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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

GD • D/FL • IGI LG816625974

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816625974

Diamond specifications and retailer prices

From $5,653 CAD
$4,047 USD
As of October 30, 2026
Save $29,618 CAD (84%) vs most expensive(unlock to see where)
9 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 standard cut grade and certified by IGI LG816625974 or 816625974. Listed at 9 retailers as of October 30, 2026, with prices from $5,653 to $35,272, a $29,618 spread on the same certified stone. Do Amore Diamonds lists it at $35,272. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.18
Carat
D
Color
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816625974
Dimensions10.12 × 8.46 × 6.18 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
10.12 mm8.46 mm4.18 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816625974
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 39.5°Culet: NoneDepth 73.0%

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: $35,272 CAD|Low: $5,653 CAD|High: $45,176 CAD|Avg: $15,918 CAD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$5,653 CAD
Retailer 6$6,160 CAD
Retailer 4$6,409 CAD
Retailer 8$9,281 CAD
Retailer 5$11,329 CAD
Retailer 9$11,406 CAD
Retailer 7$14,138 CAD
Retailer 3$18,090 CAD
Do Amore Diamonds$35,272 CAD

27 data points across 9 retailers

9 retailers$5,653 CAD to $35,272 CAD

A
Cheapest Retailer
-
$5,653 CAD
$4,047 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
B+
Retailer 5
-
$11,329 CAD
€7,724 EUR
View
Retailer 6
-
$11,406 CAD
$8,165 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$14,138 CAD
£7,969 GBP
View
B
Retailer 8
-
$18,090 CAD
$12,950 USD
View
Most Expensive
B
Do Amore Diamonds
27-E8ED55DB1 · Oct 30
$35,272 CAD
$25,250 USD
View
8 more retailers have this diamond
Prices start from $5,653 CADSave up to $29,618 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
$5,653 CAD