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Radiant|Lab Grown|IGI

1.54ct G SI2 Radiant Lab Grown Diamond

ID • G/SI2 • IGI LG529287250

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

Certificate IGI LG529287250

Diamond specifications and retailer prices

From $585 USD
As of November 2, 2026
Save $425 USD (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,010 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529287250 or 529287250. Listed at 2 retailers as of November 2, 2026, with prices from $585 to $1,010, a $425 spread on the same certified stone. Brilliant Earth lists it at $1,010. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529287250
Dimensions8.15 × 5.69 × 3.73 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
8.15 mm5.69 mm1.54 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529287250
Side View
Table 63.5%Crown 44.1°Girdle: Slightly ThickPavilion 31.8°Culet: NoneDepth 65.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,010 USD|Low: $164 USD|High: $1,010 USD|Avg: $586 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
September 23, 2026
Retailer 3$216 USD
Retailer 4$449 USD
Retailer 2$585 USD
Brilliant Earth$1,010 USD

22 data points across 4 retailers

2 retailers$585 USD to $1,010 USD

A
Cheapest Retailer
-
$585 USD
Most Expensive
B
Brilliant Earth
11704602Y · Nov 2
$1,010 USD
View
1 more retailer has this diamond
Prices start from $585 USDSave up to $425 USD

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
1.54ct Radiant
$585 USD