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 $1,093 AUD

$768 USD

As of October 30, 2026

Save $3,973 AUD (78%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $5,067 AUD 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 $1,093 to $5,067, a $3,973 spread on the same certified stone. With Clarity lists it at $5,067. 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: $3,744 AUD|Low: $876 AUD|High: $5,067 AUD|Avg: $2,528 AUD|-19.1%

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 30, 2026

Retailer 10$876 AUD

Retailer 9$1,085 AUD

Retailer 18$1,093 AUD

Retailer 20$1,132 AUD

Retailer 2$1,239 AUD

Retailer 3$1,385 AUD

Retailer 15$1,535 AUD

Retailer 16$1,665 AUD

Retailer 12$1,699 AUD

Retailer 8$1,723 AUD

Retailer 17$1,865 AUD

Retailer 19$2,525 AUD

Retailer 11$2,573 AUD

Retailer 22$2,692 AUD

Retailer 14$3,168 AUD

Retailer 7$3,462 AUD

Retailer 6$3,506 AUD

Retailer 4$3,583 AUD

Retailer 13$3,609 AUD

Retailer 5$3,634 AUD

Retailer 1$3,744 AUD

Retailer 21$4,735 AUD

With Clarity$5,067 AUD

33 data points across 23 retailers

30 retailers$1,093 AUD to $5,067 AUD

Retailer 1

$876 AUD

$615 USD

Price last confirmed 22 days ago

Retailer 2

$907 AUD

$637 USD

View

Price last confirmed 30 days ago

Retailer 3

$987 AUD

$693 USD

View

Price last confirmed 31 days ago

Retailer 4

$1,038 AUD

$729 USD

View

Price last confirmed 31 days ago

Retailer 5

$1,085 AUD

$762 USD

View

Price last confirmed 22 days ago

Retailer 6

$1,085 AUD

$762 USD

View

Price last confirmed 20 days ago

Retailer 7

$1,093 AUD

$768 USD

View

Final sale: no returns

Retailer 8

$1,132 AUD

$795 USD

View

Retailer 9

$1,239 AUD

HK$6,800 HKD

View

Retailer 10

$1,385 AUD

$973 USD

View

Retailer 11

$1,535 AUD

$1,078 USD

View

Retailer 12

$1,665 AUD

€1,114 EUR

View

Retailer 13

$1,699 AUD

£940 GBP

View

Retailer 14

$1,723 AUD

$1,210 USD

View

Retailer 15

$1,865 AUD

ZAR 21,160 ZAR

View

Retailer 16

$2,525 AUD

View

Price last confirmed 9 days ago

Retailer 17

$2,573 AUD

$1,808 USD

View

B+

Retailer 18

$2,692 AUD

$1,891 USD

View

Retailer 19

$2,853 AUD

$2,004 USD

View

Price last confirmed 20 days ago

B+

Retailer 20

$2,853 AUD

$2,004 USD

View

Retailer 21

$2,958 AUD

$2,078 USD

View

Price last confirmed 30 days ago

B+

Retailer 22

$3,168 AUD

£1,752 GBP

View

B+

Retailer 23

$3,462 AUD

$2,432 USD

View

B+

Retailer 24

$3,506 AUD

$2,463 USD

View

B+

Retailer 25

$3,583 AUD

$2,517 USD

View

B+

Retailer 26

$3,609 AUD

SGD 3,426 SGD

View

Retailer 27

$3,634 AUD

View

Price last confirmed 21 days ago

B+

Retailer 28

$3,744 AUD

$2,630 USD

View

Retailer 29

$4,735 AUD

£2,619 GBP

View

Most Expensive

With Clarity

618454374 · Oct 30

$5,067 AUD

$3,559 USD

View

29 more retailers have this diamond

Prices start from $1,093 AUDSave up to $3,973 AUD

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

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