Round|Lab Grown|IGI

6.45ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG809602806

Shape and cutting style on the report: Round brilliant

Certificate IGI LG809602806

Diamond specifications and retailer prices

From $19,462 NZD

$10,969 USD

As of November 1, 2026

Save $47,189 NZD (71%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: $66,652 NZD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 6.45ct lab-grown round diamond

This 6.45ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG809602806 or 809602806. Listed at 26 retailers as of October 31, 2026, with prices from $19,462 to $66,652, a $47,189 spread on the same certified stone. Taylor and Hart lists it at $66,652. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.45

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG809602806

Dimensions12.10 × 12.01 × 7.20 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG809602806

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: Nov 1

Current: $41,792 NZD|Low: $19,462 NZD|High: $66,652 NZD|Avg: $35,866 NZD|-0.2%

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

Taylor and Hart

November 1, 2026

Retailer 6$19,462 NZD

Retailer 2$20,901 NZD

Retailer 7$21,361 NZD

Retailer 4$21,446 NZD

Retailer 16$21,842 NZD

Retailer 12$22,033 NZD

Retailer 11$26,213 NZD

Retailer 5$31,490 NZD

Retailer 9$34,751 NZD

Retailer 13$35,663 NZD

Retailer 15$37,117 NZD

Retailer 3$38,398 NZD

Retailer 1$41,792 NZD

Retailer 14$42,811 NZD

Retailer 8$61,078 NZD

Retailer 10$61,647 NZD

Taylor and Hart$66,652 NZD

40 data points across 17 retailers

26 retailers$19,462 NZD to $66,652 NZD

Retailer 1

$19,072 NZD

$10,749 USD

Price last confirmed 22 days ago

Retailer 2

$19,072 NZD

$10,749 USD

View

Price last confirmed 40 days ago

Retailer 3

$19,462 NZD

$10,969 USD

View

Retailer 4

$19,835 NZD

$11,179 USD

View

Price last confirmed 39 days ago

Retailer 5

$20,734 NZD

$11,686 USD

View

Price last confirmed 42 days ago

Retailer 6

$20,734 NZD

$11,686 USD

View

Price last confirmed 25 days ago

Retailer 7

$20,901 NZD

$11,780 USD

View

Price last confirmed 15 days ago

Retailer 8

$21,361 NZD

$12,039 USD

View

Final sale: no returns

Retailer 9

$21,446 NZD

$12,087 USD

View

Retailer 10

$21,819 NZD

$12,297 USD

View

Price last confirmed 38 days ago

Retailer 11

$21,842 NZD

$12,310 USD

View

Retailer 12

$22,033 NZD

$12,418 USD

View

Retailer 13

$22,124 NZD

$12,469 USD

View

Price last confirmed 22 days ago

Retailer 14

$22,124 NZD

$12,469 USD

View

Price last confirmed 30 days ago

Retailer 15

$26,213 NZD

£11,633 GBP

View

Retailer 16

$31,490 NZD

$17,748 USD

View

B+

Retailer 17

$34,751 NZD

£15,422 GBP

View

B+

Retailer 18

$35,663 NZD

$20,100 USD

View

B+

Retailer 19

$37,117 NZD

€19,923 EUR

View

B+

Retailer 20

$38,398 NZD

$21,641 USD

View

B+

Retailer 21

$40,466 NZD

$22,807 USD

View

B+

Retailer 22

$41,792 NZD

A$36,237 AUD

View

B+

Retailer 23

$42,811 NZD

ZAR 389,798 ZAR

View

Retailer 24

$61,078 NZD

$34,423 USD

View

Retailer 25

$61,647 NZD

$34,744 USD

View

Most Expensive

Taylor and Hart

RZPOHI2 · Oct 31

$66,652 NZD

$37,565 USD

View

25 more retailers have this diamond

Prices start from $19,462 NZDSave up to $47,189 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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$19,462 NZD