Princess|Lab Grown|IGI

1.64ct E IF Princess Lab Grown Diamond

ID • E/IF • IGI LG678568055

Shape and cutting style on the report: Princess cut

Certificate IGI LG678568055

Diamond specifications and retailer prices

From £542 GBP

$722 USD

As of October 28, 2026

Save £2,304 GBP (81%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £2,846 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.64ct lab-grown princess diamond

This 1.64ct 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 LG678568055 or 678568055. Listed at 27 retailers as of October 28, 2026, with prices from £542 to £2,846, a £2,304 spread on the same certified stone. Brilliant Earth lists it at £2,846. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.4°

Pavilion angle41.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG678568055

Dimensions6.23 × 6.20 × 4.85 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG678568055

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 28

Current: £2,846 GBP|Low: £542 GBP|High: £2,846 GBP|Avg: £1,355 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

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

October 29, 2026

Retailer 12£542 GBP

Retailer 9£562 GBP

Retailer 16£654 GBP

Retailer 19£695 GBP

Retailer 10£749 GBP

Retailer 5£805 GBP

Retailer 2£896 GBP

Retailer 13£915 GBP

Retailer 4£972 GBP

Retailer 14£1,033 GBP

Retailer 17£1,229 GBP

Retailer 18£1,399 GBP

Retailer 11£1,751 GBP

Retailer 20£1,804 GBP

Retailer 3£1,814 GBP

Retailer 7£1,895 GBP

Retailer 8£1,940 GBP

Retailer 6£1,964 GBP

Retailer 15£2,372 GBP

Brilliant Earth£2,846 GBP

40 data points across 20 retailers

27 retailers£542 GBP to £2,846 GBP

Retailer 1

£485 GBP

$646 USD

Price last confirmed 29 days ago

Retailer 2

£542 GBP

$722 USD

View

Final sale: no returns

Retailer 3

£546 GBP

$727 USD

View

Price last confirmed 36 days ago

Retailer 4

£555 GBP

$739 USD

View

Price last confirmed 30 days ago

Retailer 5

£562 GBP

$749 USD

View

Price last confirmed 13 days ago

Retailer 6

£654 GBP

HK$6,800 HKD

View

Retailer 7

£695 GBP

$925 USD

View

Retailer 8

£749 GBP

$998 USD

View

Retailer 9

£805 GBP

$1,072 USD

View

Retailer 10

£896 GBP

View

Retailer 11

£915 GBP

€1,161 EUR

View

Retailer 12

£972 GBP

$1,295 USD

View

Retailer 13

£1,033 GBP

ZAR 22,226 ZAR

View

Retailer 14

£1,229 GBP

$1,637 USD

View

Price last confirmed 7 days ago

B+

Retailer 15

£1,305 GBP

$1,738 USD

View

B+

Retailer 16

£1,399 GBP

A$2,866 AUD

View

Price last confirmed 8 days ago

B+

Retailer 17

£1,581 GBP

$2,105 USD

View

Price last confirmed 29 days ago

B+

Retailer 18

£1,751 GBP

View

B+

Retailer 19

£1,804 GBP

A$3,696 AUD

View

Price last confirmed 21 days ago

B+

Retailer 20

£1,814 GBP

$2,416 USD

View

B+

Retailer 21

£1,827 GBP

$2,433 USD

View

Price last confirmed 87 days ago

B+

Retailer 22

£1,895 GBP

SGD 3,411 SGD

View

B+

Retailer 23

£1,918 GBP

$2,554 USD

View

B+

Retailer 24

£1,940 GBP

$2,584 USD

View

B+

Retailer 25

£1,964 GBP

$2,615 USD

View

B+

Retailer 26

£2,372 GBP

View

Most Expensive

Brilliant Earth

14070128A · Oct 29

£2,846 GBP

$3,790 USD

View

26 more retailers have this diamond

Prices start from £542 GBPSave up to £2,304 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

1.64ct Princess

£542 GBP