CaratHunter
Plans
Cushion|Lab Grown|IGI

1.28ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG778641252

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

Certificate IGI LG778641252

Diamond specifications and retailer prices

From $1,774 CAD
$1,270 USD
As of October 29, 2026
3 retailers carry this diamond
Most expensive: $1,774 CAD at Brilliant Earth
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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778641252 or 778641252. Listed at 3 retailers as of October 29, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778641252
Dimensions6.25 × 6.23 × 4.04 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
6.25 mm6.23 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778641252
Side View
Table 61.0%Crown 32.8°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,774 CAD|Low: $556 CAD|High: $1,774 CAD|Avg: $1,033 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 5, 2026
Retailer 7$556 CAD
Retailer 4$637 CAD
Retailer 6$639 CAD
Retailer 9$703 CAD
Retailer 11$828 CAD
Retailer 8$951 CAD
Retailer 10$1,147 CAD
Retailer 3$1,287 CAD
Retailer 2$1,362 CAD
Retailer 5$1,469 CAD
Brilliant Earth$1,774 CAD

2 data points across 11 retailers

3 retailers

Retailer 1
-
$1,362 CAD
$975 USD
Price last confirmed 16 days ago
Retailer 2
-
$1,362 CAD
$975 USD
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
20044684A · Oct 29
$1,774 CAD
$1,270 USD
View
2 more retailers have this diamond

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.

B
1.28ct Cushion
$1,774 CAD