Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG831645783

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG831645783

Diamond specifications and retailer prices

From $309 CAD
$221 USD
As of October 30, 2026
Save $1,591 CAD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,900 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant 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 LG831645783 or 831645783. Listed at 20 retailers as of October 29, 2026, with prices from $309 to $1,900, a $1,591 spread on the same certified stone. Brilliant Earth lists it at $1,900. 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 angle40.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831645783
Dimensions7.80 × 5.38 × 3.62 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm5.38 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831645783
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.3%

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: $1,900 CAD|Low: $305 CAD|High: $1,984 CAD|Avg: $967 CAD|-4.2%
Brilliant Earth
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
Retailer 20
October 30, 2026
Retailer 7$309 CAD
Retailer 11$346 CAD
Retailer 16$359 CAD
Retailer 4$383 CAD
Retailer 6$383 CAD
Retailer 3$517 CAD
Retailer 14$658 CAD
Retailer 19$664 CAD
Retailer 2$713 CAD
Retailer 20$865 CAD
Retailer 15$937 CAD
Retailer 9$1,232 CAD
Retailer 17$1,236 CAD
Retailer 18$1,257 CAD
Retailer 12$1,268 CAD
Retailer 10$1,306 CAD
Retailer 8$1,320 CAD
Retailer 13$1,543 CAD
Retailer 5$1,762 CAD
Brilliant Earth$1,900 CAD

37 data points across 20 retailers

20 retailers$309 CAD to $1,900 CAD

A
Cheapest Retailer
-
$309 CAD
$221 USD
A
Retailer 2
-
$346 CAD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$359 CAD
$257 USD
View
A
Retailer 4
-
$383 CAD
$274 USD
View
A
Retailer 5
-
$383 CAD
$274 USD
View
B+
Retailer 6
-
$517 CAD
$370 USD
View
A
Retailer 7
-
$658 CAD
ZAR 7,614 ZAR
View
Retailer 8
-
$664 CAD
€453 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$713 CAD
£402 GBP
View
B+
Retailer 10
-
$865 CAD
$619 USD
View
B+
Retailer 11
-
$937 CAD
A$1,032 AUD
View
B+
Retailer 12
-
$1,232 CAD
$882 USD
View
B+
Retailer 13
-
$1,236 CAD
$885 USD
View
Retailer 14
-
$1,257 CAD
$900 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$1,268 CAD
A$1,397 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
-
$1,306 CAD
$935 USD
View
B+
Retailer 17
-
$1,320 CAD
$945 USD
View
B
Retailer 18
-
$1,543 CAD
£870 GBP
View
B
Retailer 19
-
$1,762 CAD
$1,261 USD
View
Most Expensive
B
Brilliant Earth
21123272A · Oct 29
$1,900 CAD
$1,360 USD
View
19 more retailers have this diamond
Prices start from $309 CADSave up to $1,591 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 Radiant
$309 CAD