Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG826639385

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826639385

Diamond specifications and retailer prices

From $8,018 CAD

$5,729 USD

As of October 26, 2026

Save $40,608 CAD (84%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $48,626 CAD at With Clarity · As of October 30, 2026

View at With Clarity

About this 4.23ct lab-grown cushion diamond

This 4.23ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG826639385 or 826639385. Listed at 20 retailers as of October 26, 2026, with prices from $8,018 to $48,626, a $40,608 spread on the same certified stone. With Clarity lists it at $48,626. 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

4.23

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35°

Pavilion angle38.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG826639385

Dimensions10.83 × 8.60 × 5.67 mm

L/W Ratio1.26

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG826639385

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 26

Current: $11,987 CAD|Low: $7,741 CAD|High: $31,099 CAD|Avg: $16,000 CAD|-0.0%

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

October 30, 2026

Retailer 10$8,018 CAD

Retailer 7$9,243 CAD

Retailer 5$9,453 CAD

Retailer 2$9,573 CAD

Retailer 1$11,987 CAD

Retailer 3$13,630 CAD

Retailer 8$15,125 CAD

Retailer 12$16,205 CAD

Retailer 9$19,584 CAD

Retailer 6$20,376 CAD

Retailer 11$21,411 CAD

Retailer 4$24,695 CAD

Retailer 13$31,099 CAD

42 data points across 13 retailers

20 retailers$8,018 CAD to $48,626 CAD

Cheapest Retailer

$8,018 CAD

$5,729 USD

Retailer 2

$8,912 CAD

View

Retailer 3

$9,243 CAD

$6,604 USD

View

Final sale: no returns

Retailer 4

$9,453 CAD

$6,754 USD

View

Retailer 5

$9,566 CAD

$6,835 USD

View

Retailer 6

$9,573 CAD

$6,840 USD

View

Price last confirmed 13 days ago

Retailer 7

$11,987 CAD

£6,744 GBP

View

B+

Retailer 8

$13,630 CAD

£7,668 GBP

View

B+

Retailer 9

$15,125 CAD

€10,292 EUR

View

B+

Retailer 10

$16,205 CAD

$11,578 USD

View

B+

Retailer 11

$19,584 CAD

£11,018 GBP

View

B+

Retailer 12

$20,376 CAD

ZAR 235,196 ZAR

View

Retailer 13

$21,411 CAD

$15,298 USD

View

Retailer 14

$24,695 CAD

$17,644 USD

View

Retailer 15

$25,813 CAD

$18,443 USD

View

Retailer 16

$26,634 CAD

$19,029 USD

View

Retailer 17

$28,159 CAD

$20,119 USD

View

Retailer 18

$31,099 CAD

$22,220 USD

View

Retailer 19

$33,500 CAD

$23,935 USD

View

Most Expensive

With Clarity

826639385 · Oct 30

$48,626 CAD

$34,743 USD

View

19 more retailers have this diamond

Prices start from $8,018 CADSave up to $40,608 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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