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Radiant|Lab Grown|IGI

5.03ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG617472717

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

Certificate IGI LG617472717

Diamond specifications and retailer prices

From £525 GBP
$704 USD
As of November 2, 2026
Save £2,873 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,398 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 LG617472717 or 617472717. Listed at 19 retailers as of November 2, 2026, with prices from £525 to £3,398, a £2,873 spread on the same certified stone. Brilliant Earth lists it at £3,398. 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 angle41.1°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617472717
Dimensions12.17 × 8.36 × 5.46 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.17 mm8.36 mm5.03 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617472717
Side View
Table 66.0%Crown 41.1°Girdle: MediumPavilion 30.9°Culet: NoneDepth 65.3%

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: £3,398 GBP|Low: £504 GBP|High: £3,398 GBP|Avg: £1,179 GBP
Brilliant Earth
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 4£525 GBP
Retailer 3£571 GBP
Retailer 6£586 GBP
Retailer 8£608 GBP
Retailer 13£608 GBP
Retailer 9£680 GBP
Retailer 16£741 GBP
Retailer 12£966 GBP
Retailer 10£975 GBP
Retailer 5£988 GBP
Retailer 15£1,001 GBP
Retailer 2£1,384 GBP
Retailer 14£1,710 GBP
Retailer 7£1,990 GBP
Retailer 11£2,389 GBP
Brilliant Earth£3,398 GBP

37 data points across 16 retailers

19 retailers£525 GBP to £3,398 GBP

A
Cheapest Retailer
-
£525 GBP
$704 USD
A
Retailer 2
-
£571 GBP
$766 USD
View
A
Retailer 3
-
£586 GBP
$787 USD
View
Final sale: no returns
A
Retailer 4
-
£608 GBP
$816 USD
View
Retailer 5
-
£608 GBP
$816 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
£680 GBP
View
A
Retailer 7
-
£741 GBP
$995 USD
View
B+
Retailer 8
-
£948 GBP
$1,272 USD
View
B+
Retailer 9
-
£966 GBP
€1,234 EUR
View
B+
Retailer 10
-
£975 GBP
View
B+
Retailer 11
-
£988 GBP
$1,326 USD
View
B+
Retailer 12
-
£1,001 GBP
$1,343 USD
View
B+
Retailer 13
-
£1,384 GBP
$1,857 USD
View
B
Retailer 14
-
£1,710 GBP
$2,295 USD
View
B
Retailer 15
-
£1,990 GBP
$2,671 USD
View
B
Retailer 16
-
£2,097 GBP
$2,815 USD
View
Retailer 17
-
£2,299 GBP
$3,085 USD
View
Price last confirmed 41 days ago
B
Retailer 18
-
£2,389 GBP
View
Most Expensive
B
Brilliant Earth
9075328A · Nov 2
£3,398 GBP
$4,560 USD
View
18 more retailers have this diamond
Prices start from £525 GBPSave up to £2,873 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
£525 GBP