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Radiant|Lab Grown|IGI

12.25ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG848695435

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

Certificate IGI LG848695435

Diamond specifications and retailer prices

From £2,279 GBP
$3,053 USD
As of November 1, 2026
Save £7,127 GBP (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £9,406 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 12.25ct lab-grown radiant diamond

This 12.25ct 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 LG848695435 or 848695435. Listed at 5 retailers as of November 1, 2026, with prices from £2,279 to £9,406, a £7,127 spread on the same certified stone. With Clarity lists it at £9,406. 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

12.25
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848695435
Dimensions16.69 × 11.36 × 7.56 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.69 mm11.36 mm12.25 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848695435
Side View
Table 65.0%Crown 44.9°Girdle: MediumPavilion 34.3°Culet: NoneDepth 66.5%

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 1
Current: £2,925 GBP|Low: £2,279 GBP|High: £9,406 GBP|Avg: £6,047 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
With Clarity
October 31, 2026
Retailer 3£2,279 GBP
Retailer 1£2,925 GBP
Retailer 2£4,776 GBP
Retailer 4£7,769 GBP
With Clarity£9,406 GBP

4 data points across 5 retailers

5 retailers£2,279 GBP to £9,406 GBP

A
Cheapest Retailer
-
£2,279 GBP
$3,053 USD
A
Retailer 2
-
£2,925 GBP
€3,733 EUR
View
B+
Retailer 3
-
£4,776 GBP
$6,399 USD
View
B
Retailer 4
-
£7,769 GBP
$10,410 USD
View
Most Expensive
B
With Clarity
848695435 · Nov 2
£9,406 GBP
$12,603 USD
View
4 more retailers have this diamond
Prices start from £2,279 GBPSave up to £7,127 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
12.25ct Radiant
£2,279 GBP