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Radiant|Lab Grown|IGI

5.08ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768630155

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

Certificate IGI LG768630155

Diamond specifications and retailer prices

From £6,083 GBP
$8,100 USD
As of October 30, 2026
Save £21,614 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £27,696 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.08ct lab-grown radiant diamond

This 5.08ct 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 LG768630155 or 768630155. Listed at 12 retailers as of October 30, 2026, with prices from £6,083 to £27,696, a £21,614 spread on the same certified stone. Taylor and Hart lists it at £27,696. 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

5.08
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630155
Dimensions12.06 × 8.58 × 5.67 mm
L/W Ratio1.41
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
12.06 mm8.58 mm5.08 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630155
Side View
Table 63.0%Crown 41.1°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
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 30
Current: £10,814 GBP|Low: £6,083 GBP|High: £31,733 GBP|Avg: £15,357 GBP|-17.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 30, 2026
Retailer 12£6,083 GBP
Retailer 10£7,195 GBP
Retailer 4£7,628 GBP
Retailer 8£8,718 GBP
Retailer 9£8,791 GBP
Retailer 1£10,814 GBP
Retailer 6£14,350 GBP
Retailer 2£15,058 GBP
Retailer 7£15,274 GBP
Retailer 5£18,463 GBP
Retailer 3£21,064 GBP
Retailer 11£25,177 GBP
Taylor and Hart£27,696 GBP

34 data points across 13 retailers

12 retailers£6,083 GBP to £27,696 GBP

A
Cheapest Retailer
-
£6,083 GBP
$8,100 USD
A
Retailer 2
-
£7,195 GBP
$9,582 USD
View
A
Retailer 3
-
£8,718 GBP
$11,610 USD
View
A
Retailer 4
-
£8,791 GBP
$11,707 USD
View
A
Retailer 5
-
£10,814 GBP
View
A
Retailer 6
-
£14,350 GBP
View
A
Retailer 7
-
£15,058 GBP
$20,052 USD
View
B+
Retailer 8
-
£15,274 GBP
€19,372 EUR
View
B+
Retailer 9
-
£18,463 GBP
ZAR 397,202 ZAR
View
B+
Retailer 10
-
£21,064 GBP
$28,050 USD
View
B+
Retailer 11
-
£25,177 GBP
$33,528 USD
View
Most Expensive
B
Taylor and Hart
9V4Z6SC · Oct 30
£27,696 GBP
$36,882 USD
View
11 more retailers have this diamond
Prices start from £6,083 GBPSave up to £21,614 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
5.08ct Radiant
£6,083 GBP