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Cushion|Lab Grown|IGI

4.05ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG729590156

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG729590156

Diamond specifications and retailer prices

From $3,115 CAD
$2,230 USD
As of October 31, 2026
Save $14,751 CAD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $17,866 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG729590156 or 729590156. Listed at 20 retailers as of October 31, 2026, with prices from $3,115 to $17,866, a $14,751 spread on the same certified stone. Do Amore Diamonds lists it at $17,866. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729590156
Dimensions8.69 × 8.69 × 5.73 mm
L/W Ratio1.00
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
8.69 mm8.69 mm4.05 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729590156
Side View
Table 62.0%Crown 34.9°Girdle: STK-THKPavilion 36°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: $17,866 CAD|Low: $2,908 CAD|High: $17,866 CAD|Avg: $7,246 CAD
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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 18$3,115 CAD
Retailer 6$3,319 CAD
Retailer 12$3,367 CAD
Retailer 4$3,506 CAD
Retailer 8$4,166 CAD
Retailer 13$4,576 CAD
Retailer 3$5,022 CAD
Retailer 2$5,299 CAD
Retailer 9$6,301 CAD
Retailer 14$7,079 CAD
Retailer 16$7,137 CAD
Retailer 17$7,620 CAD
Retailer 5$8,541 CAD
Retailer 10$8,712 CAD
Retailer 19$9,458 CAD
Retailer 15$9,550 CAD
Retailer 11$11,635 CAD
Retailer 7$12,032 CAD
Do Amore Diamonds$17,866 CAD

38 data points across 19 retailers

20 retailers$3,115 CAD to $17,866 CAD

A
Cheapest Retailer
-
$3,115 CAD
$2,230 USD
A
Retailer 2
-
$3,319 CAD
$2,376 USD
View
A
Retailer 3
-
$3,367 CAD
$2,410 USD
View
Final sale: no returns
A
Retailer 4
-
$3,506 CAD
$2,510 USD
View
B+
Retailer 5
-
$4,166 CAD
HK$23,300 HKD
View
B+
Retailer 6
-
$4,576 CAD
£2,579 GBP
View
Retailer 7
-
$4,656 CAD
£2,624 GBP
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$5,022 CAD
$3,595 USD
View
B+
Retailer 9
-
$5,299 CAD
€3,613 EUR
View
B+
Retailer 10
-
$6,301 CAD
£3,552 GBP
View
B+
Retailer 11
-
$7,079 CAD
ZAR 81,873 ZAR
View
Retailer 12
-
$7,137 CAD
A$7,860 AUD
View
Price last confirmed 9 days ago
Retailer 13
-
$7,620 CAD
$5,455 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
$8,541 CAD
$6,115 USD
View
B
Retailer 15
-
$8,712 CAD
$6,237 USD
View
Retailer 16
-
$9,458 CAD
A$10,417 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$9,550 CAD
£5,383 GBP
View
B
Retailer 18
-
$11,635 CAD
$8,329 USD
View
B
Retailer 19
-
$12,032 CAD
SGD 11,640 SGD
View
Most Expensive
B
Do Amore Diamonds
27-D298A4B97 · Oct 31
$17,866 CAD
$12,790 USD
View
19 more retailers have this diamond
Prices start from $3,115 CADSave up to $14,751 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
$3,115 CAD