Radiant|Lab Grown|IGI

1.64ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG705509687

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

Certificate IGI LG705509687

Diamond specifications and retailer prices

From $444 SGD

$347 USD

As of October 30, 2026

Save $4,593 SGD (91%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $5,037 SGD at Brilliant Earth · As of October 24, 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 LG705509687 or 705509687. Listed at 28 retailers as of October 24, 2026, with prices from $444 to $5,037, a $4,593 spread on the same certified stone. Brilliant Earth lists it at $5,037. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.7°

Pavilion angle33.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG705509687

Dimensions8.89 × 5.91 × 3.77 mm

L/W Ratio1.50

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG705509687

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: $4,295 SGD|Low: $437 SGD|High: $5,280 SGD|Avg: $1,674 SGD|-18.6%

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

Retailer 20

Retailer 21

Retailer 22

Retailer 23

Retailer 24

October 30, 2026

Retailer 12$437 SGD

Retailer 6$444 SGD

Retailer 10$508 SGD

Retailer 16$542 SGD

Retailer 5$687 SGD

Retailer 21$690 SGD

Retailer 2$715 SGD

Retailer 22$828 SGD

Retailer 11$906 SGD

Retailer 20$932 SGD

Retailer 13$974 SGD

Retailer 4$1,175 SGD

Retailer 18$1,259 SGD

Retailer 24$1,510 SGD

Retailer 14$1,744 SGD

Retailer 17$1,798 SGD

Retailer 3$1,888 SGD

Retailer 8$1,969 SGD

Retailer 9$1,992 SGD

Retailer 15$2,104 SGD

Retailer 7$2,177 SGD

Retailer 23$3,516 SGD

Retailer 19$3,541 SGD

Brilliant Earth$4,295 SGD

32 data points across 24 retailers

28 retailers$444 SGD to $5,037 SGD

Retailer 1

$437 SGD

$342 USD

Price last confirmed 10 days ago

Retailer 2

$444 SGD

$347 USD

View

Final sale: no returns

Retailer 3

$508 SGD

$397 USD

View

Price last confirmed 11 days ago

Retailer 4

$542 SGD

$424 USD

View

Price last confirmed 15 days ago

Retailer 5

$542 SGD

$424 USD

View

Price last confirmed 9 days ago

Retailer 6

$687 SGD

HK$4,200 HKD

View

Retailer 7

$690 SGD

$540 USD

View

Retailer 8

$715 SGD

$559 USD

View

Retailer 9

$828 SGD

$648 USD

View

Retailer 10

$906 SGD

€675 EUR

View

Price last confirmed 8 days ago

Retailer 11

$932 SGD

ZAR 11,779 ZAR

View

Retailer 12

$974 SGD

£600 GBP

View

Retailer 13

$1,175 SGD

$919 USD

View

Retailer 14

$1,259 SGD

A$1,515 AUD

View

B+

Retailer 15

$1,510 SGD

$1,181 USD

View

Retailer 16

$1,744 SGD

$1,364 USD

View

Price last confirmed 9 days ago

B+

Retailer 17

$1,798 SGD

$1,407 USD

View

B+

Retailer 18

$1,852 SGD

$1,449 USD

View

B+

Retailer 19

$1,888 SGD

$1,477 USD

View

B+

Retailer 20

$1,969 SGD

$1,540 USD

View

B+

Retailer 21

$1,992 SGD

View

Retailer 22

$2,104 SGD

£1,296 GBP

View

Price last confirmed 10 days ago

B+

Retailer 23

$2,177 SGD

£1,341 GBP

View

Retailer 24

$3,516 SGD

$2,750 USD

View

Retailer 25

$3,541 SGD

$2,770 USD

View

Retailer 26

$3,864 SGD

£2,380 GBP

View

Retailer 27

$4,295 SGD

$3,360 USD

View

Most Expensive

Brilliant Earth

14166265A · Oct 24

$5,037 SGD

$3,940 USD

View

27 more retailers have this diamond

Prices start from $444 SGDSave up to $4,593 SGD

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.

Similar diamonds

1.64ct Radiant

$444 SGD