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Cushion|Lab Grown|IGI

4.26ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804659469

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659469

Diamond specifications and retailer prices

From $6,505 CAD
$4,648 USD
As of October 29, 2026
Save $24,804 CAD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $31,309 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.26ct lab-grown cushion diamond

This 4.26ct 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 LG804659469 or 804659469. Listed at 11 retailers as of October 29, 2026, with prices from $6,505 to $31,309, a $24,804 spread on the same certified stone. Brilliant Earth lists it at $31,309. 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

4.26
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659469
Dimensions10.46 × 8.75 × 5.88 mm
L/W Ratio1.20
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
Top View
10.46 mm8.75 mm4.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659469
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
A
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 29
Current: $31,309 CAD|Low: $6,505 CAD|High: $31,309 CAD|Avg: $15,801 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$6,505 CAD
Retailer 9$6,599 CAD
Retailer 5$8,975 CAD
Retailer 2$9,217 CAD
Retailer 11$11,400 CAD
Retailer 6$11,682 CAD
Retailer 3$11,995 CAD
Retailer 7$15,784 CAD
Retailer 10$20,463 CAD
Retailer 4$25,357 CAD
Brilliant Earth$31,309 CAD

40 data points across 11 retailers

11 retailers$6,505 CAD to $31,309 CAD

A
Cheapest Retailer
-
$6,505 CAD
$4,648 USD
A
Retailer 2
-
$6,599 CAD
$4,715 USD
View
A
Retailer 3
-
$8,975 CAD
HK$50,100 HKD
View
A
Retailer 4
-
$9,217 CAD
£5,186 GBP
View
Retailer 5
-
$11,400 CAD
$8,145 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$11,682 CAD
€7,949 EUR
View
B+
Retailer 7
-
$11,995 CAD
$8,570 USD
View
B+
Retailer 8
-
$15,784 CAD
£8,880 GBP
View
B+
Retailer 9
-
$20,463 CAD
$14,620 USD
View
B+
Retailer 10
-
$25,357 CAD
$18,117 USD
View
Most Expensive
B
Brilliant Earth
20869191Y · Oct 29
$31,309 CAD
$22,370 USD
View
10 more retailers have this diamond
Prices start from $6,505 CADSave up to $24,804 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
4.26ct Cushion
$6,505 CAD