Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG771654551

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

Certificate IGI LG771654551

Diamond specifications and retailer prices

From $446 CAD

$319 USD

As of October 30, 2026

Save $5,896 CAD (93%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: $6,342 CAD at Brilliant Earth · As of October 24, 2026

View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct 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 LG771654551 or 771654551. Listed at 29 retailers as of October 24, 2026, with prices from $446 to $6,342, a $5,896 spread on the same certified stone. Brilliant Earth lists it at $6,342. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.4°

Pavilion angle34.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG771654551

Dimensions8.56 × 5.75 × 3.74 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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG771654551

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: $4,107 CAD|Low: $440 CAD|High: $6,342 CAD|Avg: $1,549 CAD|-35.2%

Brilliant Earth

Retailer 2

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October 30, 2026

Retailer 17$440 CAD

Retailer 8$446 CAD

Retailer 6$495 CAD

Retailer 10$495 CAD

Retailer 16$511 CAD

Retailer 13$579 CAD

Retailer 7$697 CAD

Retailer 24$712 CAD

Retailer 2$722 CAD

Retailer 25$862 CAD

Retailer 15$918 CAD

Retailer 23$939 CAD

Retailer 20$974 CAD

Retailer 5$1,180 CAD

Retailer 21$1,273 CAD

Retailer 3$1,520 CAD

Retailer 9$1,756 CAD

Retailer 19$1,820 CAD

Retailer 4$1,904 CAD

Retailer 14$2,031 CAD

Retailer 12$2,045 CAD

Retailer 18$2,129 CAD

Retailer 11$2,193 CAD

Retailer 22$3,443 CAD

Retailer 26$3,548 CAD

Brilliant Earth$4,107 CAD

25 data points across 26 retailers

29 retailers$446 CAD to $6,342 CAD

Retailer 1

$440 CAD

$315 USD

Price last confirmed 9 days ago

Retailer 2

$446 CAD

$319 USD

View

Final sale: no returns

Retailer 3

$495 CAD

$354 USD

View

Retailer 4

$495 CAD

$354 USD

View

Retailer 5

$511 CAD

$366 USD

View

Price last confirmed 10 days ago

Retailer 6

$579 CAD

£327 GBP

View

Retailer 7

$697 CAD

HK$3,900 HKD

View

Retailer 8

$712 CAD

$510 USD

View

Retailer 9

$722 CAD

$517 USD

View

Retailer 10

$862 CAD

$617 USD

View

Retailer 11

$918 CAD

€626 EUR

View

Price last confirmed 7 days ago

Retailer 12

$939 CAD

ZAR 10,856 ZAR

View

Retailer 13

$974 CAD

£549 GBP

View

Retailer 14

$1,180 CAD

$845 USD

View

Retailer 15

$1,273 CAD

A$1,402 AUD

View

Retailer 16

$1,520 CAD

$1,088 USD

View

B+

Retailer 17

$1,756 CAD

$1,257 USD

View

B+

Retailer 18

$1,820 CAD

$1,303 USD

View

B+

Retailer 19

$1,861 CAD

$1,332 USD

View

B+

Retailer 20

$1,904 CAD

$1,363 USD

View

B+

Retailer 21

$2,031 CAD

SGD 1,965 SGD

View

B+

Retailer 22

$2,045 CAD

$1,464 USD

View

Retailer 23

$2,129 CAD

£1,200 GBP

View

Price last confirmed 9 days ago

B+

Retailer 24

$2,193 CAD

£1,236 GBP

View

B+

Retailer 25

$3,443 CAD

$2,465 USD

View

Retailer 26

$3,548 CAD

$2,540 USD

View

Retailer 27

$3,974 CAD

£2,240 GBP

View

Retailer 28

$4,107 CAD

$2,940 USD

View

Most Expensive

Brilliant Earth

17479782A · Oct 24

$6,342 CAD

$4,540 USD

View

28 more retailers have this diamond

Prices start from $446 CADSave up to $5,896 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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