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Radiant|Lab Grown|IGI

5.09ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG667457208

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

Certificate IGI LG667457208

Diamond specifications and retailer prices

From £667 GBP
$895 USD
As of November 2, 2026
Save £5,257 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,924 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 5.09ct lab-grown radiant diamond

This 5.09ct 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 LG667457208 or 667457208. Listed at 16 retailers as of November 2, 2026, with prices from £667 to £5,924, a £5,257 spread on the same certified stone. Do Amore Diamonds lists it at £5,924. 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

5.09
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667457208
Dimensions12.19 × 8.53 × 5.83 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.19 mm8.53 mm5.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667457208
Side View
Table 60.0%Crown 36.8°Girdle: MED-STKPavilion 35°Culet: NoneDepth 68.3%

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: £5,924 GBP|Low: £641 GBP|High: £5,924 GBP|Avg: £1,667 GBP
Do Amore Diamonds
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
November 2, 2026
Retailer 11£667 GBP
Retailer 3£726 GBP
Retailer 4£774 GBP
Retailer 12£774 GBP
Retailer 5£902 GBP
Retailer 2£955 GBP
Retailer 14£1,090 GBP
Retailer 7£1,318 GBP
Retailer 13£1,601 GBP
Retailer 10£1,722 GBP
Retailer 6£2,086 GBP
Retailer 9£2,280 GBP
Retailer 8£2,897 GBP
Do Amore Diamonds£5,924 GBP

42 data points across 14 retailers

16 retailers£667 GBP to £5,924 GBP

A
Cheapest Retailer
-
£667 GBP
$895 USD
A
Retailer 2
-
£726 GBP
$974 USD
View
A
Retailer 3
-
£774 GBP
$1,039 USD
View
Retailer 4
-
£774 GBP
$1,039 USD
View
Price last confirmed 21 days ago
A
Retailer 5
-
£814 GBP
$1,092 USD
View
B+
Retailer 6
-
£902 GBP
$1,210 USD
View
B+
Retailer 7
-
£905 GBP
$1,215 USD
View
B+
Retailer 8
-
£955 GBP
View
B+
Retailer 9
-
£1,090 GBP
$1,463 USD
View
B+
Retailer 10
-
£1,318 GBP
View
B
Retailer 11
-
£1,601 GBP
$2,149 USD
View
B
Retailer 12
-
£1,722 GBP
$2,311 USD
View
B
Retailer 13
-
£2,086 GBP
$2,800 USD
View
B
Retailer 14
-
£2,280 GBP
$3,060 USD
View
B
Retailer 15
-
£2,897 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8CFCF22D3 · Nov 2
£5,924 GBP
$7,950 USD
View
15 more retailers have this diamond
Prices start from £667 GBPSave up to £5,257 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
5.09ct Radiant
£667 GBP