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Radiant|Lab Grown|IGI

15.03ct E VS2 Radiant Lab Grown Diamond

ID • E/VS2 • IGI LG659423107

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

Certificate IGI LG659423107

Diamond specifications and retailer prices

From £2,498 GBP
$3,347 USD
As of October 31, 2026
Save £17,937 GBP (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £20,435 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.03ct lab-grown radiant diamond

This 15.03ct 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 LG659423107 or 659423107. Listed at 17 retailers as of October 31, 2026, with prices from £2,498 to £20,435, a £17,937 spread on the same certified stone. Brilliant Earth lists it at £20,435. 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

15.03
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659423107
Dimensions17.10 × 11.88 × 8.28 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.10 mm11.88 mm15.03 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659423107
Side View
Table 68.0%Crown 49°Girdle: STK-THKPavilion 34.1°Culet: NoneDepth 69.7%

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: £20,435 GBP|Low: £2,141 GBP|High: £20,435 GBP|Avg: £5,847 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
Retailer 16
November 1, 2026
Retailer 15£2,230 GBP
Retailer 5£2,498 GBP
Retailer 4£2,587 GBP
Retailer 16£2,587 GBP
Retailer 11£2,590 GBP
Retailer 6£2,928 GBP
Retailer 3£3,000 GBP
Retailer 9£3,467 GBP
Retailer 12£3,696 GBP
Retailer 13£3,717 GBP
Retailer 10£3,917 GBP
Retailer 2£8,261 GBP
Retailer 8£9,007 GBP
Retailer 7£12,017 GBP
Retailer 14£18,144 GBP
Brilliant Earth£20,435 GBP

45 data points across 16 retailers

17 retailers£2,498 GBP to £20,435 GBP

Retailer 1
-
£2,230 GBP
$2,988 USD
Price last confirmed 23 days ago
Retailer 2
-
£2,426 GBP
$3,251 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
£2,498 GBP
$3,347 USD
View
Final sale: no returns
Retailer 4
-
£2,587 GBP
$3,466 USD
View
Price last confirmed 21 days ago
Retailer 5
-
£2,587 GBP
$3,466 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
£2,590 GBP
$3,470 USD
View
A
Retailer 7
-
£2,928 GBP
$3,923 USD
View
A
Retailer 8
-
£3,000 GBP
HK$31,400 HKD
View
A
Retailer 9
-
£3,467 GBP
View
A
Retailer 10
-
£3,696 GBP
$4,952 USD
View
A
Retailer 11
-
£3,717 GBP
$4,980 USD
View
A
Retailer 12
-
£3,917 GBP
€4,999 EUR
View
B+
Retailer 13
-
£8,261 GBP
A$17,028 AUD
View
Retailer 14
-
£9,007 GBP
$12,069 USD
View
Price last confirmed 13 days ago
B
Retailer 15
-
£12,017 GBP
$16,101 USD
View
Retailer 16
-
£18,144 GBP
$24,311 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
16206947A · Oct 31
£20,435 GBP
$27,380 USD
View
16 more retailers have this diamond
Prices start from £2,498 GBPSave up to £17,937 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
15.03ct Radiant
£2,498 GBP