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Radiant|Lab Grown|IGI

1.28ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG732507011

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

Certificate IGI LG732507011

Diamond specifications and retailer prices

From $404 CAD
$289 USD
As of October 27, 2026
Save $2,451 CAD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,855 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG732507011 or 732507011. Listed at 24 retailers as of October 27, 2026, with prices from $404 to $2,855, a $2,451 spread on the same certified stone. Brilliant Earth lists it at $2,855. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732507011
Dimensions7.79 × 5.28 × 3.59 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.28 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732507011
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 68.0%

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: $2,855 CAD|Low: $388 CAD|High: $2,855 CAD|Avg: $1,191 CAD
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
October 29, 2026
Retailer 4$404 CAD
Retailer 7$452 CAD
Retailer 5$501 CAD
Retailer 3$675 CAD
Retailer 12$721 CAD
Retailer 15$848 CAD
Retailer 6$852 CAD
Retailer 11$861 CAD
Retailer 9$884 CAD
Retailer 10$1,223 CAD
Retailer 16$1,540 CAD
Retailer 2$1,581 CAD
Retailer 8$1,962 CAD
Retailer 13$2,012 CAD
Retailer 14$2,092 CAD
Brilliant Earth$2,855 CAD

41 data points across 16 retailers

24 retailers$404 CAD to $2,855 CAD

A
Cheapest Retailer
-
$404 CAD
$289 USD
A
Retailer 2
-
$452 CAD
$323 USD
View
Final sale: no returns
A
Retailer 3
-
$469 CAD
$335 USD
View
A
Retailer 4
-
$501 CAD
$358 USD
View
A
Retailer 5
-
$501 CAD
$358 USD
View
A
Retailer 6
-
$675 CAD
$482 USD
View
A
Retailer 7
-
$721 CAD
$515 USD
View
A
Retailer 8
-
$848 CAD
€577 EUR
View
A
Retailer 9
-
$852 CAD
$609 USD
View
A
Retailer 10
-
$861 CAD
ZAR 9,943 ZAR
View
A
Retailer 11
-
$884 CAD
£497 GBP
View
B+
Retailer 12
-
$1,223 CAD
A$1,344 AUD
View
B+
Retailer 13
-
$1,233 CAD
$881 USD
View
B+
Retailer 14
-
$1,540 CAD
$1,100 USD
View
B+
Retailer 15
-
$1,581 CAD
A$1,738 AUD
View
B+
Retailer 16
-
$1,611 CAD
$1,151 USD
View
B+
Retailer 17
-
$1,680 CAD
$1,200 USD
View
B+
Retailer 18
-
$1,784 CAD
$1,275 USD
View
B
Retailer 19
-
$1,962 CAD
£1,104 GBP
View
B+
Retailer 20
-
$2,012 CAD
£1,132 GBP
View
B
Retailer 21
-
$2,067 CAD
$1,477 USD
View
Retailer 22
-
$2,092 CAD
$1,495 USD
View
Price last confirmed 8 days ago
Retailer 23
-
$2,582 CAD
$1,845 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
15733199A · Oct 29
$2,855 CAD
$2,040 USD
View
23 more retailers have this diamond
Prices start from $404 CADSave up to $2,451 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
$404 CAD