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Radiant|Lab Grown|IGI

1.97ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG648463803

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG648463803

Diamond specifications and retailer prices

From £551 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: £551 GBP at Diamond Quarter
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 Diamond Quarter

About this 1.97ct lab-grown radiant diamond

This 1.97ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648463803 or 648463803. 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

1.97
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648463803
Dimensions8.97 × 6.19 × 4.12 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.97 mm6.19 mm1.97 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648463803
Side View
Table 69.0%Crown 44.9°Girdle: MediumPavilion 35°CuletDepth 66.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £551 GBP|Low: £551 GBP|High: £551 GBP|Avg: £551 GBP
September 26, 2026
Diamond Quarter£551 GBP

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
1.97SI1FLG0385E4N · Nov 5
£551 GBP
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B+
1.97ct Radiant
£551 GBP