Cushion|Lab Grown|IGI

4.20ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664245

Certificate IGI LG846664245

Diamond specifications and retailer prices

From $8,808 CAD
$6,293 USD
As of October 30, 2026
Save $30,815 CAD (78%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $39,623 CAD at With Clarity · As of October 28, 2026
View at With Clarity

About this 4.2ct lab-grown cushion diamond

This 4.2ct 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 LG846664245 or 846664245. Listed at 4 retailers as of October 28, 2026, with prices from $8,808 to $39,623, a $30,815 spread on the same certified stone. With Clarity lists it at $39,623. 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

4.20
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664245
Dimensions11.14 × 8.37 × 5.66 mm
L/W Ratio1.33
Top View
11.14 mm8.37 mm4.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664245
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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 30
Current: $8,808 CAD|Low: $8,808 CAD|High: $40,744 CAD|Avg: $22,012 CAD|-0.7%
Retailer 1
Retailer 2
Retailer 3
With Clarity
October 30, 2026
Retailer 1$8,808 CAD
Retailer 3$13,184 CAD
Retailer 2$14,266 CAD
With Clarity$39,623 CAD

5 data points across 4 retailers

4 retailers$8,808 CAD to $39,623 CAD

A
Cheapest Retailer
-
$8,808 CAD
$6,293 USD
B+
Retailer 2
-
$13,184 CAD
€8,971 EUR
View
B+
Retailer 3
-
$14,266 CAD
£8,026 GBP
View
Most Expensive
B
With Clarity
846664245 · Oct 28
$39,623 CAD
$28,310 USD
View
3 more retailers have this diamond
Prices start from $8,808 CADSave up to $30,815 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
4.20ct Cushion
$8,808 CAD