Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800662995

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800662995

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 28, 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 LG800662995 or 800662995. 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
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800662995
Dimensions11.41 × 8.58 × 5.59 mm
L/W Ratio1.33
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.41 mm8.58 mm4.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800662995
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
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: $20,376 CAD|Low: $7,741 CAD|High: $47,704 CAD|Avg: $18,310 CAD|+1.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
With Clarity
October 29, 2026
Retailer 16$8,018 CAD
Retailer 6$8,912 CAD
Retailer 12$9,243 CAD
Retailer 4$9,453 CAD
Retailer 5$9,566 CAD
Retailer 19$9,573 CAD
Retailer 7$9,675 CAD
Retailer 13$11,951 CAD
Retailer 3$13,630 CAD
Retailer 14$15,125 CAD
Retailer 2$16,205 CAD
Retailer 15$19,584 CAD
Retailer 1$20,376 CAD
Retailer 17$21,435 CAD
Retailer 8$24,695 CAD
Retailer 9$25,813 CAD
Retailer 10$26,634 CAD
Retailer 18$28,159 CAD
Retailer 11$33,500 CAD
With Clarity$47,704 CAD

38 data points across 20 retailers

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

A
Cheapest Retailer
-
$8,018 CAD
$5,729 USD
A
Retailer 2
-
$8,912 CAD
View
A
Retailer 3
-
$9,243 CAD
$6,604 USD
View
Final sale: no returns
A
Retailer 4
-
$9,453 CAD
$6,754 USD
View
A
Retailer 5
-
$9,566 CAD
$6,835 USD
View
Retailer 6
-
$9,573 CAD
$6,840 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$9,675 CAD
$6,913 USD
View
A
Retailer 8
-
$11,951 CAD
£6,723 GBP
View
B+
Retailer 9
-
$13,630 CAD
£7,668 GBP
View
B+
Retailer 10
-
$15,125 CAD
€10,292 EUR
View
B+
Retailer 11
-
$16,205 CAD
$11,578 USD
View
B+
Retailer 12
-
$19,584 CAD
£11,018 GBP
View
B+
Retailer 13
-
$20,376 CAD
ZAR 235,196 ZAR
View
B
Retailer 14
-
$21,435 CAD
$15,315 USD
View
B
Retailer 15
-
$24,695 CAD
$17,644 USD
View
B+
Retailer 16
-
$25,813 CAD
$18,443 USD
View
B
Retailer 17
-
$26,634 CAD
$19,029 USD
View
B
Retailer 18
-
$28,159 CAD
$20,119 USD
View
B
Retailer 19
-
$33,500 CAD
$23,935 USD
View
Most Expensive
B
With Clarity
800662995 · Oct 28
$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.

A
4.23ct Cushion
$8,018 CAD