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Cushion|Lab Grown|IGI

4.10ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG720556118

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720556118

Diamond specifications and retailer prices

From $4,308 CAD
$3,084 USD
As of October 29, 2026
Save $23,043 CAD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $27,351 CAD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.1ct lab-grown cushion diamond

This 4.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720556118 or 720556118. Listed at 21 retailers as of October 24, 2026, with prices from $4,308 to $27,351, a $23,043 spread on the same certified stone. Brilliant Earth lists it at $27,351. 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

4.10
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720556118
Dimensions10.53 × 8.80 × 5.68 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
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 mm8.80 mm4.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720556118
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 64.5%

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: $16,134 CAD|Low: $4,308 CAD|High: $28,189 CAD|Avg: $11,351 CAD|-41.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 3$4,308 CAD
Retailer 16$4,532 CAD
Retailer 15$4,687 CAD
Retailer 18$5,757 CAD
Retailer 19$5,811 CAD
Retailer 11$5,835 CAD
Retailer 2$6,663 CAD
Retailer 6$7,654 CAD
Retailer 8$8,494 CAD
Retailer 13$9,195 CAD
Retailer 12$10,486 CAD
Retailer 7$10,573 CAD
Retailer 9$11,903 CAD
Retailer 4$12,291 CAD
Retailer 14$12,555 CAD
Brilliant Earth$16,134 CAD
Retailer 5$16,827 CAD
Retailer 10$17,158 CAD
Retailer 17$26,471 CAD

36 data points across 19 retailers

21 retailers$4,308 CAD to $27,351 CAD

A
Cheapest Retailer
-
$4,308 CAD
$3,084 USD
Final sale: no returns
A
Retailer 2
-
$4,532 CAD
$3,244 USD
View
A
Retailer 3
-
$4,687 CAD
$3,355 USD
View
A
Retailer 4
-
$5,757 CAD
$4,121 USD
View
A
Retailer 5
-
$5,811 CAD
HK$32,500 HKD
View
Retailer 6
-
$5,835 CAD
$4,177 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
$6,663 CAD
£3,756 GBP
View
Retailer 8
-
$7,654 CAD
$5,479 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$8,494 CAD
£4,788 GBP
View
A
Retailer 10
-
$9,195 CAD
€6,269 EUR
View
A
Retailer 11
-
$10,486 CAD
ZAR 121,270 ZAR
View
Retailer 12
-
$10,573 CAD
A$11,644 AUD
View
Price last confirmed 7 days ago
A
Retailer 13
-
$11,903 CAD
$8,521 USD
View
B+
Retailer 14
-
$12,291 CAD
$8,799 USD
View
B+
Retailer 15
-
$12,555 CAD
£7,077 GBP
View
Retailer 16
-
$12,862 CAD
£7,250 GBP
View
Price last confirmed 21 days ago
B+
Retailer 17
-
$16,134 CAD
$11,550 USD
View
B+
Retailer 18
-
$16,827 CAD
SGD 16,278 SGD
View
B+
Retailer 19
-
$17,158 CAD
$12,283 USD
View
B
Retailer 20
-
$26,471 CAD
$18,950 USD
View
Most Expensive
B
Brilliant Earth
14890425A · Oct 24
$27,351 CAD
$19,580 USD
View
20 more retailers have this diamond
Prices start from $4,308 CADSave up to $23,043 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
4.10ct Cushion
$4,308 CAD