Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG613379389

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

Certificate IGI LG613379389

Diamond specifications and retailer prices

From $566 NZD

$319 USD

As of October 30, 2026

Save $4,668 NZD (89%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: $5,234 NZD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant 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 LG613379389 or 613379389. Listed at 29 retailers as of October 30, 2026, with prices from $566 to $5,234, a $4,668 spread on the same certified stone. Brilliant Earth lists it at $5,234. 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°

Pavilion angle34.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG613379389

Dimensions8.14 × 5.83 × 3.95 mm

L/W Ratio1.40

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 LG613379389

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 30

Current: $5,234 NZD|Low: $566 NZD|High: $6,228 NZD|Avg: $1,922 NZD|-16.0%

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

November 1, 2026

Retailer 3$566 NZD

Retailer 2$633 NZD

Retailer 10$818 NZD

Retailer 4$990 NZD

Retailer 20$994 NZD

Retailer 16$1,140 NZD

Retailer 8$1,162 NZD

Retailer 19$1,205 NZD

Retailer 15$1,251 NZD

Retailer 9$1,581 NZD

Retailer 18$1,634 NZD

Retailer 5$1,932 NZD

Retailer 21$2,056 NZD

Retailer 11$2,335 NZD

Retailer 14$2,335 NZD

Retailer 12$2,353 NZD

Retailer 7$2,697 NZD

Retailer 6$2,790 NZD

Retailer 13$2,810 NZD

Retailer 17$2,981 NZD

Brilliant Earth$5,234 NZD

34 data points across 21 retailers

29 retailers$566 NZD to $5,234 NZD

Cheapest Retailer

$566 NZD

$319 USD

Retailer 2

$566 NZD

$319 USD

View

Price last confirmed 24 days ago

Retailer 3

$589 NZD

$332 USD

View

Price last confirmed 32 days ago

Retailer 4

$633 NZD

$357 USD

View

Final sale: no returns

Retailer 5

$683 NZD

$385 USD

View

Price last confirmed 35 days ago

Retailer 6

$701 NZD

$395 USD

View

Price last confirmed 29 days ago

Retailer 7

$720 NZD

$406 USD

View

Price last confirmed 34 days ago

Retailer 8

$818 NZD

HK$3,600 HKD

View

Retailer 9

$990 NZD

$558 USD

View

Retailer 10

$994 NZD

$560 USD

View

Retailer 11

$1,140 NZD

€612 EUR

View

Retailer 12

$1,162 NZD

$655 USD

View

Retailer 13

$1,205 NZD

ZAR 10,972 ZAR

View

Retailer 14

$1,251 NZD

£555 GBP

View

Retailer 15

$1,581 NZD

$891 USD

View

Retailer 16

$1,634 NZD

A$1,417 AUD

View

B+

Retailer 17

$1,932 NZD

$1,089 USD

View

B+

Retailer 18

$2,056 NZD

$1,159 USD

View

Retailer 19

$2,255 NZD

$1,271 USD

View

Price last confirmed 22 days ago

B+

Retailer 20

$2,255 NZD

$1,271 USD

View

B+

Retailer 21

$2,335 NZD

$1,316 USD

View

B+

Retailer 22

$2,335 NZD

$1,316 USD

View

Retailer 23

$2,349 NZD

$1,324 USD

View

Price last confirmed 32 days ago

B+

Retailer 24

$2,353 NZD

SGD 1,792 SGD

View

B+

Retailer 25

$2,697 NZD

$1,520 USD

View

B+

Retailer 26

$2,790 NZD

$1,573 USD

View

B+

Retailer 27

$2,810 NZD

£1,247 GBP

View

B+

Retailer 28

$2,981 NZD

A$2,585 AUD

View

Most Expensive

Brilliant Earth

8881666A · Oct 31

$5,234 NZD

$2,950 USD

View

28 more retailers have this diamond

Prices start from $566 NZDSave up to $4,668 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 Radiant

$566 NZD