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0.91ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG732502818

Shape and cutting style on the report: Round brilliant

Certificate IGI LG732502818

Diamond specifications and retailer prices

From £373 GBP
$500 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £373 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 0.91ct lab-grown round diamond

This 0.91ct lab-grown round 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 LG732502818 or 732502818. Listed at a single retailer as of October 31, 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

0.91
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732502818
Dimensions6.27 × 6.25 × 3.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.27 mm6.25 mm0.91 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732502818
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 41°Culet: NoneDepth 61.4%

Caratlytics Score

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

Last verified: Oct 31
Current: £373 GBP|Low: £373 GBP|High: £373 GBP|Avg: £373 GBP
December 30, 2025
Brilliant Earth£373 GBP

4 data points across 1 retailer

1 retailer

B+
Brilliant Earth
15619999A · Oct 31
£373 GBP
$500 USD
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B+
0.91ct Round
£373 GBP