Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG805666699

Shape and cutting style on the report: Round brilliant

Certificate IGI LG805666699

Diamond specifications and retailer prices

From $935 NZD

A$808 AUD

As of October 29, 2026

17 retailers carry this diamond

Most expensive: $2,117 NZD at Reve Diamonds · As of October 21, 2026

View at Reve Diamonds

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805666699 or 805666699. Listed at 17 retailers as of October 29, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.3°

Pavilion angle41.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG805666699

Dimensions7.36 × 7.29 × 4.48 mm

L/W Ratio1.01

Girdle conditionFaceted

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG805666699

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29

Current: $393 NZD|Low: $283 NZD|High: $2,117 NZD|Avg: $938 NZD|+39.0%

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

Reve Diamonds

October 21, 2026

Retailer 5$354 NZD

Retailer 1$393 NZD

Retailer 17$410 NZD

Retailer 7$438 NZD

Retailer 18$438 NZD

Retailer 13$727 NZD

Retailer 6$744 NZD

Retailer 11$758 NZD

Retailer 3$762 NZD

Retailer 12$767 NZD

Retailer 10$935 NZD

Retailer 4$1,029 NZD

Retailer 16$1,152 NZD

Retailer 14$1,309 NZD

Retailer 8$1,408 NZD

Retailer 2$1,504 NZD

Retailer 9$1,549 NZD

Retailer 15$2,060 NZD

Reve Diamonds$2,117 NZD

36 data points across 19 retailers

17 retailers

Retailer 1

$354 NZD

$199 USD

Price last confirmed 9 days ago

Retailer 2

$410 NZD

$230 USD

View

Price last confirmed 10 days ago

Retailer 3

$438 NZD

$246 USD

View

Price last confirmed 14 days ago

Retailer 4

$438 NZD

$246 USD

View

Price last confirmed 11 days ago

Retailer 5

$744 NZD

$418 USD

View

Price last confirmed 9 days ago

Retailer 6

$758 NZD

£335 GBP

View

Price last confirmed 9 days ago

Retailer 7

$762 NZD

$428 USD

View

Price last confirmed 9 days ago

Retailer 8

$767 NZD

£339 GBP

View

Price last confirmed 9 days ago

B+

Retailer 9

$935 NZD

A$808 AUD

View

Retailer 10

$1,029 NZD

$578 USD

View

Price last confirmed 8 days ago

Retailer 11

$1,152 NZD

$647 USD

View

Price last confirmed 8 days ago

Retailer 12

$1,309 NZD

$735 USD

View

Price last confirmed 8 days ago

Retailer 13

$1,408 NZD

$791 USD

View

Price last confirmed 12 days ago

Retailer 14

$1,504 NZD

$845 USD

View

Price last confirmed 9 days ago

Retailer 15

$1,549 NZD

$870 USD

View

Price last confirmed 8 days ago

Retailer 16

$2,060 NZD

£911 GBP

View

Price last confirmed 11 days ago

Most Expensive

Reve Diamonds

DD05CB7DE · Oct 21

$2,117 NZD

$1,189 USD

View

Price last confirmed 9 days ago

16 more retailers have this diamond

Prices start from $935 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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