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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811635657

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG811635657

Diamond specifications and retailer prices

From $5,690 CAD
$4,073 USD
As of October 29, 2026
Save $29,582 CAD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $35,272 CAD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown cushion diamond

This 4.18ct 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 LG811635657 or 811635657. Listed at 10 retailers as of October 29, 2026, with prices from $5,690 to $35,272, a $29,582 spread on the same certified stone. Do Amore Diamonds lists it at $35,272. 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

4.18
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635657
Dimensions9.22 × 9.20 × 6.22 mm
L/W Ratio1.00
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
9.22 mm9.20 mm4.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635657
Side View
Table 58.0%Crown 37.3°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
A+
Exceptional
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: $35,272 CAD|Low: $5,690 CAD|High: $46,950 CAD|Avg: $19,797 CAD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$5,690 CAD
Retailer 7$6,160 CAD
Retailer 5$6,409 CAD
Retailer 9$9,281 CAD
Retailer 6$11,329 CAD
Retailer 11$11,406 CAD
Retailer 8$14,138 CAD
Retailer 2$18,090 CAD
Retailer 4$18,864 CAD
Retailer 12$27,772 CAD
Do Amore Diamonds$35,272 CAD
Retailer 3$46,950 CAD

27 data points across 12 retailers

10 retailers$5,690 CAD to $35,272 CAD

A+
Cheapest Retailer
-
$5,690 CAD
$4,073 USD
A
Retailer 2
-
$6,160 CAD
$4,410 USD
View
A
Retailer 3
-
$6,409 CAD
$4,588 USD
View
A
Retailer 4
-
$9,281 CAD
$6,644 USD
View
A
Retailer 5
-
$11,329 CAD
€7,724 EUR
View
Retailer 6
-
$11,406 CAD
$8,165 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$14,138 CAD
£7,969 GBP
View
B+
Retailer 8
-
$18,090 CAD
$12,950 USD
View
B
Retailer 9
-
$27,772 CAD
$19,881 USD
View
Most Expensive
B
Do Amore Diamonds
27-C916D5FE2 · Oct 30
$35,272 CAD
$25,250 USD
View
9 more retailers have this diamond
Prices start from $5,690 CADSave up to $29,582 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+
4.18ct Cushion
$5,690 CAD