481 GBP

Retailer 2£495 GBP

Retailer 9£630 GBP

Retailer 13£652 GBP

Retailer 5£837 GBP

Retailer 22£860 GBP

Retailer 15£931 GBP

Retailer 12£935 GBP

Retailer 14£943 GBP

Retailer 7£1,076 GBP

Retailer 19£1,122 GBP

Retailer 6£1,137 GBP

Retailer 11£1,144 GBP

Retailer 20£1,705 GBP

Brilliant Earth£2,245 GBP

36 data points across 22 retailers

32 retailers£225 GBP to £2,245 GBP

Cheapest Retailer

£225 GBP

$300 USD

Retailer 2

£225 GBP

$300 USD

View

Price last confirmed 21 days ago

Retailer 3

£235 GBP

$313 USD

View

Price last confirmed 29 days ago

Retailer 4

£268 GBP

$357 USD

View

Final sale: no returns

Retailer 5

£273 GBP

$363 USD

View

Price last confirmed 32 days ago

Retailer 6

£280 GBP

$373 USD

View

Price last confirmed 26 days ago

Retailer 7

£288 GBP

$383 USD

View

Price last confirmed 31 days ago

Retailer 8

£327 GBP

HK$3,400 HKD

View

Retailer 9

£396 GBP

$528 USD

View

Retailer 10

£398 GBP

$530 USD

View

Retailer 11

£458 GBP

€581 EUR

View

Retailer 12

£477 GBP

$635 USD

View

Retailer 13

£481 GBP

ZAR 10,343 ZAR

View

Retailer 14

£491 GBP

View

Price last confirmed 14 days ago

Retailer 15

£495 GBP

View

Retailer 16

£630 GBP

$840 USD

View

Retailer 17

£652 GBP

A$1,336 AUD

View

Retailer 18

£837 GBP

$1,114 USD

View

B+

Retailer 19

£860 GBP

$1,145 USD

View

B+

Retailer 20

£900 GBP

$1,198 USD

View

Price last confirmed 19 days ago

B+

Retailer 21

£900 GBP

$1,198 USD

View

B+

Retailer 22

£931 GBP

$1,240 USD

View

B+

Retailer 23

£935 GBP

$1,245 USD

View

B+

Retailer 24

£937 GBP

$1,248 USD

View

Price last confirmed 29 days ago

B+

Retailer 25

£943 GBP

SGD 1,697 SGD

View

B+

Retailer 26

£1,076 GBP

$1,433 USD

View

B+

Retailer 27

£1,122 GBP

View

B+

Retailer 28

£1,137 GBP

$1,514 USD

View

B+

Retailer 29

£1,144 GBP

A$2,343 AUD

View

Price last confirmed 24 days ago

B+

Retailer 30

£1,705 GBP

$2,270 USD

View

Price last confirmed 11 days ago

Retailer 31

£2,124 GBP

View

Most Expensive

Brilliant Earth

12598535A · Oct 29

£2,245 GBP

$2,990 USD

View

31 more retailers have this diamond

Prices start from £225 GBPSave up to £2,020 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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