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Radiant|Lab Grown|IGI

1.51ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG601392696

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

Certificate IGI LG601392696

Diamond specifications and retailer prices

From £523 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: £523 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 1.51ct lab-grown radiant diamond

This 1.51ct 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 LG601392696 or 601392696. 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

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601392696
Dimensions8.24 × 5.60 × 3.83 mm
L/W Ratio1.47
Culet sizePointed
Top View
8.24 mm5.60 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601392696
Side View
Table 64.0%Crown 44.1°Girdle: MediumPavilion 35.1°Culet: NoneDepth 68.4%

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: £267 GBP|Low: £100 GBP|High: £1,554 GBP|Avg: £641 GBP|-23.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
May 25, 2026
Retailer 3£100 GBP
Retailer 1£267 GBP
Retailer 4£446 GBP
Retailer 6£507 GBP
Retailer 2£573 GBP
Retailer 5£1,121 GBP

71 data points across 6 retailers

1 retailer

B
Diamond Quarter
1.51SI1F60963DBAN · Nov 5
£523 GBP
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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
1.51ct Radiant
£523 GBP