Radiant|Lab Grown|IGI

15.09ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG758559978

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

Certificate IGI LG758559978

Diamond specifications and retailer prices

From $3,158 CAD

£1,780 GBP

As of October 30, 2026

Save $18,019 CAD (85%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: $21,177 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 15.09ct lab-grown radiant diamond

This 15.09ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG758559978 or 758559978. Listed at 15 retailers as of October 29, 2026, with prices from $3,158 to $21,177, a $18,019 spread on the same certified stone. Brilliant Earth lists it at $21,177. 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

15.09

Carat

Color

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle23.9°

Pavilion angle32.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG758559978

Dimensions12.40 × 12.40 × 7.95 mm

L/W Ratio1.00

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG758559978

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: $21,177 CAD|Low: $3,152 CAD|High: $21,834 CAD|Avg: $10,413 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 31, 2026

Retailer 10$3,158 CAD

Retailer 3$3,784 CAD

Retailer 12$4,715 CAD

Retailer 9$5,336 CAD

Retailer 8$5,400 CAD

Retailer 5$5,653 CAD

Retailer 7$5,920 CAD

Retailer 11$6,069 CAD

Retailer 2$6,262 CAD

Retailer 4$9,045 CAD

Retailer 14$11,023 CAD

Retailer 15$13,685 CAD

Retailer 6$15,231 CAD

Retailer 13$19,969 CAD

Brilliant Earth$21,177 CAD

26 data points across 15 retailers

15 retailers$3,158 CAD to $21,177 CAD

Cheapest Retailer

$3,158 CAD

£1,780 GBP

Retailer 2

$3,784 CAD

$2,709 USD

View

Final sale: no returns

Retailer 3

$4,715 CAD

$3,375 USD

View

Retailer 4

$5,336 CAD

$3,820 USD

View

Retailer 5

$5,400 CAD

£3,044 GBP

View

Retailer 6

$5,653 CAD

$4,047 USD

View

B+

Retailer 7

$5,920 CAD

$4,238 USD

View

Retailer 8

$6,069 CAD

ZAR 70,188 ZAR

View

Retailer 9

$6,262 CAD

€4,269 EUR

View

Retailer 10

$9,045 CAD

$6,475 USD

View

Price last confirmed 14 days ago

B+

Retailer 11

$11,023 CAD

$7,891 USD

View

Retailer 12

$13,685 CAD

$9,797 USD

View

Retailer 13

$15,231 CAD

A$16,775 AUD

View

Price last confirmed 24 days ago

Retailer 14

$19,969 CAD

$14,295 USD

View

Most Expensive

Brilliant Earth

18212470A · Oct 29

$21,177 CAD

$15,160 USD

View

14 more retailers have this diamond

Prices start from $3,158 CADSave up to $18,019 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

15.09ct Radiant

$3,158 CAD