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Radiant|Lab Grown|IGI

0.73ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG650404301

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

Certificate IGI LG650404301

Diamond specifications and retailer prices

From £86 GBP
$115 USD
As of November 2, 2026
Save £804 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £890 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.73ct lab-grown radiant diamond

This 0.73ct lab-grown radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650404301 or 650404301. Listed at 13 retailers as of November 1, 2026, with prices from £86 to £890, a £804 spread on the same certified stone. MOH London lists it at £890. 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

0.73
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650404301
Dimensions6.52 × 4.43 × 3.01 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.52 mm4.43 mm0.73 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650404301
Side View
Table 64.0%Crown 39.8°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £890 GBP|Low: £86 GBP|High: £890 GBP|Avg: £259 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 11£86 GBP
Retailer 5£100 GBP
Retailer 12£113 GBP
Retailer 4£124 GBP
Retailer 9£195 GBP
Retailer 16£208 GBP
Retailer 2£217 GBP
Retailer 15£227 GBP
Retailer 3£232 GBP
Retailer 13£284 GBP
Retailer 7£303 GBP
Retailer 14£343 GBP
Retailer 10£382 GBP
Retailer 6£425 GBP
Retailer 8£440 GBP
MOH London£890 GBP

6 data points across 16 retailers

13 retailers£86 GBP to £890 GBP

A
Cheapest Retailer
-
£86 GBP
$115 USD
A
Retailer 2
-
£100 GBP
$134 USD
View
A
Retailer 3
-
£113 GBP
$152 USD
View
A
Retailer 4
-
£124 GBP
HK$1,300 HKD
View
A
Retailer 5
-
£195 GBP
€249 EUR
View
A
Retailer 6
-
£208 GBP
$279 USD
View
A
Retailer 7
-
£217 GBP
View
A
Retailer 8
-
£227 GBP
$305 USD
View
A
Retailer 9
-
£232 GBP
View
B+
Retailer 10
-
£284 GBP
$381 USD
View
B+
Retailer 11
-
£343 GBP
$460 USD
View
B+
Retailer 12
-
£382 GBP
$513 USD
View
Most Expensive
B
MOH London
LG650404301 · Nov 1
£890 GBP
View
12 more retailers have this diamond
Prices start from £86 GBPSave up to £804 GBP

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.

A
0.73ct Radiant
£86 GBP