Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG816617452

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG816617452

Diamond specifications and retailer prices

From $737 CAD

£415 GBP

As of November 1, 2026

Save $5,298 CAD (88%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $6,035 CAD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816617452 or 816617452. Listed at 14 retailers as of October 31, 2026, with prices from $737 to $6,035, a $5,298 spread on the same certified stone. Brilliant Earth lists it at $6,035. 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

4.09

Carat

Color

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle45.7°

Pavilion angle30.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG816617452

Dimensions9.06 × 8.52 × 5.71 mm

L/W Ratio1.06

Girdle conditionFaceted

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 LG816617452

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1

Current: $6,035 CAD|Low: $737 CAD|High: $10,407 CAD|Avg: $2,897 CAD|-42.0%

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

November 1, 2026

Retailer 2$737 CAD

Retailer 11$1,076 CAD

Retailer 3$1,185 CAD

Retailer 8$1,344 CAD

Retailer 12$1,440 CAD

Retailer 7$1,470 CAD

Retailer 10$1,769 CAD

Retailer 14$2,203 CAD

Retailer 13$2,794 CAD

Retailer 4$2,872 CAD

Retailer 9$3,083 CAD

Retailer 5$3,734 CAD

Retailer 6$4,309 CAD

Brilliant Earth$6,035 CAD

41 data points across 14 retailers

14 retailers$737 CAD to $6,035 CAD

Cheapest Retailer

$737 CAD

£415 GBP

Retailer 2

$1,076 CAD

$770 USD

View

B+

Retailer 3

$1,185 CAD

$848 USD

View

Retailer 4

$1,344 CAD

€916 EUR

View

Retailer 5

$1,440 CAD

$1,031 USD

View

Retailer 6

$1,470 CAD

£829 GBP

View

Retailer 7

$1,769 CAD

A$1,948 AUD

View

Retailer 8

$2,203 CAD

$1,577 USD

View

B+

Retailer 9

$2,794 CAD

SGD 2,703 SGD

View

B+

Retailer 10

$2,872 CAD

$2,056 USD

View

B+

Retailer 11

$3,083 CAD

$2,207 USD

View

B+

Retailer 12

$3,734 CAD

£2,105 GBP

View

Retailer 13

$4,309 CAD

$3,085 USD

View

Price last confirmed 25 days ago

Most Expensive

Brilliant Earth

22374626A · Oct 31

$6,035 CAD

$4,320 USD

View

13 more retailers have this diamond

Prices start from $737 CADSave up to $5,298 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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