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Radiant|Lab Grown|IGI

5.53ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG582386664

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

Certificate IGI LG582386664

Diamond specifications and retailer prices

From £484 GBP
$650 USD
As of November 2, 2026
Save £2,299 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,783 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 5.53ct lab-grown radiant diamond

This 5.53ct 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 LG582386664 or 582386664. Listed at 15 retailers as of November 1, 2026, with prices from £484 to £2,783, a £2,299 spread on the same certified stone. Rare Carat lists it at £2,783. 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

5.53
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582386664
Dimensions12.42 × 8.77 × 5.77 mm
L/W Ratio1.42
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
12.42 mm8.77 mm5.53 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582386664
Side View
Table 65.0%Crown 44.8°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 65.8%

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: £2,783 GBP|Low: £484 GBP|High: £6,655 GBP|Avg: £1,761 GBP|-12.1%
Rare Carat
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
Retailer 17
November 3, 2026
Retailer 7£484 GBP
Retailer 6£527 GBP
Retailer 14£562 GBP
Retailer 10£628 GBP
Retailer 17£668 GBP
Retailer 15£693 GBP
Retailer 16£872 GBP
Retailer 2£889 GBP
Retailer 12£910 GBP
Retailer 5£917 GBP
Retailer 13£1,434 GBP
Retailer 3£1,579 GBP
Retailer 4£1,686 GBP
Retailer 11£2,366 GBP
Rare Carat£2,783 GBP
Retailer 9£4,429 GBP
Retailer 8£6,655 GBP

8 data points across 17 retailers

15 retailers£484 GBP to £2,783 GBP

A
Cheapest Retailer
-
£484 GBP
$650 USD
A
Retailer 2
-
£527 GBP
$707 USD
View
A
Retailer 3
-
£562 GBP
$754 USD
View
A
Retailer 4
-
£628 GBP
View
A
Retailer 5
-
£668 GBP
HK$7,000 HKD
View
A
Retailer 6
-
£693 GBP
$930 USD
View
A
Retailer 7
-
£872 GBP
$1,170 USD
View
A
Retailer 8
-
£889 GBP
View
B+
Retailer 9
-
£910 GBP
€1,163 EUR
View
B+
Retailer 10
-
£917 GBP
$1,231 USD
View
B+
Retailer 11
-
£1,434 GBP
$1,925 USD
View
B
Retailer 12
-
£1,579 GBP
$2,119 USD
View
B
Retailer 13
-
£1,686 GBP
$2,262 USD
View
B
Retailer 14
-
£2,366 GBP
View
Most Expensive
B
Rare Carat
KI6643866KF582 · Nov 1
£2,783 GBP
$3,735 USD
View
14 more retailers have this diamond
Prices start from £484 GBPSave up to £2,299 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
5.53ct Radiant
£484 GBP