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Cushion|Lab Grown|IGI

0.83ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG592319904

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG592319904

Diamond specifications and retailer prices

From £320 GBP
$430 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £320 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 0.83ct lab-grown cushion diamond

This 0.83ct lab-grown cushion sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG592319904 or 592319904. 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

0.83
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592319904
Dimensions6.80 × 4.71 × 3.14 mm
L/W Ratio1.44
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
6.80 mm4.71 mm0.83 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592319904
Side View
Table 61.0%Crown 35.7°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 66.7%

Caratlytics Score

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

Last verified: Nov 2
Current: £320 GBP|Low: £320 GBP|High: £501 GBP|Avg: £423 GBP|-4.4%
Brilliant Earth
Retailer 2
October 4, 2026
Brilliant Earth£320 GBP
Retailer 2£501 GBP

23 data points across 2 retailers

1 retailer

B+
Brilliant Earth
7805612B · Nov 2
£320 GBP
$430 USD
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B+
0.83ct Cushion
£320 GBP