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Radiant|Lab Grown|IGI

1.54ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG522254225

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

Certificate IGI LG522254225

Diamond specifications and retailer prices

From $1,397 CAD
$1,000 USD
As of October 30, 2026
Save $3,146 CAD (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,815 CAD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522254225 or 522254225. Listed at 13 retailers as of October 30, 2026, with a 225% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522254225
Dimensions7.92 × 5.53 × 3.79 mm
L/W Ratio1.43
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
7.92 mm5.53 mm1.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522254225
Side View
Table 63.5%Crown 42.5°Girdle: Slightly ThickPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,639 CAD|Low: $1,397 CAD|High: $7,424 CAD|Avg: $3,988 CAD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 2$1,397 CAD
Retailer 5$2,214 CAD
Retailer 8$2,479 CAD
Retailer 6$2,569 CAD
Retailer 1$3,639 CAD
Retailer 7$4,041 CAD
Retailer 4$4,543 CAD
Retailer 9$7,099 CAD
Retailer 3$7,375 CAD

43 data points across 9 retailers

13 retailers$1,397 CAD to $4,543 CAD

B+
Cheapest Retailer
-
$1,397 CAD
$1,000 USD
B
Retailer 2
-
$2,214 CAD
$1,585 USD
View
B
Retailer 3
-
$2,410 CAD
$1,725 USD
View
B
Retailer 4
-
$2,479 CAD
$1,775 USD
View
Final sale: no returns
B
Retailer 5
-
$2,569 CAD
$1,839 USD
View
Retailer 6
-
$2,569 CAD
$1,839 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,808 CAD
$2,010 USD
View
B
Retailer 8
-
$3,639 CAD
£2,051 GBP
View
B
Retailer 9
-
$4,041 CAD
$2,893 USD
View
B
Retailer 10
-
$4,543 CAD
$3,252 USD
View
Most Expensive
NZ Jewellers
a70915a5-9ce0-4e81-b6ec-2c84b1f55a6d · Oct 28
$4,815 CAD
$3,447 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,397 CADSave up to $3,146 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
$1,397 CAD