Radiant|Lab Grown|IGI

5.18ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG744514803

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

Certificate IGI LG744514803

Diamond specifications and retailer prices

From $11,932 CAD

$8,525 USD

As of October 27, 2026

Save $28,097 CAD (70%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: $40,029 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 5.18ct lab-grown radiant diamond

This 5.18ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744514803 or 744514803. Listed at 15 retailers as of October 27, 2026, with prices from $11,932 to $40,029, a $28,097 spread on the same certified stone. Brilliant Earth lists it at $40,029. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.7°

Pavilion angle37.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG744514803

Dimensions11.90 × 8.56 × 6.05 mm

L/W Ratio1.39

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 LG744514803

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: $40,029 CAD|Low: $11,932 CAD|High: $87,237 CAD|Avg: $26,006 CAD|-3.0%

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

October 29, 2026

Retailer 9$11,932 CAD

Retailer 11$12,119 CAD

Retailer 6$12,381 CAD

Retailer 3$12,409 CAD

Retailer 14$13,716 CAD

Retailer 12$15,396 CAD

Retailer 10$16,014 CAD

Retailer 8$16,711 CAD

Retailer 15$17,181 CAD

Retailer 7$17,233 CAD

Retailer 5$26,901 CAD

Retailer 2$27,416 CAD

Retailer 4$38,534 CAD

Brilliant Earth$40,029 CAD

Retailer 13$74,459 CAD

38 data points across 15 retailers

15 retailers$11,932 CAD to $40,029 CAD

Cheapest Retailer

$11,932 CAD

$8,525 USD

Retailer 2

$12,119 CAD

$8,659 USD

View

Retailer 3

$12,381 CAD

$8,846 USD

View

Retailer 4

$12,409 CAD

$8,866 USD

View

Retailer 5

$13,716 CAD

$9,800 USD

View

Retailer 6

$15,396 CAD

$11,000 USD

View

Retailer 7

$16,014 CAD

$11,442 USD

View

Retailer 8

$16,711 CAD

$11,940 USD

View

Retailer 9

$17,181 CAD

$12,276 USD

View

Retailer 10

$17,233 CAD

$12,313 USD

View

Final sale: no returns

B+

Retailer 11

$26,901 CAD

€18,305 EUR

View

B+

Retailer 12

$27,416 CAD

£15,424 GBP

View

B+

Retailer 13

$38,534 CAD

$27,532 USD

View

Most Expensive

Brilliant Earth

17398979Y · Oct 29

$40,029 CAD

$28,600 USD

View

13 more retailers have this diamond

Prices start from $11,932 CADSave up to $28,097 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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