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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG831640256

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

Certificate IGI LG831640256

Diamond specifications and retailer prices

From $249 CAD
$178 USD
As of October 30, 2026
Save $2,140 CAD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,389 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831640256 or 831640256. Listed at 14 retailers as of October 30, 2026, with prices from $249 to $2,389, a $2,140 spread on the same certified stone. Do Amore Diamonds lists it at $2,389. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831640256
Dimensions7.75 × 5.32 × 3.53 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm5.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831640256
Side View
Table 63.0%Crown 42.8°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.4%

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: $2,389 CAD|Low: $239 CAD|High: $2,389 CAD|Avg: $960 CAD|+7.5%
Do Amore 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
November 1, 2026
Retailer 14$249 CAD
Retailer 13$288 CAD
Retailer 15$483 CAD
Retailer 3$531 CAD
Retailer 5$546 CAD
Retailer 9$829 CAD
Retailer 8$894 CAD
Retailer 11$894 CAD
Retailer 10$969 CAD
Retailer 7$1,035 CAD
Retailer 12$1,045 CAD
Retailer 4$1,092 CAD
Retailer 6$1,389 CAD
Retailer 2$1,588 CAD
Do Amore Diamonds$2,389 CAD

26 data points across 15 retailers

14 retailers$249 CAD to $2,389 CAD

A
Cheapest Retailer
-
$249 CAD
$178 USD
A
Retailer 2
-
$288 CAD
$206 USD
View
A
Retailer 3
-
$483 CAD
HK$2,700 HKD
View
A
Retailer 4
-
$531 CAD
$380 USD
View
A
Retailer 5
-
$546 CAD
$391 USD
View
B+
Retailer 6
-
$829 CAD
A$913 AUD
View
B+
Retailer 7
-
$894 CAD
$640 USD
View
Retailer 8
-
$894 CAD
$640 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$969 CAD
A$1,067 AUD
View
B
Retailer 10
-
$1,045 CAD
$748 USD
View
B+
Retailer 11
-
$1,092 CAD
$782 USD
View
B
Retailer 12
-
$1,389 CAD
SGD 1,344 SGD
View
B
Retailer 13
-
$1,588 CAD
£895 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B6CB48D66 · Oct 31
$2,389 CAD
$1,710 USD
View
13 more retailers have this diamond
Prices start from $249 CADSave up to $2,140 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
$249 CAD