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Cushion|Lab Grown|IGI

4.26ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG821638856

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821638856

Diamond specifications and retailer prices

From $6,284 CAD
$4,490 USD
As of October 29, 2026
Save $29,700 CAD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $35,984 CAD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG821638856 or 821638856. Listed at 9 retailers as of October 29, 2026, with prices from $6,284 to $35,984, a $29,700 spread on the same certified stone. Do Amore Diamonds lists it at $35,984. 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 angle34.9°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638856
Dimensions10.53 × 8.69 × 5.90 mm
L/W Ratio1.21
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
10.53 mm8.69 mm4.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638856
Side View
Table 59.0%Crown 34.9°Girdle: STK-THKPavilion 36.3°Culet: NoneDepth 67.9%

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 29
Current: $35,984 CAD|Low: $6,193 CAD|High: $47,940 CAD|Avg: $19,365 CAD|-2.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$6,284 CAD
Retailer 3$6,644 CAD
Retailer 7$7,005 CAD
Retailer 8$9,467 CAD
Retailer 4$11,569 CAD
Retailer 6$13,941 CAD
Retailer 9$14,601 CAD
Retailer 2$18,475 CAD
Do Amore Diamonds$35,984 CAD
Retailer 10$41,326 CAD

28 data points across 10 retailers

9 retailers$6,284 CAD to $35,984 CAD

A
Cheapest Retailer
-
$6,284 CAD
$4,490 USD
A
Retailer 2
-
$6,304 CAD
$4,504 USD
View
A
Retailer 3
-
$6,644 CAD
$4,747 USD
View
A
Retailer 4
-
$9,467 CAD
$6,764 USD
View
A
Retailer 5
-
$11,569 CAD
€7,872 EUR
View
B+
Retailer 6
-
$13,941 CAD
£7,843 GBP
View
Retailer 7
-
$14,601 CAD
$10,432 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$18,475 CAD
$13,200 USD
View
Most Expensive
B
Do Amore Diamonds
27-1D4304903 · Oct 30
$35,984 CAD
$25,710 USD
View
8 more retailers have this diamond
Prices start from $6,284 CADSave up to $29,700 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
$6,284 CAD