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Radiant|Lab Grown|IGI

0.78ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG685590364

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

Certificate IGI LG685590364

Diamond specifications and retailer prices

From £357 GBP
As of November 4, 2026
Save £127 GBP (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £484 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 0.78ct lab-grown radiant diamond

This 0.78ct lab-grown radiant sits in the just-under-one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG685590364 or 685590364. Listed at 2 retailers as of November 4, 2026, with prices from £357 to £484, a £127 spread on the same certified stone. Diamond Quarter lists it at £484. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.78
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590364
Dimensions6.47 × 4.53 × 3.07 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.47 mm4.53 mm0.78 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590364
Side View
Table 63.0%Crown 39.7°Girdle: Slightly ThickPavilion 35.8°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £357 GBP|Low: £138 GBP|High: £445 GBP|Avg: £265 GBP|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
April 14, 2026
Retailer 7£152 GBP
Retailer 2£169 GBP
Retailer 8£181 GBP
Retailer 5£263 GBP
Retailer 6£276 GBP
Retailer 3£308 GBP
Retailer 1£357 GBP
Retailer 4£445 GBP

37 data points across 8 retailers

2 retailers£357 GBP to £484 GBP

B+
Cheapest Retailer
-
£357 GBP
Most Expensive
B
Diamond Quarter
0.78VS2FLG642C3FN · Nov 5
£484 GBP
View
1 more retailer has this diamond
Prices start from £357 GBPSave up to £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.

B+
0.78ct Radiant
£357 GBP