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Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG828681283

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

Certificate IGI LG828681283

Diamond specifications and retailer prices

From £8,074 GBP
$10,818 USD
As of October 31, 2026
Save £24,017 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £32,091 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.09ct lab-grown radiant diamond

This 5.09ct 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 LG828681283 or 828681283. Listed at 13 retailers as of October 31, 2026, with prices from £8,074 to £32,091, a £24,017 spread on the same certified stone. With Clarity lists it at £32,091. 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

5.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828681283
Dimensions12.35 × 8.63 × 5.52 mm
L/W Ratio1.43
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
12.35 mm8.63 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828681283
Side View
Table 63.0%Crown 40.8°Girdle: MED-STKPavilion 32.8°Culet: NoneDepth 64.0%

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: £9,508 GBP|Low: £8,074 GBP|High: £34,559 GBP|Avg: £16,451 GBP|-8.8%
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 4£8,074 GBP
Retailer 7£8,598 GBP
Retailer 2£8,901 GBP
Retailer 1£9,508 GBP
Retailer 6£12,897 GBP
Retailer 10£13,691 GBP
Retailer 11£14,196 GBP
Retailer 5£14,391 GBP
Retailer 9£15,986 GBP
Retailer 3£23,401 GBP
Retailer 8£24,759 GBP
With Clarity£32,091 GBP

19 data points across 12 retailers

13 retailers£8,074 GBP to £32,091 GBP

A
Cheapest Retailer
-
£8,074 GBP
$10,818 USD
A
Retailer 2
-
£8,598 GBP
HK$90,000 HKD
View
A
Retailer 3
-
£8,901 GBP
$11,927 USD
View
A
Retailer 4
-
£9,508 GBP
View
A
Retailer 5
-
£12,897 GBP
$17,280 USD
View
A
Retailer 6
-
£13,691 GBP
View
Retailer 7
-
£14,196 GBP
€18,115 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£14,391 GBP
$19,283 USD
View
B+
Retailer 9
-
£15,986 GBP
ZAR 346,025 ZAR
View
B+
Retailer 10
-
£17,095 GBP
$22,905 USD
View
B
Retailer 11
-
£23,401 GBP
$31,354 USD
View
B
Retailer 12
-
£24,759 GBP
$33,175 USD
View
Most Expensive
B
With Clarity
828681283 · Oct 31
£32,091 GBP
$42,998 USD
View
12 more retailers have this diamond
Prices start from £8,074 GBPSave up to £24,017 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
5.09ct Radiant
£8,074 GBP