Radiant|Lab Grown|IGI

1.86ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799646888

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

Certificate IGI LG799646888

Diamond specifications and retailer prices

From $1,146 NZD

$646 USD

As of October 30, 2026

Save $6,874 NZD (86%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: $10,894 NZD at Brilliant Earth · As of September 28, 2026

View at Brilliant Earth

About this 1.86ct lab-grown radiant diamond

This 1.86ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799646888 or 799646888. Listed at 25 retailers as of October 30, 2026, with a 600% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle41°

Pavilion angle36°

OriginLab Grown

Grading LabIGI

CertificateIGI LG799646888

Dimensions8.63 × 6.02 × 4.17 mm

L/W Ratio1.43

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 LG799646888

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: $8,020 NZD|Low: $1,146 NZD|High: $10,575 NZD|Avg: $3,466 NZD|-24.2%

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

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Retailer 21

Retailer 22

October 31, 2026

Retailer 14$1,146 NZD

Retailer 3$1,246 NZD

Retailer 13$1,281 NZD

Retailer 12$1,329 NZD

Retailer 18$1,507 NZD

Retailer 21$1,641 NZD

Retailer 5$1,787 NZD

Retailer 16$2,123 NZD

Retailer 22$2,172 NZD

Retailer 2$2,273 NZD

Retailer 20$2,441 NZD

Retailer 7$2,818 NZD

Retailer 6$3,089 NZD

Retailer 10$3,737 NZD

Retailer 8$4,137 NZD

Retailer 9$4,585 NZD

Retailer 17$4,679 NZD

Retailer 11$4,829 NZD

Retailer 19$5,629 NZD

Retailer 4$6,804 NZD

Brilliant Earth$8,020 NZD

Retailer 15$8,020 NZD

25 data points across 22 retailers

25 retailers$1,146 NZD to $8,020 NZD

Cheapest Retailer

$1,146 NZD

$646 USD

Retailer 2

$1,246 NZD

$702 USD

View

Retailer 3

$1,281 NZD

$722 USD

View

Final sale: no returns

Retailer 4

$1,329 NZD

$749 USD

View

Retailer 5

$1,418 NZD

$799 USD

View

Price last confirmed 15 days ago

Retailer 6

$1,507 NZD

£669 GBP

View

Retailer 7

$1,641 NZD

$925 USD

View

Retailer 8

$1,787 NZD

$1,007 USD

View

Retailer 9

$2,123 NZD

£942 GBP

View

Retailer 10

$2,172 NZD

$1,224 USD

View

Retailer 11

$2,273 NZD

€1,220 EUR

View

B+

Retailer 12

$2,441 NZD

ZAR 22,229 ZAR

View

B+

Retailer 13

$2,818 NZD

$1,588 USD

View

B+

Retailer 14

$3,089 NZD

$1,741 USD

View

B+

Retailer 15

$3,737 NZD

$2,106 USD

View

B+

Retailer 16

$4,137 NZD

£1,836 GBP

View

B+

Retailer 17

$4,368 NZD

$2,462 USD

View

B+

Retailer 18

$4,585 NZD

$2,584 USD

View

B+

Retailer 19

$4,679 NZD

$2,637 USD

View

B+

Retailer 20

$4,829 NZD

SGD 3,678 SGD

View

B+

Retailer 21

$5,629 NZD

£2,498 GBP

View

Retailer 22

$6,804 NZD

$3,835 USD

View

Retailer 23

$8,020 NZD

$4,520 USD

View

Retailer 24

$8,020 NZD

$4,520 USD

View

Price last confirmed 10 days ago

Most Expensive

Brilliant Earth

20575454A · Sep 28

$10,894 NZD

$6,140 USD

View

Price last confirmed 33 days ago

24 more retailers have this diamond

Prices start from $1,146 NZDSave up to $6,874 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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