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Cushion|Lab Grown|IGI

4.05ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG660415012

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG660415012

Diamond specifications and retailer prices

From $2,542 CAD
$1,820 USD
As of October 31, 2026
Save $12,139 CAD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $16,805 CAD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG660415012 or 660415012. Listed at 20 retailers as of October 31, 2026, with a 477% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.05
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660415012
Dimensions10.44 × 8.68 × 5.72 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
10.44 mm8.68 mm4.05 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660415012
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 65.9%

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 31
Current: $16,805 CAD|Low: $2,390 CAD|High: $16,805 CAD|Avg: $6,360 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
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Retailer 19
Retailer 20
October 31, 2026
Retailer 16$2,542 CAD
Retailer 14$2,741 CAD
Retailer 7$2,825 CAD
Retailer 10$3,413 CAD
Retailer 4$3,415 CAD
Retailer 15$3,875 CAD
Retailer 3$4,100 CAD
Retailer 2$4,315 CAD
Retailer 9$5,663 CAD
Retailer 17$5,819 CAD
Retailer 19$5,866 CAD
Retailer 5$7,094 CAD
Retailer 11$7,154 CAD
Retailer 20$7,620 CAD
Retailer 18$7,848 CAD
Retailer 13$8,939 CAD
Retailer 8$9,613 CAD
Retailer 12$9,864 CAD
Retailer 6$14,681 CAD
Brilliant Earth$16,805 CAD

35 data points across 20 retailers

20 retailers$2,542 CAD to $14,681 CAD

A
Cheapest Retailer
-
$2,542 CAD
$1,820 USD
A
Retailer 2
-
$2,741 CAD
$1,962 USD
View
Final sale: no returns
A
Retailer 3
-
$2,825 CAD
$2,022 USD
View
A
Retailer 4
-
$3,413 CAD
$2,443 USD
View
A
Retailer 5
-
$3,415 CAD
HK$19,100 HKD
View
A
Retailer 6
-
$3,875 CAD
£2,184 GBP
View
B+
Retailer 7
-
$4,100 CAD
$2,935 USD
View
A
Retailer 8
-
$4,315 CAD
€2,942 EUR
View
B+
Retailer 9
-
$5,663 CAD
£3,192 GBP
View
B+
Retailer 10
-
$5,819 CAD
ZAR 67,292 ZAR
View
Retailer 11
-
$5,866 CAD
A$6,460 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$7,094 CAD
$5,079 USD
View
B
Retailer 13
-
$7,154 CAD
$5,122 USD
View
Retailer 14
-
$7,620 CAD
$5,455 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
$7,848 CAD
£4,424 GBP
View
B
Retailer 16
-
$8,939 CAD
A$9,845 AUD
View
B
Retailer 17
-
$9,613 CAD
$6,882 USD
View
B
Retailer 18
-
$9,864 CAD
SGD 9,542 SGD
View
B
Retailer 19
-
$14,681 CAD
$10,510 USD
View
Most Expensive
Brilliant Earth
12545308Y · Oct 21
$16,805 CAD
$12,030 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from $2,542 CADSave up to $12,139 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
4.05ct Cushion
$2,542 CAD