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Radiant|Lab Grown|IGI

12.55ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG824618732

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

Certificate IGI LG824618732

Diamond specifications and retailer prices

From £2,070 GBP
HK$21,700 HKD
As of November 1, 2026
Save £5,395 GBP (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £7,465 GBP at Adiamor · As of November 2, 2026
View at Adiamor

About this 12.55ct lab-grown radiant diamond

This 12.55ct 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 LG824618732 or 824618732. Listed at 9 retailers as of November 1, 2026, with prices from £2,070 to £7,465, a £5,395 spread on the same certified stone. Adiamor lists it at £7,465. 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

12.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG824618732
Dimensions17.22 × 11.64 × 7.35 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.22 mm11.64 mm12.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG824618732
Side View
Table 68.0%Crown 45.6°Girdle: ThinPavilion 34.2°Culet: NoneDepth 63.1%

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: £7,465 GBP|Low: £1,994 GBP|High: £7,465 GBP|Avg: £4,519 GBP|+0.3%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8£2,070 GBP
Retailer 2£2,397 GBP
Retailer 6£2,748 GBP
Retailer 4£2,778 GBP
Retailer 5£4,430 GBP
Retailer 9£6,148 GBP
Retailer 7£6,563 GBP
Retailer 3£6,676 GBP
Adiamor£7,465 GBP

41 data points across 9 retailers

9 retailers£2,070 GBP to £7,465 GBP

A
Cheapest Retailer
-
£2,070 GBP
HK$21,700 HKD
A
Retailer 2
-
£2,397 GBP
View
B+
Retailer 3
-
£2,748 GBP
$3,688 USD
View
A
Retailer 4
-
£2,778 GBP
€3,550 EUR
View
B+
Retailer 5
-
£4,430 GBP
$5,945 USD
View
B
Retailer 6
-
£6,148 GBP
$8,250 USD
View
B
Retailer 7
-
£6,563 GBP
$8,807 USD
View
B
Retailer 8
-
£6,676 GBP
A$13,783 AUD
View
Most Expensive
B
Adiamor
D-81604679 · Nov 2
£7,465 GBP
$10,018 USD
View
8 more retailers have this diamond
Prices start from £2,070 GBPSave up to £5,395 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
12.55ct Radiant
£2,070 GBP