CaratHunter
Plans
Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG762545868

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

Certificate IGI LG762545868

Diamond specifications and retailer prices

From £5,874 GBP
$7,871 USD
As of October 31, 2026
Save £18,885 GBP (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £24,759 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG762545868 or 762545868. Listed at 12 retailers as of October 30, 2026, with prices from £5,874 to £24,759, a £18,885 spread on the same certified stone. Taylor and Hart lists it at £24,759. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545868
Dimensions12.16 × 8.71 × 5.61 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
12.16 mm8.71 mm5.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545868
Side View
Table 64.0%Crown 41.1°Girdle: MediumPavilion 34.3°Culet: NoneDepth 64.4%

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: £5,874 GBP|High: £26,382 GBP|Avg: £13,614 GBP|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
October 31, 2026
Retailer 4£5,874 GBP
Retailer 5£6,315 GBP
Retailer 10£7,292 GBP
Retailer 7£8,636 GBP
Retailer 11£8,884 GBP
Retailer 1£9,508 GBP
Retailer 6£12,613 GBP
Retailer 8£13,691 GBP
Retailer 9£14,196 GBP
Retailer 2£18,661 GBP
Retailer 3£23,401 GBP
Taylor and Hart£24,759 GBP

36 data points across 12 retailers

12 retailers£5,874 GBP to £24,759 GBP

A
Cheapest Retailer
-
£5,874 GBP
$7,871 USD
A
Retailer 2
-
£6,315 GBP
$8,461 USD
View
A
Retailer 3
-
£7,292 GBP
$9,770 USD
View
A
Retailer 4
-
£8,636 GBP
HK$90,400 HKD
View
A
Retailer 5
-
£8,884 GBP
$11,903 USD
View
A
Retailer 6
-
£9,508 GBP
View
A
Retailer 7
-
£12,613 GBP
$16,900 USD
View
A
Retailer 8
-
£13,691 GBP
View
Retailer 9
-
£14,196 GBP
€18,115 EUR
View
Price last confirmed 8 days ago
Retailer 10
-
£18,661 GBP
A$38,467 AUD
View
Price last confirmed 22 days ago
B
Retailer 11
-
£23,401 GBP
$31,354 USD
View
Most Expensive
B
Taylor and Hart
0CYXZR4 · Oct 30
£24,759 GBP
$33,175 USD
View
11 more retailers have this diamond
Prices start from £5,874 GBPSave up to £18,885 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
£5,874 GBP