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Radiant|Lab Grown|IGI

5.13ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816608497

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

Certificate IGI LG816608497

Diamond specifications and retailer prices

From £6,745 GBP
$9,038 USD
As of October 30, 2026
Save £8,263 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £15,229 GBP at Yorxs · As of October 23, 2026
View at Yorxs

About this 5.13ct lab-grown radiant diamond

This 5.13ct 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 LG816608497 or 816608497. Listed at 12 retailers as of October 30, 2026, with a 123% 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

5.13
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608497
Dimensions12.20 × 8.59 × 5.54 mm
L/W Ratio1.42
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
12.20 mm8.59 mm5.13 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608497
Side View
Table 66.0%Crown 40.2°Girdle: THK-VTKPavilion 34.1°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
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: £15,009 GBP|Low: £6,745 GBP|High: £45,541 GBP|Avg: £15,188 GBP|-41.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Yorxs
October 30, 2026
Retailer 7£6,745 GBP
Retailer 3£6,871 GBP
Retailer 2£7,015 GBP
Retailer 11£7,747 GBP
Retailer 12£8,094 GBP
Retailer 10£8,566 GBP
Retailer 8£9,049 GBP
Retailer 6£9,072 GBP
Retailer 5£13,948 GBP
Retailer 1£15,009 GBP
Yorxs£15,229 GBP
Retailer 4£22,491 GBP
Retailer 9£42,093 GBP

33 data points across 13 retailers

12 retailers£6,745 GBP to £15,009 GBP

A
Cheapest Retailer
-
£6,745 GBP
$9,038 USD
A
Retailer 2
-
£6,871 GBP
$9,207 USD
View
A
Retailer 3
-
£7,015 GBP
$9,399 USD
View
A
Retailer 4
-
£7,747 GBP
$10,380 USD
View
A
Retailer 5
-
£8,094 GBP
$10,845 USD
View
A
Retailer 6
-
£8,566 GBP
$11,477 USD
View
A
Retailer 7
-
£9,049 GBP
$12,125 USD
View
A
Retailer 8
-
£9,072 GBP
$12,155 USD
View
B+
Retailer 9
-
£13,948 GBP
View
B+
Retailer 10
-
£15,009 GBP
$20,110 USD
View
Most Expensive
Yorxs
590861700 · Oct 23
£15,229 GBP
€19,433 EUR
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from £6,745 GBPSave up to £8,263 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
5.13ct Radiant
£6,745 GBP