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Radiant|Lab Grown|IGI

5.20ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG811635548

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

Certificate IGI LG811635548

Diamond specifications and retailer prices

From £6,836 GBP
$9,159 USD
As of October 30, 2026
Save £7,299 GBP (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £15,435 GBP at Yorxs · As of October 23, 2026
View at Yorxs

About this 5.2ct lab-grown radiant diamond

This 5.2ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811635548 or 811635548. Listed at 14 retailers as of October 29, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635548
Dimensions12.14 × 8.65 × 5.65 mm
L/W Ratio1.40
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.14 mm8.65 mm5.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635548
Side View
Table 63.0%Crown 42.1°Girdle: Slightly ThickPavilion 33.2°Culet: NoneDepth 65.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £13,068 GBP|Low: £6,836 GBP|High: £46,153 GBP|Avg: £14,700 GBP|-40.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Yorxs
October 30, 2026
Retailer 8£6,836 GBP
Retailer 10£6,876 GBP
Retailer 4£6,965 GBP
Retailer 3£7,109 GBP
Retailer 13£7,848 GBP
Retailer 2£8,202 GBP
Retailer 11£8,680 GBP
Retailer 7£9,113 GBP
Retailer 9£9,170 GBP
Retailer 1£13,068 GBP
Retailer 6£14,135 GBP
Yorxs£15,435 GBP
Retailer 5£23,039 GBP
Retailer 12£42,653 GBP

34 data points across 14 retailers

14 retailers£6,836 GBP to £14,135 GBP

A+
Cheapest Retailer
-
£6,836 GBP
$9,159 USD
A
Retailer 2
-
£6,876 GBP
$9,213 USD
View
A
Retailer 3
-
£6,965 GBP
$9,332 USD
View
A
Retailer 4
-
£7,109 GBP
$9,525 USD
View
A
Retailer 5
-
£7,848 GBP
$10,515 USD
View
A
Retailer 6
-
£8,202 GBP
$10,990 USD
View
A
Retailer 7
-
£8,680 GBP
$11,630 USD
View
A
Retailer 8
-
£9,113 GBP
$12,210 USD
View
A
Retailer 9
-
£9,170 GBP
$12,287 USD
View
A
Retailer 10
-
£13,068 GBP
$17,510 USD
View
A
Retailer 11
-
£14,135 GBP
View
Retailer 12
-
£14,420 GBP
$19,321 USD
View
Price last confirmed 101 days ago
Most Expensive
Yorxs
571891264 · Oct 23
£15,435 GBP
€19,697 EUR
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from £6,836 GBPSave up to £7,299 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+
5.20ct Radiant
£6,836 GBP