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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG645412281

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG645412281

Diamond specifications and retailer prices

From $360 CAD
$258 USD
As of October 30, 2026
Save $1,442 CAD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,802 CAD at Reve Diamonds · As of October 30, 2026
View at Reve 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 VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG645412281 or 645412281. Listed at 16 retailers as of October 30, 2026, with prices from $360 to $1,802, a $1,442 spread on the same certified stone. Reve Diamonds lists it at $1,802. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645412281
Dimensions6.24 × 6.22 × 4.22 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.24 mm6.22 mm1.28 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645412281
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40°Culet: NoneDepth 67.8%

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 30
Current: $746 CAD|Low: $324 CAD|High: $1,914 CAD|Avg: $961 CAD|+17.7%
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
Reve Diamonds
October 31, 2026
Retailer 5$360 CAD
Retailer 14$400 CAD
Retailer 15$535 CAD
Retailer 9$617 CAD
Retailer 6$676 CAD
Retailer 12$685 CAD
Retailer 3$729 CAD
Retailer 1$746 CAD
Retailer 2$844 CAD
Retailer 13$972 CAD
Retailer 11$1,013 CAD
Retailer 7$1,109 CAD
Retailer 4$1,355 CAD
Retailer 8$1,578 CAD
Retailer 10$1,607 CAD
Reve Diamonds$1,802 CAD

39 data points across 16 retailers

16 retailers$360 CAD to $1,802 CAD

A
Cheapest Retailer
-
$360 CAD
$258 USD
Final sale: no returns
A
Retailer 2
-
$400 CAD
$286 USD
View
Retailer 3
-
$535 CAD
£302 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$617 CAD
€421 EUR
View
B+
Retailer 5
-
$676 CAD
$484 USD
View
B+
Retailer 6
-
$685 CAD
ZAR 7,924 ZAR
View
B+
Retailer 7
-
$729 CAD
$522 USD
View
B+
Retailer 8
-
$746 CAD
£421 GBP
View
B+
Retailer 9
-
$844 CAD
$604 USD
View
B+
Retailer 10
-
$972 CAD
A$1,071 AUD
View
B
Retailer 11
-
$1,013 CAD
$725 USD
View
B
Retailer 12
-
$1,109 CAD
$794 USD
View
B
Retailer 13
-
$1,355 CAD
$970 USD
View
B
Retailer 14
-
$1,578 CAD
$1,130 USD
View
B
Retailer 15
-
$1,607 CAD
£906 GBP
View
Most Expensive
B
Reve Diamonds
E3A5C0318 · Oct 30
$1,802 CAD
$1,290 USD
View
15 more retailers have this diamond
Prices start from $360 CADSave up to $1,442 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
$360 CAD