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Radiant|Lab Grown|IGI

5.22ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784644673

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

Certificate IGI LG784644673

Diamond specifications and retailer prices

From £6,903 GBP
$9,193 USD
As of October 27, 2026
Save £15,411 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £22,314 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 5.22ct lab-grown radiant diamond

This 5.22ct 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 LG784644673 or 784644673. Listed at 15 retailers as of October 27, 2026, with prices from £6,903 to £22,314, a £15,411 spread on the same certified stone. Frank Darling lists it at £22,314. 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

5.22
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644673
Dimensions12.16 × 8.71 × 5.80 mm
L/W Ratio1.40
Culet sizePointed
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
12.16 mm8.71 mm5.22 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644673
Side View
Table 66.0%Crown 37.5°Girdle: Slightly ThickPavilion 35.2°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
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 27
Current: £22,314 GBP|Low: £6,903 GBP|High: £46,610 GBP|Avg: £14,233 GBP|-12.5%
Frank Darling
Retailer 2
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 9£6,903 GBP
Retailer 11£6,944 GBP
Retailer 5£7,035 GBP
Retailer 3£7,180 GBP
Retailer 14£7,926 GBP
Retailer 15£8,284 GBP
Retailer 12£8,766 GBP
Retailer 8£9,195 GBP
Retailer 10£9,260 GBP
Retailer 7£9,316 GBP
Retailer 2£14,276 GBP
Retailer 4£15,591 GBP
Retailer 6£21,642 GBP
Frank Darling£22,314 GBP
Retailer 13£43,073 GBP

36 data points across 15 retailers

15 retailers£6,903 GBP to £22,314 GBP

A+
Cheapest Retailer
-
£6,903 GBP
$9,193 USD
A
Retailer 2
-
£6,944 GBP
$9,247 USD
View
A
Retailer 3
-
£7,035 GBP
$9,368 USD
View
A
Retailer 4
-
£7,180 GBP
$9,561 USD
View
A
Retailer 5
-
£7,926 GBP
$10,555 USD
View
A
Retailer 6
-
£8,284 GBP
$11,032 USD
View
A
Retailer 7
-
£8,766 GBP
$11,674 USD
View
A
Retailer 8
-
£9,195 GBP
$12,245 USD
View
A
Retailer 9
-
£9,260 GBP
$12,332 USD
View
A
Retailer 10
-
£9,316 GBP
$12,406 USD
View
Final sale: no returns
A
Retailer 11
-
£14,276 GBP
View
B+
Retailer 12
-
£15,591 GBP
€19,773 EUR
View
B
Retailer 13
-
£21,642 GBP
$28,820 USD
View
Most Expensive
B+
Frank Darling
P83F-3EL · Oct 29
£22,314 GBP
$29,715 USD
View
13 more retailers have this diamond
Prices start from £6,903 GBPSave up to £15,411 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+
5.22ct Radiant
£6,903 GBP