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Radiant|Lab Grown|IGI

15.05ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG818611981

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

Certificate IGI LG818611981

Diamond specifications and retailer prices

From £2,284 GBP
$3,065 USD
As of November 2, 2026
Save £8,371 GBP (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £10,655 GBP at Adiamor · As of November 2, 2026
View at Adiamor

About this 15.05ct lab-grown radiant diamond

This 15.05ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818611981 or 818611981. Listed at 12 retailers as of November 2, 2026, with prices from £2,284 to £10,655, a £8,371 spread on the same certified stone. Adiamor lists it at £10,655. 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

15.05
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818611981
Dimensions17.98 × 12.16 × 7.84 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.98 mm12.16 mm15.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818611981
Side View
Table 70.0%Crown 42.5°Girdle: MediumPavilion 35.9°Culet: NoneDepth 64.5%

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: Nov 2
Current: £3,571 GBP|Low: £2,284 GBP|High: £8,213 GBP|Avg: £4,275 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£2,284 GBP
Retailer 10£2,655 GBP
Retailer 4£3,057 GBP
Retailer 9£3,349 GBP
Retailer 8£3,533 GBP
Retailer 3£3,553 GBP
Retailer 1£3,571 GBP
Retailer 5£4,229 GBP
Retailer 6£8,003 GBP
Retailer 2£8,213 GBP

43 data points across 10 retailers

12 retailers£2,284 GBP to £10,655 GBP

A
Cheapest Retailer
-
£2,284 GBP
$3,065 USD
A
Retailer 2
-
£2,655 GBP
$3,563 USD
View
A
Retailer 3
-
£3,057 GBP
View
A
Retailer 4
-
£3,349 GBP
$4,494 USD
View
A
Retailer 5
-
£3,533 GBP
ZAR 76,594 ZAR
View
A
Retailer 6
-
£3,553 GBP
$4,768 USD
View
A
Retailer 7
-
£3,571 GBP
€4,564 EUR
View
B+
Retailer 8
-
£4,229 GBP
A$8,730 AUD
View
B
Retailer 9
-
£7,958 GBP
$10,680 USD
View
B
Retailer 10
-
£8,003 GBP
A$16,522 AUD
View
B
Retailer 11
-
£8,380 GBP
$11,246 USD
View
Most Expensive
B
Adiamor
D-81080385 · Nov 2
£10,655 GBP
$14,298 USD
View
11 more retailers have this diamond
Prices start from £2,284 GBPSave up to £8,371 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
15.05ct Radiant
£2,284 GBP