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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 €524 EUR
$585 USD
As of November 1, 2026
Save €380 EUR (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €904 EUR at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from €524 to €904, a €380 spread on the same certified stone. Brilliant Earth lists it at €904. 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 1
Current: €904 EUR|Low: €147 EUR|High: €904 EUR|Avg: €525 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
September 23, 2026
Retailer 3€193 EUR
Retailer 4€402 EUR
Retailer 2€524 EUR
Brilliant Earth€904 EUR

22 data points across 4 retailers

2 retailers€524 EUR to €904 EUR

A
Cheapest Retailer
-
€524 EUR
$585 USD
Most Expensive
B
Brilliant Earth
11704602Y · Oct 31
€904 EUR
$1,010 USD
View
1 more retailer has this diamond
Prices start from €524 EURSave up to €380 EUR

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
€524 EUR