Radiant|Lab Grown|IGI

1.64ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700511937

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

Certificate IGI LG700511937

Diamond specifications and retailer prices

From $493 AUD

$346 USD

As of October 30, 2026

Save $4,917 AUD (91%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $5,410 AUD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700511937 or 700511937. Listed at 30 retailers as of October 30, 2026, with prices from $493 to $5,410, a $4,917 spread on the same certified stone. Brilliant Earth lists it at $5,410. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle41°

Pavilion angle31.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700511937

Dimensions8.70 × 5.82 × 3.78 mm

L/W Ratio1.49

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 LG700511937

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: $5,410 AUD|Low: $493 AUD|High: $6,961 AUD|Avg: $1,897 AUD|-22.3%

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 3$493 AUD

Retailer 13$550 AUD

Retailer 9$711 AUD

Retailer 19$826 AUD

Retailer 22$857 AUD

Retailer 7$981 AUD

Retailer 2$985 AUD

Retailer 18$1,048 AUD

Retailer 16$1,096 AUD

Retailer 8$1,387 AUD

Retailer 17$1,416 AUD

Retailer 4$1,686 AUD

Retailer 21$1,789 AUD

Retailer 11$2,022 AUD

Retailer 12$2,036 AUD

Retailer 6$2,305 AUD

Retailer 5$2,361 AUD

Retailer 20$2,388 AUD

Retailer 10$2,535 AUD

Retailer 14$2,730 AUD

Retailer 15$4,214 AUD

Brilliant Earth$5,410 AUD

34 data points across 22 retailers

30 retailers$493 AUD to $5,410 AUD

Cheapest Retailer

$493 AUD

$346 USD

Retailer 2

$493 AUD

$346 USD

View

Price last confirmed 23 days ago

Retailer 3

$524 AUD

$368 USD

View

Price last confirmed 31 days ago

Retailer 4

$550 AUD

$386 USD

View

Final sale: no returns

Retailer 5

$606 AUD

$426 USD

View

Price last confirmed 34 days ago

Retailer 6

$611 AUD

$429 USD

View

Price last confirmed 28 days ago

Retailer 7

$641 AUD

$450 USD

View

Price last confirmed 33 days ago

Retailer 8

$711 AUD

HK$3,900 HKD

View

Retailer 9

$826 AUD

$580 USD

View

Retailer 10

$857 AUD

$602 USD

View

Retailer 11

$981 AUD

$689 USD

View

Retailer 12

$985 AUD

€659 EUR

View

Retailer 13

$1,048 AUD

ZAR 11,898 ZAR

View

Retailer 14

$1,096 AUD

£606 GBP

View

Retailer 15

$1,387 AUD

$974 USD

View

Retailer 16

$1,416 AUD

View

B+

Retailer 17

$1,686 AUD

$1,184 USD

View

B+

Retailer 18

$1,789 AUD

$1,257 USD

View

B+

Retailer 19

$1,962 AUD

$1,378 USD

View

Retailer 20

$1,962 AUD

$1,378 USD

View

Price last confirmed 21 days ago

B+

Retailer 21

$2,022 AUD

$1,420 USD

View

B+

Retailer 22

$2,036 AUD

SGD 1,933 SGD

View

Retailer 23

$2,086 AUD

$1,465 USD

View

Price last confirmed 31 days ago

B+

Retailer 24

$2,305 AUD

$1,619 USD

View

B+

Retailer 25

$2,361 AUD

$1,658 USD

View

B+

Retailer 26

$2,388 AUD

£1,321 GBP

View

Retailer 27

$2,535 AUD

View

Price last confirmed 29 days ago

Retailer 28

$2,730 AUD

$1,918 USD

View

Retailer 29

$4,214 AUD

$2,960 USD

View

Price last confirmed 33 days ago

Most Expensive

Brilliant Earth

14847337A · Oct 31

$5,410 AUD

$3,800 USD

View

29 more retailers have this diamond

Prices start from $493 AUDSave up to $4,917 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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