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Radiant|Lab Grown|IGI

1.54ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG551273804

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

Certificate IGI LG551273804

Diamond specifications and retailer prices

From $1,519 CAD
As of November 6, 2026
Save $630 CAD (29%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,149 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551273804 or 551273804. Listed at 2 retailers as of November 5, 2026, with prices from $1,519 to $2,149, a $630 spread on the same certified stone. Diamond Quarter lists it at $2,149. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551273804
Dimensions8.26 × 5.65 × 3.85 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.26 mm5.65 mm1.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551273804
Side View
Table 65.0%Crown 42.7°Girdle: MediumPavilion 35°Culet: NoneDepth 68.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $485 CAD|Low: $468 CAD|High: $2,279 CAD|Avg: $1,110 CAD|-20.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
April 26, 2026
Retailer 6$468 CAD
Retailer 1$485 CAD
Retailer 3$700 CAD
Retailer 8$869 CAD
Retailer 2$876 CAD
Retailer 9$921 CAD
Retailer 5$986 CAD
Retailer 7$1,519 CAD
Retailer 4$1,969 CAD

53 data points across 9 retailers

2 retailers$1,519 CAD to $2,149 CAD

B
Cheapest Retailer
-
$1,519 CAD
Most Expensive
B
Diamond Quarter
1.54SI1FLG044709N · Nov 5
$2,149 CAD
£1,203 GBP
View
1 more retailer has this diamond
Prices start from $1,519 CADSave up to $630 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.

B
1.54ct Radiant
$1,519 CAD