Marquise|Lab Grown|IGI

1.59ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG790656718

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790656718

Diamond specifications and retailer prices

From $820 NZD

$462 USD

As of October 30, 2026

Save $4,769 NZD (85%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $5,589 NZD at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct lab-grown marquise 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 LG790656718 or 790656718. Listed at 30 retailers as of October 28, 2026, with prices from $820 to $5,589, a $4,769 spread on the same certified stone. Brilliant Earth lists it at $5,589. 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 angle32.8°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG790656718

Dimensions12.27 × 6.12 × 12.27 mm

L/W Ratio2.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG790656718

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: $5,589 NZD|Low: $917 NZD|High: $5,607 NZD|Avg: $2,647 NZD|-0.3%

Brilliant Earth

Retailer 2

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Retailer 24

October 30, 2026

Retailer 2$917 NZD

Retailer 24$917 NZD

Retailer 6$1,017 NZD

Retailer 23$1,113 NZD

Retailer 20$1,269 NZD

Retailer 10$1,366 NZD

Retailer 9$1,574 NZD

Retailer 21$1,619 NZD

Retailer 3$1,658 NZD

Retailer 13$1,684 NZD

Retailer 19$1,747 NZD

Retailer 7$2,076 NZD

Retailer 4$2,354 NZD

Retailer 18$2,368 NZD

Retailer 15$2,974 NZD

Retailer 12$3,230 NZD

Retailer 8$3,268 NZD

Retailer 14$3,322 NZD

Retailer 5$3,568 NZD

Retailer 11$3,601 NZD

Retailer 22$3,738 NZD

Retailer 17$4,223 NZD

Retailer 16$4,427 NZD

Brilliant Earth$5,589 NZD

30 data points across 24 retailers

30 retailers$820 NZD to $5,589 NZD

A+

Cheapest Retailer

$820 NZD

$462 USD

Retailer 2

$917 NZD

$517 USD

View

Final sale: no returns

Retailer 3

$917 NZD

$517 USD

View

Retailer 4

$1,017 NZD

$573 USD

View

Price last confirmed 14 days ago

Retailer 5

$1,017 NZD

$573 USD

View

Retailer 6

$1,113 NZD

HK$4,900 HKD

View

Retailer 7

$1,269 NZD

$715 USD

View

Retailer 8

$1,366 NZD

$770 USD

View

Retailer 9

$1,574 NZD

$887 USD

View

Retailer 10

$1,619 NZD

€869 EUR

View

Retailer 11

$1,658 NZD

A$1,438 AUD

View

Retailer 12

$1,684 NZD

£747 GBP

View

Retailer 13

$1,747 NZD

ZAR 15,906 ZAR

View

Retailer 14

$2,076 NZD

$1,170 USD

View

Retailer 15

$2,354 NZD

$1,327 USD

View

Retailer 16

$2,368 NZD

A$2,053 AUD

View

Retailer 17

$2,974 NZD

£1,320 GBP

View

B+

Retailer 18

$3,230 NZD

SGD 2,460 SGD

View

B+

Retailer 19

$3,268 NZD

$1,842 USD

View

B+

Retailer 20

$3,322 NZD

$1,872 USD

View

B+

Retailer 21

$3,419 NZD

$1,927 USD

View

B+

Retailer 22

$3,568 NZD

$2,011 USD

View

B+

Retailer 23

$3,601 NZD

$2,030 USD

View

B+

Retailer 24

$3,738 NZD

£1,659 GBP

View

Retailer 25

$4,007 NZD

$2,258 USD

View

Price last confirmed 51 days ago

Retailer 26

$4,223 NZD

$2,380 USD

View

Price last confirmed 23 days ago

B+

Retailer 27

$4,349 NZD

£1,930 GBP

View

Retailer 28

$4,427 NZD

A$3,839 AUD

View

Price last confirmed 22 days ago

Retailer 29

$5,589 NZD

$3,150 USD

View

Price last confirmed 14 days ago

Most Expensive

Brilliant Earth

20473735A · Oct 28

$5,589 NZD

$3,150 USD

View

29 more retailers have this diamond

Prices start from $820 NZDSave up to $4,769 NZD

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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