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Round|Lab Grown|IGI

1.33ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG582393957

Shape and cutting style on the report: Round brilliant

Certificate IGI LG582393957

Diamond specifications and retailer prices

From £486 GBP
$650 USD
As of November 5, 2026
1 retailer carries this diamond
Only listing: £486 GBP 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 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG582393957 or 582393957. Listed at a single retailer as of November 5, 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

1.33
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582393957
Dimensions7.11 × 7.09 × 4.31 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
7.11 mm7.09 mm1.33 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582393957
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 41°Culet: NoneDepth 60.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £486 GBP|Low: £250 GBP|High: £867 GBP|Avg: £420 GBP|-13.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
April 28, 2026
Retailer 5£250 GBP
Retailer 2£308 GBP
Retailer 6£376 GBP
Retailer 3£391 GBP
Brilliant Earth£486 GBP
Retailer 4£516 GBP

55 data points across 6 retailers

1 retailer

B
Brilliant Earth
7425648Y · Nov 5
£486 GBP
$650 USD
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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
1.33ct Round
£486 GBP