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Radiant|Lab Grown|IGI

5.11ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784642156

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

Certificate IGI LG784642156

Diamond specifications and retailer prices

From £6,719 GBP
$9,003 USD
As of October 30, 2026
Save £8,230 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £15,169 GBP at Yorxs · As of October 23, 2026
View at Yorxs

About this 5.11ct lab-grown radiant diamond

This 5.11ct 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 LG784642156 or 784642156. Listed at 14 retailers as of October 30, 2026, with a 122% 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

5.11
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642156
Dimensions12.04 × 8.60 × 5.73 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
12.04 mm8.60 mm5.11 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642156
Side View
Table 64.0%Crown 39.8°Girdle: ThickPavilion 34.8°Culet: NoneDepth 66.6%

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: £14,949 GBP|Low: £6,719 GBP|High: £45,369 GBP|Avg: £13,234 GBP|-31.1%
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£6,719 GBP
Retailer 10£6,761 GBP
Retailer 4£6,845 GBP
Retailer 3£6,988 GBP
Retailer 13£7,717 GBP
Retailer 2£8,063 GBP
Retailer 11£8,533 GBP
Retailer 9£9,016 GBP
Retailer 7£9,046 GBP
Retailer 5£9,068 GBP
Retailer 6£13,895 GBP
Retailer 1£14,949 GBP
Yorxs£15,169 GBP
Retailer 12£41,929 GBP

36 data points across 14 retailers

14 retailers£6,719 GBP to £14,949 GBP

A
Cheapest Retailer
-
£6,719 GBP
$9,003 USD
A
Retailer 2
-
£6,761 GBP
$9,059 USD
View
A
Retailer 3
-
£6,845 GBP
$9,171 USD
View
A
Retailer 4
-
£6,988 GBP
$9,363 USD
View
A
Retailer 5
-
£7,717 GBP
$10,340 USD
View
A
Retailer 6
-
£8,063 GBP
$10,804 USD
View
A
Retailer 7
-
£8,533 GBP
$11,433 USD
View
A
Retailer 8
-
£9,016 GBP
$12,080 USD
View
A
Retailer 9
-
£9,046 GBP
$12,120 USD
View
A
Retailer 10
-
£9,068 GBP
$12,150 USD
View
Final sale: no returns
B+
Retailer 11
-
£13,895 GBP
View
B+
Retailer 12
-
£14,949 GBP
$20,030 USD
View
Most Expensive
Yorxs
528548997 · Oct 23
£15,169 GBP
€19,357 EUR
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from £6,719 GBPSave up to £8,230 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
5.11ct Radiant
£6,719 GBP