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 $920 AUD

$646 USD

As of October 30, 2026

Save $5,515 AUD (86%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: $8,741 AUD 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: $6,435 AUD|Low: $920 AUD|High: $8,485 AUD|Avg: $2,781 AUD|-24.2%

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 14$920 AUD

Retailer 22$999 AUD

Retailer 2$1,028 AUD

Retailer 12$1,066 AUD

Retailer 17$1,209 AUD

Retailer 20$1,317 AUD

Retailer 4$1,434 AUD

Retailer 13$1,704 AUD

Retailer 21$1,742 AUD

Retailer 5$1,819 AUD

Retailer 19$1,959 AUD

Retailer 7$2,261 AUD

Retailer 6$2,478 AUD

Retailer 10$2,998 AUD

Retailer 8$3,319 AUD

Retailer 9$3,679 AUD

Retailer 16$3,754 AUD

Retailer 11$3,875 AUD

Retailer 18$4,516 AUD

Retailer 3$5,460 AUD

Brilliant Earth$6,435 AUD

Retailer 15$6,435 AUD

25 data points across 22 retailers

25 retailers$920 AUD to $6,435 AUD

Cheapest Retailer

$920 AUD

$646 USD

Retailer 2

$999 AUD

$702 USD

View

Retailer 3

$1,028 AUD

$722 USD

View

Final sale: no returns

Retailer 4

$1,066 AUD

$749 USD

View

Retailer 5

$1,137 AUD

$799 USD

View

Price last confirmed 14 days ago

Retailer 6

$1,209 AUD

£669 GBP

View

Retailer 7

$1,317 AUD

$925 USD

View

Retailer 8

$1,434 AUD

$1,007 USD

View

Retailer 9

$1,704 AUD

£942 GBP

View

Retailer 10

$1,742 AUD

$1,224 USD

View

Retailer 11

$1,819 AUD

€1,217 EUR

View

Price last confirmed 8 days ago

B+

Retailer 12

$1,959 AUD

ZAR 22,229 ZAR

View

B+

Retailer 13

$2,261 AUD

$1,588 USD

View

B+

Retailer 14

$2,478 AUD

$1,741 USD

View

B+

Retailer 15

$2,998 AUD

$2,106 USD

View

B+

Retailer 16

$3,319 AUD

£1,836 GBP

View

B+

Retailer 17

$3,505 AUD

$2,462 USD

View

B+

Retailer 18

$3,679 AUD

$2,584 USD

View

B+

Retailer 19

$3,754 AUD

$2,637 USD

View

B+

Retailer 20

$3,875 AUD

SGD 3,678 SGD

View

B+

Retailer 21

$4,516 AUD

£2,498 GBP

View

Retailer 22

$5,460 AUD

$3,835 USD

View

Retailer 23

$6,435 AUD

$4,520 USD

View

Retailer 24

$6,435 AUD

$4,520 USD

View

Price last confirmed 10 days ago

Most Expensive

Brilliant Earth

20575454A · Sep 28

$8,741 AUD

$6,140 USD

View

Price last confirmed 32 days ago

24 more retailers have this diamond

Prices start from $920 AUDSave up to $5,515 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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