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Radiant|Lab Grown|IGI

5.06ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816608496

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

Certificate IGI LG816608496

Diamond specifications and retailer prices

From £6,696 GBP
$8,917 USD
As of October 27, 2026
Save £14,285 GBP (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £20,981 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.06ct lab-grown radiant diamond

This 5.06ct 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 LG816608496 or 816608496. Listed at 12 retailers as of October 27, 2026, with prices from £6,696 to £20,981, a £14,285 spread on the same certified stone. Brilliant Earth lists it at £20,981. 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

5.06
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608496
Dimensions11.95 × 8.57 × 5.60 mm
L/W Ratio1.39
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
11.95 mm8.57 mm5.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608496
Side View
Table 63.0%Crown 44.1°Girdle: STK-THKPavilion 33.3°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 27
Current: £20,981 GBP|Low: £6,696 GBP|High: £45,213 GBP|Avg: £14,667 GBP|-17.3%
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
October 29, 2026
Retailer 7£6,696 GBP
Retailer 4£6,820 GBP
Retailer 13£6,964 GBP
Retailer 11£7,690 GBP
Retailer 12£8,036 GBP
Retailer 10£8,503 GBP
Retailer 6£8,853 GBP
Retailer 8£8,985 GBP
Retailer 2£13,847 GBP
Retailer 3£15,113 GBP
Brilliant Earth£20,981 GBP
Retailer 5£22,321 GBP
Retailer 9£41,782 GBP

33 data points across 13 retailers

12 retailers£6,696 GBP to £20,981 GBP

A+
Cheapest Retailer
-
£6,696 GBP
$8,917 USD
A
Retailer 2
-
£6,820 GBP
$9,082 USD
View
A
Retailer 3
-
£6,964 GBP
$9,274 USD
View
A
Retailer 4
-
£7,690 GBP
$10,240 USD
View
A
Retailer 5
-
£8,036 GBP
$10,701 USD
View
A
Retailer 6
-
£8,503 GBP
$11,323 USD
View
A
Retailer 7
-
£8,853 GBP
$11,790 USD
View
A
Retailer 8
-
£8,985 GBP
$11,965 USD
View
A
Retailer 9
-
£13,847 GBP
View
B+
Retailer 10
-
£15,113 GBP
€19,167 EUR
View
Most Expensive
B
Brilliant Earth
21060513Y · Oct 29
£20,981 GBP
$27,940 USD
View
10 more retailers have this diamond
Prices start from £6,696 GBPSave up to £14,285 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+
5.06ct Radiant
£6,696 GBP