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Radiant|Lab Grown|IGI

1.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG704537501

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

Certificate IGI LG704537501

Diamond specifications and retailer prices

From $4,177 CAD
$2,990 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $4,177 CAD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG704537501 or 704537501. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704537501
Dimensions7.72 × 5.38 × 3.56 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.72 mm5.38 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704537501
Side View
Table 61.0%Crown 42.1°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 66.2%

Caratlytics Score

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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: $4,177 CAD|Low: $855 CAD|High: $5,169 CAD|Avg: $2,679 CAD|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 4, 2026
Retailer 4$858 CAD
Retailer 5$1,357 CAD
Retailer 6$1,404 CAD
Retailer 3$2,287 CAD
Retailer 2$2,809 CAD
Retailer 7$3,058 CAD
Retailer 8$3,108 CAD
Brilliant Earth$4,177 CAD

41 data points across 8 retailers

1 retailer

B
Brilliant Earth
18984509B · Oct 29
$4,177 CAD
$2,990 USD
View

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 Radiant
$4,177 CAD