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Radiant|Lab Grown|IGI

8.21ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG844631659

Certificate IGI LG844631659

Diamond specifications and retailer prices

From £1,410 GBP
$1,892 USD
As of November 1, 2026
Save £3,534 GBP (71%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,944 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 8.21ct lab-grown radiant diamond

This 8.21ct 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 LG844631659 or 844631659. Listed at 4 retailers as of November 1, 2026, with prices from £1,410 to £4,944, a £3,534 spread on the same certified stone. The Diamond Guys lists it at £4,944. 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

8.21
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG844631659
Dimensions14.33 × 9.96 × 6.68 mm
L/W Ratio1.44
Top View
14.33 mm9.96 mm8.21 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844631659
Side View
Table 67.0%CrownGirdle: MediumPavilionCulet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,803 GBP|Low: £1,410 GBP|High: £4,944 GBP|Avg: £2,570 GBP
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
November 2, 2026
Retailer 2£1,410 GBP
Retailer 3£1,682 GBP
Retailer 1£2,803 GBP
The Diamond Guys£4,944 GBP

3 data points across 4 retailers

4 retailers£1,410 GBP to £4,944 GBP

B+
Cheapest Retailer
-
£1,410 GBP
$1,892 USD
A
Retailer 2
-
£1,682 GBP
€2,150 EUR
View
B+
Retailer 3
-
£2,803 GBP
CA$5,223 CAD
View
Most Expensive
B
The Diamond Guys
1998511674 · Nov 1
£4,944 GBP
$6,634 USD
View
3 more retailers have this diamond
Prices start from £1,410 GBPSave up to £3,534 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
8.21ct Radiant
£1,410 GBP