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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG831687239

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831687239

Diamond specifications and retailer prices

From $334 CAD
$239 USD
As of October 30, 2026
Save $2,164 CAD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,498 CAD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

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 LG831687239 or 831687239. Listed at 16 retailers as of October 30, 2026, with prices from $334 to $2,498, a $2,164 spread on the same certified stone. Helzberg Diamonds lists it at $2,498. 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 angle34.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831687239
Dimensions7.72 × 5.53 × 3.71 mm
L/W Ratio1.40
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
7.72 mm5.53 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831687239
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 35.2°Culet: NoneDepth 67.1%

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 30
Current: $2,498 CAD|Low: $318 CAD|High: $2,498 CAD|Avg: $1,051 CAD
Helzberg 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
October 31, 2026
Retailer 15$334 CAD
Retailer 11$423 CAD
Retailer 2$628 CAD
Retailer 3$635 CAD
Retailer 16$636 CAD
Retailer 9$685 CAD
Retailer 13$712 CAD
Retailer 4$898 CAD
Retailer 5$904 CAD
Retailer 10$960 CAD
Retailer 6$1,210 CAD
Retailer 8$1,263 CAD
Retailer 14$1,404 CAD
Retailer 12$1,490 CAD
Retailer 7$1,830 CAD
Helzberg Diamonds$2,498 CAD

9 data points across 16 retailers

16 retailers$334 CAD to $2,498 CAD

A
Cheapest Retailer
-
$334 CAD
$239 USD
Final sale: no returns
A
Retailer 2
-
$423 CAD
£239 GBP
View
A
Retailer 3
-
$628 CAD
€428 EUR
View
A
Retailer 4
-
$635 CAD
ZAR 7,348 ZAR
View
A
Retailer 5
-
$636 CAD
$455 USD
View
A
Retailer 6
-
$685 CAD
£386 GBP
View
A
Retailer 7
-
$712 CAD
$510 USD
View
A
Retailer 8
-
$898 CAD
$643 USD
View
A
Retailer 9
-
$904 CAD
A$996 AUD
View
B+
Retailer 10
-
$960 CAD
$687 USD
View
B+
Retailer 11
-
$1,210 CAD
SGD 1,171 SGD
View
B+
Retailer 12
-
$1,263 CAD
$904 USD
View
B+
Retailer 13
-
$1,404 CAD
$1,005 USD
View
B+
Retailer 14
-
$1,490 CAD
£840 GBP
View
B
Retailer 15
-
$1,830 CAD
$1,310 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMONIJP · Oct 30
$2,498 CAD
$1,788 USD
View
15 more retailers have this diamond
Prices start from $334 CADSave up to $2,164 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
$334 CAD