Marquise|Lab Grown|IGI

1.57ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG615345318

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG615345318

Diamond specifications and retailer prices

From $2,512 NZD

A$2,178 AUD

As of October 31, 2026

20 retailers carry this diamond

Most expensive: $6,494 NZD at Brilliant Earth · As of October 12, 2026

View at Brilliant Earth

About this 1.57ct lab-grown marquise diamond

This 1.57ct lab-grown marquise 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 LG615345318 or 615345318. Listed at 20 retailers as of October 31, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.9°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG615345318

Dimensions12.68 × 5.93 × 3.69 mm

L/W Ratio2.14

Girdle conditionFaceted

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 LG615345318

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 31

Current: $6,494 NZD|Low: $1,077 NZD|High: $9,563 NZD|Avg: $3,228 NZD|-1.6%

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

Retailer 21

Retailer 22

Retailer 23

Retailer 24

Retailer 25

Retailer 26

October 29, 2026

Retailer 21$1,077 NZD

Retailer 18$1,311 NZD

Retailer 24$1,334 NZD

Retailer 16$1,354 NZD

Retailer 9$1,618 NZD

Retailer 13$1,623 NZD

Retailer 25$1,710 NZD

Retailer 17$2,021 NZD

Retailer 15$2,079 NZD

Retailer 20$2,208 NZD

Retailer 23$2,252 NZD

Retailer 2$2,512 NZD

Retailer 4$2,517 NZD

Retailer 3$3,188 NZD

Retailer 10$3,505 NZD

Retailer 19$3,847 NZD

Retailer 26$3,875 NZD

Retailer 8$4,258 NZD

Retailer 14$4,272 NZD

Retailer 5$4,387 NZD

Retailer 7$4,954 NZD

Retailer 12$5,252 NZD

Retailer 22$5,875 NZD

Retailer 11$6,394 NZD

Brilliant Earth$6,494 NZD

Retailer 6$9,563 NZD

30 data points across 26 retailers

20 retailers

Retailer 1

$1,077 NZD

$607 USD

Price last confirmed 22 days ago

Retailer 2

$1,311 NZD

$739 USD

View

Price last confirmed 34 days ago

Retailer 3

$1,334 NZD

$752 USD

View

Price last confirmed 22 days ago

Retailer 4

$2,021 NZD

HK$8,900 HKD

View

Price last confirmed 30 days ago

Retailer 5

$2,079 NZD

$1,172 USD

View

Price last confirmed 20 days ago

Retailer 6

$2,208 NZD

£980 GBP

View

Price last confirmed 20 days ago

Retailer 7

$2,512 NZD

A$2,178 AUD

View

Retailer 8

$2,517 NZD

ZAR 22,916 ZAR

View

Price last confirmed 24 days ago

Retailer 9

$3,188 NZD

$1,797 USD

View

Price last confirmed 20 days ago

Retailer 10

$3,505 NZD

$1,976 USD

View

Price last confirmed 20 days ago

Retailer 11

$3,847 NZD

A$3,336 AUD

View

Price last confirmed 34 days ago

Retailer 12

$3,875 NZD

$2,184 USD

View

Price last confirmed 22 days ago

Retailer 13

$4,258 NZD

$2,400 USD

View

Price last confirmed 22 days ago

Retailer 14

$4,272 NZD

£1,896 GBP

View

Price last confirmed 25 days ago

Retailer 15

$4,387 NZD

$2,473 USD

View

Price last confirmed 22 days ago

Retailer 16

$4,954 NZD

$2,792 USD

View

Price last confirmed 20 days ago

Retailer 17

$5,252 NZD

SGD 4,000 SGD

View

Price last confirmed 21 days ago

Retailer 18

$5,875 NZD

£2,607 GBP

View

Price last confirmed 22 days ago

Retailer 19

$6,394 NZD

A$5,544 AUD

View

Price last confirmed 25 days ago

Most Expensive

Brilliant Earth

16161667Y · Oct 12

$6,494 NZD

$3,660 USD

View

Price last confirmed 20 days ago

19 more retailers have this diamond

Prices start from $2,512 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.

Similar diamonds

1.57ct Marquise

$2,512 NZD