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Radiant|Lab Grown|IGI

5.05ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG828681280

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

Certificate IGI LG828681280

Diamond specifications and retailer prices

From £7,966 GBP
$10,673 USD
As of October 31, 2026
Save £23,872 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £31,838 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.05ct lab-grown radiant diamond

This 5.05ct 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 LG828681280 or 828681280. Listed at 13 retailers as of October 31, 2026, with prices from £7,966 to £31,838, a £23,872 spread on the same certified stone. With Clarity lists it at £31,838. 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

5.05
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828681280
Dimensions11.94 × 8.68 × 5.69 mm
L/W Ratio1.38
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
11.94 mm8.68 mm5.05 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828681280
Side View
Table 63.0%Crown 44.2°Girdle: MediumPavilion 34.6°Culet: NoneDepth 65.6%

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 31
Current: £13,113 GBP|Low: £7,966 GBP|High: £34,286 GBP|Avg: £16,316 GBP|-7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 31, 2026
Retailer 5£7,966 GBP
Retailer 8£8,531 GBP
Retailer 2£8,831 GBP
Retailer 4£9,433 GBP
Retailer 7£12,792 GBP
Retailer 1£13,113 GBP
Retailer 11£13,585 GBP
Retailer 6£14,281 GBP
Retailer 10£15,863 GBP
Retailer 3£23,217 GBP
Retailer 9£24,599 GBP
With Clarity£31,838 GBP

19 data points across 12 retailers

13 retailers£7,966 GBP to £31,838 GBP

A
Cheapest Retailer
-
£7,966 GBP
$10,673 USD
A
Retailer 2
-
£8,531 GBP
HK$89,300 HKD
View
A
Retailer 3
-
£8,831 GBP
$11,833 USD
View
A
Retailer 4
-
£9,433 GBP
View
A
Retailer 5
-
£12,792 GBP
$17,140 USD
View
A
Retailer 6
-
£13,113 GBP
€16,733 EUR
View
A
Retailer 7
-
£13,585 GBP
View
B+
Retailer 8
-
£14,281 GBP
$19,135 USD
View
B+
Retailer 9
-
£15,863 GBP
ZAR 343,368 ZAR
View
B+
Retailer 10
-
£16,281 GBP
$21,815 USD
View
B
Retailer 11
-
£23,217 GBP
$31,108 USD
View
B
Retailer 12
-
£24,599 GBP
$32,959 USD
View
Most Expensive
B
With Clarity
828681280 · Oct 31
£31,838 GBP
$42,659 USD
View
12 more retailers have this diamond
Prices start from £7,966 GBPSave up to £23,872 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
5.05ct Radiant
£7,966 GBP