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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG640443023

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

Certificate IGI LG640443023

Diamond specifications and retailer prices

From $351 CAD
$251 USD
As of October 27, 2026
Save $1,546 CAD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,898 CAD at Reve Diamonds · As of October 28, 2026
View at Reve 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG640443023 or 640443023. Listed at 18 retailers as of October 27, 2026, with prices from $351 to $1,898, a $1,546 spread on the same certified stone. Reve Diamonds lists it at $1,898. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640443023
Dimensions8.00 × 5.35 × 3.56 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.00 mm5.35 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640443023
Side View
Table 63.0%Crown 38.5°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 66.5%

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 27
Current: $829 CAD|Low: $378 CAD|High: $1,898 CAD|Avg: $1,023 CAD|+9.2%
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
Reve Diamonds
October 29, 2026
Retailer 6$392 CAD
Retailer 13$435 CAD
Retailer 10$658 CAD
Retailer 3$697 CAD
Retailer 2$731 CAD
Retailer 8$748 CAD
Retailer 4$791 CAD
Retailer 1$829 CAD
Retailer 9$1,060 CAD
Retailer 12$1,288 CAD
Retailer 11$1,338 CAD
Retailer 14$1,400 CAD
Retailer 5$1,472 CAD
Retailer 7$1,754 CAD
Reve Diamonds$1,898 CAD

42 data points across 15 retailers

18 retailers$351 CAD to $1,898 CAD

A
Cheapest Retailer
-
$351 CAD
$251 USD
A
Retailer 2
-
$392 CAD
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$407 CAD
$291 USD
View
A
Retailer 4
-
$435 CAD
$311 USD
View
A
Retailer 5
-
$435 CAD
$311 USD
View
A
Retailer 6
-
$658 CAD
$470 USD
View
B+
Retailer 7
-
$697 CAD
$498 USD
View
B+
Retailer 8
-
$731 CAD
$522 USD
View
B+
Retailer 9
-
$748 CAD
ZAR 8,633 ZAR
View
B+
Retailer 10
-
$791 CAD
$565 USD
View
B+
Retailer 11
-
$829 CAD
£466 GBP
View
B+
Retailer 12
-
$1,060 CAD
A$1,165 AUD
View
B
Retailer 13
-
$1,288 CAD
$920 USD
View
B
Retailer 14
-
$1,338 CAD
$956 USD
View
B
Retailer 15
-
$1,400 CAD
$1,000 USD
View
B
Retailer 16
-
$1,472 CAD
$1,052 USD
View
B
Retailer 17
-
$1,754 CAD
£987 GBP
View
Most Expensive
B
Reve Diamonds
11AB9F759 · Oct 28
$1,898 CAD
$1,356 USD
View
17 more retailers have this diamond
Prices start from $351 CADSave up to $1,546 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
$351 CAD