Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG794641717

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

Certificate IGI LG794641717

Diamond specifications and retailer prices

From $348 CAD
$249 USD
As of October 31, 2026
Save $1,422 CAD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,221 CAD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG794641717 or 794641717. Listed at 17 retailers as of October 30, 2026, with a 409% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794641717
Dimensions6.35 × 6.31 × 4.12 mm
L/W Ratio1.01
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
6.35 mm6.31 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794641717
Side View
Table 63.0%Crown 33.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 65.3%

Caratlytics Score

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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 31
Current: $632 CAD|Low: $344 CAD|High: $1,770 CAD|Avg: $899 CAD|+0.9%
Retailer 1
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
October 31, 2026
Retailer 8$348 CAD
Retailer 7$381 CAD
Retailer 14$442 CAD
Retailer 1$632 CAD
Retailer 5$655 CAD
Retailer 12$658 CAD
Retailer 9$719 CAD
Retailer 11$904 CAD
Retailer 6$932 CAD
Retailer 10$1,035 CAD
Retailer 2$1,315 CAD
Retailer 3$1,458 CAD
Retailer 15$1,512 CAD
Retailer 4$1,536 CAD
Retailer 13$1,770 CAD

26 data points across 15 retailers

17 retailers$348 CAD to $1,770 CAD

A
Cheapest Retailer
-
$348 CAD
$249 USD
Final sale: no returns
A
Retailer 2
-
$381 CAD
$273 USD
View
A
Retailer 3
-
$442 CAD
£249 GBP
View
A
Retailer 4
-
$632 CAD
€431 EUR
View
A
Retailer 5
-
$655 CAD
ZAR 7,574 ZAR
View
A
Retailer 6
-
$658 CAD
$471 USD
View
A
Retailer 7
-
$719 CAD
£405 GBP
View
B+
Retailer 8
-
$904 CAD
$647 USD
View
A
Retailer 9
-
$932 CAD
A$1,026 AUD
View
B+
Retailer 10
-
$1,035 CAD
$741 USD
View
B+
Retailer 11
-
$1,315 CAD
$941 USD
View
B+
Retailer 12
-
$1,458 CAD
A$1,606 AUD
View
B
Retailer 13
-
$1,512 CAD
£852 GBP
View
B+
Retailer 14
-
$1,536 CAD
£866 GBP
View
Retailer 15
-
$1,707 CAD
$1,222 USD
View
Price last confirmed 111 days ago
B
Retailer 16
-
$1,770 CAD
$1,267 USD
View
Most Expensive
Brilliant Earth
19355098A · Oct 24
$2,221 CAD
$1,590 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from $348 CADSave up to $1,422 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
1.28ct Cushion
$348 CAD