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Radiant|Lab Grown|IGI

5.03ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG670481000

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

Certificate IGI LG670481000

Diamond specifications and retailer prices

From £429 GBP
$576 USD
As of November 2, 2026
Save £1,880 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,309 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 5.03ct lab-grown radiant diamond

This 5.03ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670481000 or 670481000. Listed at 15 retailers as of November 1, 2026, with prices from £429 to £2,309, a £1,880 spread on the same certified stone. MOH London lists it at £2,309. 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

5.03
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670481000
Dimensions11.99 × 8.42 × 5.62 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.99 mm8.42 mm5.03 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670481000
Side View
Table 65.0%Crown 44.9°Girdle: STK-THKPavilion 35.2°Culet: NoneDepth 66.7%

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: £2,309 GBP|Low: £429 GBP|High: £4,031 GBP|Avg: £1,426 GBP|-0.5%
MOH London
Retailer 2
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Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 2, 2026
Retailer 7£429 GBP
Retailer 6£481 GBP
Retailer 13£532 GBP
Retailer 2£557 GBP
Retailer 16£591 GBP
Retailer 14£630 GBP
Retailer 15£803 GBP
Retailer 11£812 GBP
Retailer 5£817 GBP
Retailer 10£831 GBP
Retailer 3£969 GBP
Retailer 12£1,320 GBP
Retailer 17£1,399 GBP
Retailer 4£2,295 GBP
MOH London£2,309 GBP
Retailer 8£4,029 GBP
Retailer 9£4,031 GBP

7 data points across 17 retailers

15 retailers£429 GBP to £2,309 GBP

A
Cheapest Retailer
-
£429 GBP
$576 USD
A
Retailer 2
-
£481 GBP
$645 USD
View
A
Retailer 3
-
£532 GBP
$714 USD
View
A
Retailer 4
-
£557 GBP
View
A
Retailer 5
-
£591 GBP
HK$6,200 HKD
View
A
Retailer 6
-
£630 GBP
$845 USD
View
B+
Retailer 7
-
£803 GBP
$1,078 USD
View
B+
Retailer 8
-
£812 GBP
€1,038 EUR
View
B+
Retailer 9
-
£817 GBP
$1,097 USD
View
A
Retailer 10
-
£831 GBP
View
B+
Retailer 11
-
£969 GBP
$1,300 USD
View
B+
Retailer 12
-
£1,320 GBP
$1,771 USD
View
B
Retailer 13
-
£1,399 GBP
$1,877 USD
View
B
Retailer 14
-
£2,295 GBP
$3,080 USD
View
Most Expensive
B
MOH London
LG670481000 · Nov 1
£2,309 GBP
View
14 more retailers have this diamond
Prices start from £429 GBPSave up to £1,880 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
5.03ct Radiant
£429 GBP