Radiant|Lab Grown|IGI

1.77ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665410575

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

Certificate IGI LG665410575

Diamond specifications and retailer prices

From $463 CAD

$331 USD

As of October 27, 2026

Save $6,017 CAD (93%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $6,480 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665410575 or 665410575. Listed at 30 retailers as of October 27, 2026, with prices from $463 to $6,480, a $6,017 spread on the same certified stone. Brilliant Earth lists it at $6,480. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.7°

Pavilion angle33.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG665410575

Dimensions6.16 × 6.16 × 3.99 mm

L/W Ratio1.00

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 LG665410575

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 27

Current: $6,480 CAD|Low: $463 CAD|High: $6,480 CAD|Avg: $1,730 CAD

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

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Retailer 11

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Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

Retailer 21

Retailer 22

October 29, 2026

Retailer 3$463 CAD

Retailer 19$519 CAD

Retailer 10$663 CAD

Retailer 18$791 CAD

Retailer 4$812 CAD

Retailer 21$933 CAD

Retailer 8$949 CAD

Retailer 17$988 CAD

Retailer 2$1,026 CAD

Retailer 9$1,308 CAD

Retailer 16$1,340 CAD

Retailer 22$1,687 CAD

Retailer 5$1,906 CAD

Retailer 12$1,910 CAD

Retailer 14$1,928 CAD

Retailer 15$1,931 CAD

Retailer 7$2,174 CAD

Retailer 6$2,257 CAD

Retailer 13$2,316 CAD

Retailer 11$2,412 CAD

Retailer 20$3,737 CAD

Brilliant Earth$6,480 CAD

34 data points across 22 retailers

30 retailers$463 CAD to $6,480 CAD

Cheapest Retailer

$463 CAD

$331 USD

Retailer 2

$463 CAD

$331 USD

View

Price last confirmed 21 days ago

Retailer 3

$483 CAD

$345 USD

View

Price last confirmed 29 days ago

Retailer 4

$519 CAD

$371 USD

View

Final sale: no returns

Retailer 5

$561 CAD

$401 USD

View

Price last confirmed 32 days ago

Retailer 6

$575 CAD

$411 USD

View

Price last confirmed 26 days ago

Retailer 7

$592 CAD

$423 USD

View

Price last confirmed 30 days ago

Retailer 8

$663 CAD

HK$3,700 HKD

View

Retailer 9

$791 CAD

$565 USD

View

Retailer 10

$812 CAD

$580 USD

View

Retailer 11

$933 CAD

€635 EUR

View

Retailer 12

$949 CAD

$678 USD

View

Retailer 13

$988 CAD

ZAR 11,405 ZAR

View

Retailer 14

$1,026 CAD

£577 GBP

View

Retailer 15

$1,308 CAD

$935 USD

View

Retailer 16

$1,340 CAD

A$1,473 AUD

View

Retailer 17

$1,687 CAD

$1,205 USD

View

B+

Retailer 18

$1,849 CAD

$1,321 USD

View

Price last confirmed 19 days ago

B+

Retailer 19

$1,849 CAD

$1,321 USD

View

B+

Retailer 20

$1,906 CAD

$1,362 USD

View

B+

Retailer 21

$1,910 CAD

$1,365 USD

View

B+

Retailer 22

$1,927 CAD

$1,377 USD

View

Price last confirmed 29 days ago

B+

Retailer 23

$1,928 CAD

SGD 1,862 SGD

View

B+

Retailer 24

$1,931 CAD

$1,380 USD

View

B+

Retailer 25

$2,174 CAD

$1,553 USD

View

B+

Retailer 26

$2,257 CAD

$1,613 USD

View

B+

Retailer 27

$2,316 CAD

£1,303 GBP

View

B+

Retailer 28

$2,412 CAD

A$2,651 AUD

View

Price last confirmed 27 days ago

B+

Retailer 29

$3,737 CAD

$2,670 USD

View

Price last confirmed 8 days ago

Most Expensive

Brilliant Earth

12598441A · Oct 29

$6,480 CAD

$4,630 USD

View

29 more retailers have this diamond

Prices start from $463 CADSave up to $6,017 CAD

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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