Marquise|Lab Grown|IGI

1.58ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG618454374

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG618454374

Diamond specifications and retailer prices

From $1,363 NZD

$768 USD

As of October 30, 2026

Save $4,952 NZD (78%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $6,315 NZD at With Clarity · As of October 30, 2026

View at With Clarity

About this 1.58ct lab-grown marquise diamond

This 1.58ct 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 LG618454374 or 618454374. Listed at 30 retailers as of October 30, 2026, with prices from $1,363 to $6,315, a $4,952 spread on the same certified stone. With Clarity lists it at $6,315. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.3°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618454374

Dimensions12.05 × 6.07 × 3.84 mm

L/W Ratio1.99

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 LG618454374

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: $3,150 NZD|Low: $1,091 NZD|High: $6,315 NZD|Avg: $3,152 NZD|-3.8%

Retailer 1

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

With Clarity

October 31, 2026

Retailer 10$1,091 NZD

Retailer 9$1,352 NZD

Retailer 19$1,363 NZD

Retailer 20$1,411 NZD

Retailer 2$1,544 NZD

Retailer 3$1,726 NZD

Retailer 15$1,913 NZD

Retailer 17$2,075 NZD

Retailer 16$2,118 NZD

Retailer 8$2,147 NZD

Retailer 18$2,324 NZD

Retailer 1$3,150 NZD

Retailer 11$3,207 NZD

Retailer 22$3,355 NZD

Retailer 14$3,948 NZD

Retailer 7$4,315 NZD

Retailer 6$4,370 NZD

Retailer 4$4,465 NZD

Retailer 13$4,498 NZD

Retailer 5$4,529 NZD

Retailer 12$4,666 NZD

Retailer 21$5,902 NZD

With Clarity$6,315 NZD

34 data points across 23 retailers

30 retailers$1,363 NZD to $6,315 NZD

Retailer 1

$1,091 NZD

$615 USD

Price last confirmed 22 days ago

Retailer 2

$1,130 NZD

$637 USD

View

Price last confirmed 30 days ago

Retailer 3

$1,230 NZD

$693 USD

View

Price last confirmed 31 days ago

Retailer 4

$1,293 NZD

$729 USD

View

Price last confirmed 32 days ago

Retailer 5

$1,352 NZD

$762 USD

View

Price last confirmed 22 days ago

Retailer 6

$1,352 NZD

$762 USD

View

Price last confirmed 20 days ago

Retailer 7

$1,363 NZD

$768 USD

View

Final sale: no returns

Retailer 8

$1,411 NZD

$795 USD

View

Retailer 9

$1,544 NZD

HK$6,800 HKD

View

Retailer 10

$1,726 NZD

$973 USD

View

Retailer 11

$1,913 NZD

$1,078 USD

View

Retailer 12

$2,075 NZD

€1,114 EUR

View

Retailer 13

$2,118 NZD

£940 GBP

View

Retailer 14

$2,147 NZD

$1,210 USD

View

Retailer 15

$2,324 NZD

ZAR 21,160 ZAR

View

B+

Retailer 16

$3,150 NZD

A$2,731 AUD

View

Retailer 17

$3,207 NZD

$1,808 USD

View

B+

Retailer 18

$3,355 NZD

$1,891 USD

View

Retailer 19

$3,556 NZD

$2,004 USD

View

Price last confirmed 20 days ago

B+

Retailer 20

$3,556 NZD

$2,004 USD

View

Retailer 21

$3,687 NZD

$2,078 USD

View

Price last confirmed 30 days ago

B+

Retailer 22

$3,948 NZD

£1,752 GBP

View

B+

Retailer 23

$4,315 NZD

$2,432 USD

View

B+

Retailer 24

$4,370 NZD

$2,463 USD

View

B+

Retailer 25

$4,465 NZD

$2,517 USD

View

B+

Retailer 26

$4,498 NZD

SGD 3,426 SGD

View

Retailer 27

$4,529 NZD

A$3,927 AUD

View

Price last confirmed 22 days ago

B+

Retailer 28

$4,666 NZD

$2,630 USD

View

Retailer 29

$5,902 NZD

£2,619 GBP

View

Most Expensive

With Clarity

618454374 · Oct 30

$6,315 NZD

$3,559 USD

View

29 more retailers have this diamond

Prices start from $1,363 NZDSave up to $4,952 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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1.58ct Marquise

$1,363 NZD