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Radiant|Lab Grown|IGI

5.10ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG828616343

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

Certificate IGI LG828616343

Diamond specifications and retailer prices

From £8,101 GBP
$10,854 USD
As of October 31, 2026
Save £16,699 GBP (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £24,800 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.1ct lab-grown radiant diamond

This 5.1ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828616343 or 828616343. Listed at 14 retailers as of October 30, 2026, with prices from £8,101 to £24,800, a £16,699 spread on the same certified stone. Taylor and Hart lists it at £24,800. 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

5.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828616343
Dimensions12.16 × 8.68 × 5.63 mm
L/W Ratio1.40
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 mm8.68 mm5.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828616343
Side View
Table 63.0%Crown 40.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 64.9%

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 31
Current: £8,101 GBP|Low: £8,101 GBP|High: £46,169 GBP|Avg: £17,032 GBP|-9.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 31, 2026
Retailer 1£8,101 GBP
Retailer 2£8,191 GBP
Retailer 7£8,607 GBP
Retailer 3£8,919 GBP
Retailer 9£9,526 GBP
Retailer 6£11,844 GBP
Retailer 11£13,717 GBP
Retailer 12£14,224 GBP
Retailer 5£14,418 GBP
Retailer 10£16,016 GBP
Retailer 4£23,447 GBP
Taylor and Hart£24,800 GBP
Retailer 8£42,871 GBP

19 data points across 13 retailers

14 retailers£8,101 GBP to £24,800 GBP

A
Cheapest Retailer
-
£8,101 GBP
$10,854 USD
A
Retailer 2
-
£8,191 GBP
$10,975 USD
View
A
Retailer 3
-
£8,607 GBP
HK$90,100 HKD
View
A
Retailer 4
-
£8,919 GBP
$11,950 USD
View
A
Retailer 5
-
£9,526 GBP
View
A
Retailer 6
-
£11,844 GBP
$15,870 USD
View
A
Retailer 7
-
£13,717 GBP
View
Retailer 8
-
£14,224 GBP
€18,151 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£14,418 GBP
$19,319 USD
View
B+
Retailer 10
-
£16,016 GBP
ZAR 346,688 ZAR
View
B+
Retailer 11
-
£17,128 GBP
$22,950 USD
View
B
Retailer 12
-
£23,447 GBP
$31,416 USD
View
Most Expensive
B
Taylor and Hart
8M0LO44 · Oct 30
£24,800 GBP
$33,229 USD
View
12 more retailers have this diamond
Prices start from £8,101 GBPSave up to £16,699 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
5.10ct Radiant
£8,101 GBP