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Radiant|Lab Grown|IGI

15.09ct E VS2 Radiant Lab Grown Diamond

EX • E/VS2 • IGI LG792635412

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

Certificate IGI LG792635412

Diamond specifications and retailer prices

From £2,841 GBP
As of October 30, 2026
Save £17,676 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £20,517 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.09ct lab-grown radiant diamond

This 15.09ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG792635412 or 792635412. Listed at 17 retailers as of October 30, 2026, with prices from £2,841 to £20,517, a £17,676 spread on the same certified stone. Brilliant Earth lists it at £20,517. 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

15.09
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792635412
Dimensions16.99 × 12.24 × 8.33 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.99 mm12.24 mm15.09 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792635412
Side View
Table 66.0%Crown 46.9°Girdle: Slightly ThickPavilion 36.1°Culet: NoneDepth 68.1%

Caratlytics Score

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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: £20,517 GBP|Low: £2,831 GBP|High: £20,517 GBP|Avg: £6,510 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 10£2,841 GBP
Retailer 15£3,040 GBP
Retailer 14£3,186 GBP
Retailer 11£3,456 GBP
Retailer 3£3,526 GBP
Retailer 9£3,567 GBP
Retailer 4£4,165 GBP
Retailer 13£4,240 GBP
Retailer 2£4,596 GBP
Retailer 12£5,228 GBP
Retailer 8£5,442 GBP
Retailer 7£9,795 GBP
Retailer 6£12,453 GBP
Retailer 5£12,526 GBP
Brilliant Earth£20,517 GBP

36 data points across 15 retailers

17 retailers£2,841 GBP to £20,517 GBP

A
Cheapest Retailer
-
£2,841 GBP
A
Retailer 2
-
£3,040 GBP
$4,073 USD
View
A
Retailer 3
-
£3,186 GBP
$4,269 USD
View
A
Retailer 4
-
£3,456 GBP
$4,631 USD
View
Final sale: no returns
A
Retailer 5
-
£3,526 GBP
$4,725 USD
View
A
Retailer 6
-
£3,567 GBP
$4,780 USD
View
A
Retailer 7
-
£4,165 GBP
HK$43,600 HKD
View
A
Retailer 8
-
£4,240 GBP
$5,681 USD
View
A
Retailer 9
-
£4,596 GBP
View
Retailer 10
-
£5,228 GBP
$7,005 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£5,442 GBP
€6,944 EUR
View
B+
Retailer 12
-
£5,447 GBP
$7,298 USD
View
B
Retailer 13
-
£9,521 GBP
$12,757 USD
View
B
Retailer 14
-
£9,795 GBP
$13,125 USD
View
B
Retailer 15
-
£12,453 GBP
$16,685 USD
View
B
Retailer 16
-
£12,526 GBP
$16,783 USD
View
Most Expensive
B
Brilliant Earth
20388112A · Oct 31
£20,517 GBP
$27,490 USD
View
16 more retailers have this diamond
Prices start from £2,841 GBPSave up to £17,676 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
15.09ct Radiant
£2,841 GBP