Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG804659510

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659510

Diamond specifications and retailer prices

From $6,177 CAD

$4,422 USD

As of October 29, 2026

Save $19,557 CAD (76%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $25,734 CAD at With Clarity · As of October 30, 2026

View at With Clarity

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659510 or 804659510. Listed at 14 retailers as of October 29, 2026, with prices from $6,177 to $25,734, a $19,557 spread on the same certified stone. With Clarity lists it at $25,734. 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

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.3°

Pavilion angle34.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG804659510

Dimensions10.68 × 8.66 × 5.51 mm

L/W Ratio1.23

Girdle conditionFaceted

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 LG804659510

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 29

Current: $15,492 CAD|Low: $6,177 CAD|High: $31,249 CAD|Avg: $13,825 CAD|-17.9%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

With Clarity

October 30, 2026

Retailer 11$6,177 CAD

Retailer 3$8,118 CAD

Retailer 13$8,516 CAD

Retailer 6$8,543 CAD

Retailer 2$9,971 CAD

Retailer 8$10,674 CAD

Retailer 10$10,945 CAD

Retailer 4$12,231 CAD

Retailer 7$13,844 CAD

Retailer 9$14,008 CAD

Retailer 1$15,492 CAD

Retailer 12$17,425 CAD

Retailer 5$23,086 CAD

With Clarity$25,734 CAD

41 data points across 14 retailers

14 retailers$6,177 CAD to $25,734 CAD

Cheapest Retailer

$6,177 CAD

$4,422 USD

Retailer 2

$8,118 CAD

HK$45,400 HKD

View

Retailer 3

$8,516 CAD

$6,096 USD

View

Retailer 4

$8,543 CAD

£4,816 GBP

View

Retailer 5

$9,971 CAD

$7,138 USD

View

Retailer 6

$10,674 CAD

€7,277 EUR

View

Retailer 7

$10,945 CAD

$7,835 USD

View

Price last confirmed 9 days ago

Retailer 8

$12,231 CAD

$8,756 USD

View

B+

Retailer 9

$13,844 CAD

ZAR 160,110 ZAR

View

B+

Retailer 10

$14,008 CAD

£7,896 GBP

View

B+

Retailer 11

$15,492 CAD

$11,090 USD

View

B+

Retailer 12

$17,425 CAD

$12,474 USD

View

B+

Retailer 13

$23,086 CAD

$16,527 USD

View

Most Expensive

With Clarity

804659510 · Oct 30

$25,734 CAD

$18,422 USD

View

13 more retailers have this diamond

Prices start from $6,177 CADSave up to $19,557 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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