CaratHunter
Plans
Radiant|Lab Grown|IGI

15.91ct F VS2 Radiant Lab Grown Diamond

EX • F/VS2 • IGI LG848623815

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

Certificate IGI LG848623815

Diamond specifications and retailer prices

From £2,459 GBP
$3,300 USD
As of November 1, 2026
Save £7,750 GBP (76%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £10,209 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.91ct lab-grown radiant diamond

This 15.91ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848623815 or 848623815. Listed at 3 retailers as of October 31, 2026, with prices from £2,459 to £10,209, a £7,750 spread on the same certified stone. Brilliant Earth lists it at £10,209. 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

15.91
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848623815
Dimensions17.94 × 12.44 × 8.16 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.94 mm12.44 mm15.91 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848623815
Side View
Table 66.0%Crown 45.6°Girdle: MediumPavilion 34.4°Culet: NoneDepth 65.6%

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 1
Current: £10,209 GBP|Low: £2,459 GBP|High: £10,209 GBP|Avg: £5,913 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£2,459 GBP
Retailer 2£3,429 GBP
Brilliant Earth£10,209 GBP

11 data points across 3 retailers

3 retailers£2,459 GBP to £10,209 GBP

A
Cheapest Retailer
-
£2,459 GBP
$3,300 USD
Final sale: no returns
A
Retailer 2
-
£3,429 GBP
View
Most Expensive
B
Brilliant Earth
22238205A · Oct 31
£10,209 GBP
$13,700 USD
View
2 more retailers have this diamond
Prices start from £2,459 GBPSave up to £7,750 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
15.91ct Radiant
£2,459 GBP