Radiant|Lab Grown|IGI

5.05ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG618466739

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

Certificate IGI LG618466739

Diamond specifications and retailer prices

From $669 CAD

$479 USD

As of October 30, 2026

Save $4,891 CAD (88%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $5,560 CAD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618466739 or 618466739. Listed at 16 retailers as of October 30, 2026, with prices from $669 to $5,560, a $4,891 spread on the same certified stone. Brilliant Earth lists it at $5,560. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.05

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.8°

Pavilion angle35°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618466739

Dimensions11.94 × 8.44 × 5.75 mm

L/W Ratio1.41

Culet sizePointed

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG618466739

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: $5,560 CAD|Low: $669 CAD|High: $5,560 CAD|Avg: $1,933 CAD

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

November 2, 2026

Retailer 3$669 CAD

Retailer 12$750 CAD

Retailer 6$830 CAD

Retailer 8$830 CAD

Retailer 16$873 CAD

Retailer 11$1,027 CAD

Retailer 7$1,294 CAD

Retailer 10$1,339 CAD

Retailer 2$1,378 CAD

Retailer 5$1,460 CAD

Retailer 15$1,784 CAD

Retailer 13$2,231 CAD

Retailer 4$2,668 CAD

Retailer 9$3,048 CAD

Retailer 14$4,316 CAD

Brilliant Earth$5,560 CAD

37 data points across 16 retailers

16 retailers$669 CAD to $5,560 CAD

Cheapest Retailer

$669 CAD

$479 USD

Retailer 2

$750 CAD

$537 USD

View

Retailer 3

$830 CAD

$594 USD

View

Retailer 4

$830 CAD

$594 USD

View

Price last confirmed 16 days ago

Retailer 5

$873 CAD

£492 GBP

View

Price last confirmed 16 days ago

Retailer 6

$1,027 CAD

$735 USD

View

B+

Retailer 7

$1,294 CAD

$926 USD

View

Retailer 8

$1,339 CAD

€913 EUR

View

Retailer 9

$1,378 CAD

£777 GBP

View

Retailer 10

$1,460 CAD

$1,045 USD

View

B+

Retailer 11

$1,784 CAD

$1,277 USD

View

B+

Retailer 12

$2,231 CAD

$1,597 USD

View

B+

Retailer 13

$2,668 CAD

$1,910 USD

View

Retailer 14

$3,048 CAD

£1,718 GBP

View

Retailer 15

$4,316 CAD

$3,090 USD

View

Most Expensive

Brilliant Earth

9039898A · Oct 31

$5,560 CAD

$3,980 USD

View

15 more retailers have this diamond

Prices start from $669 CADSave up to $4,891 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.

Similar diamonds

5.05ct Radiant

$669 CAD