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Round|Lab Grown|IGI

1.53ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG494161649

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494161649

Diamond specifications and retailer prices

From €758 EUR
$850 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €758 EUR 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 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494161649 or 494161649. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.53
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494161649
Dimensions7.43 × 7.46 × 4.52 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.43 mm7.46 mm1.53 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494161649
Side View
Table 58.5%Crown 33.7°GirdlePavilion 40.8°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €758 EUR|Low: €758 EUR|High: €2,413 EUR|Avg: €1,625 EUR|-22.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Brilliant Earth€758 EUR
Retailer 2€1,377 EUR
Retailer 3€1,733 EUR
Retailer 5€1,737 EUR
Retailer 4€2,413 EUR

2 data points across 5 retailers

1 retailer

B+
Brilliant Earth
19773251A · Nov 2
€758 EUR
$850 USD
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B+
1.53ct Round
€758 EUR