Cushion|Lab Grown|IGI

4.05ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG771607368

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG771607368

Diamond specifications and retailer prices

From $6,114 CAD

£3,446 GBP

As of October 30, 2026

Save $20,029 CAD (77%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $26,142 CAD at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG771607368 or 771607368. Listed at 16 retailers as of October 30, 2026, with prices from $6,114 to $26,142, a $20,029 spread on the same certified stone. Taylor and Hart lists it at $26,142. 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

4.05

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.9°

Pavilion angle37.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG771607368

Dimensions10.67 × 8.17 × 5.52 mm

L/W Ratio1.31

Girdle conditionFaceted

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 LG771607368

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: Oct 30

Current: $6,114 CAD|Low: $6,093 CAD|High: $25,162 CAD|Avg: $13,097 CAD|-0.8%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 30, 2026

Retailer 1$6,114 CAD

Retailer 3$6,986 CAD

Retailer 9$7,318 CAD

Retailer 4$9,501 CAD

Retailer 10$11,320 CAD

Retailer 6$11,787 CAD

Retailer 7$15,234 CAD

Retailer 5$15,576 CAD

Retailer 8$16,033 CAD

Retailer 11$18,427 CAD

Retailer 2$25,162 CAD

39 data points across 11 retailers

16 retailers$6,114 CAD to $26,142 CAD

Cheapest Retailer

$6,114 CAD

£3,446 GBP

Retailer 2

$6,986 CAD

$5,001 USD

View

Retailer 3

$7,066 CAD

$5,058 USD

View

Final sale: no returns

Retailer 4

$7,318 CAD

$5,239 USD

View

Price last confirmed 15 days ago

Retailer 5

$7,376 CAD

$5,280 USD

View

Retailer 6

$8,757 CAD

$6,269 USD

View

Retailer 7

$9,501 CAD

£5,355 GBP

View

Retailer 8

$10,325 CAD

£5,820 GBP

View

B+

Retailer 9

$11,320 CAD

$8,104 USD

View

B+

Retailer 10

$11,787 CAD

€8,036 EUR

View

B+

Retailer 11

$15,234 CAD

£8,587 GBP

View

B+

Retailer 12

$15,576 CAD

ZAR 180,133 ZAR

View

Retailer 13

$16,033 CAD

A$17,658 AUD

View

Price last confirmed 9 days ago

B+

Retailer 14

$18,427 CAD

$13,191 USD

View

Retailer 15

$25,162 CAD

SGD 24,342 SGD

View

Most Expensive

Taylor and Hart

R8JQKCD · Oct 30

$26,142 CAD

$18,715 USD

View

15 more retailers have this diamond

Prices start from $6,114 CADSave up to $20,029 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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4.05ct Cushion

$6,114 CAD