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Round|Lab Grown|IGI

0.51ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG830604778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830604778

Diamond specifications and retailer prices

From £104 GBP
As of November 4, 2026
Save £417 GBP (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,015 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830604778 or 830604778. Listed at 8 retailers as of November 4, 2026, with a 401% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830604778
Dimensions5.20 × 5.18 × 3.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.20 mm5.18 mm0.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830604778
Side View
Table 59.0%Crown 32.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.3%

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 4
Current: £1,015 GBP|Low: £104 GBP|High: £1,021 GBP|Avg: £324 GBP|+54.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3£104 GBP
Retailer 7£151 GBP
Retailer 9£162 GBP
Retailer 2£202 GBP
Retailer 8£218 GBP
Retailer 5£276 GBP
Retailer 4£290 GBP
Retailer 6£521 GBP
MOH London£1,015 GBP

17 data points across 9 retailers

8 retailers£104 GBP to £521 GBP

A
Cheapest Retailer
-
£104 GBP
B+
Retailer 2
-
£151 GBP
View
B+
Retailer 3
-
£202 GBP
View
Retailer 4
-
£218 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£276 GBP
View
Price last confirmed 7 days ago
B
Retailer 6
-
£290 GBP
View
B
Retailer 7
-
£521 GBP
View
Most Expensive
MOH London
LG830604778 · Nov 2
£1,015 GBP
View
Price under review
7 more retailers have this diamond
Prices start from £104 GBPSave up to £417 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
0.51ct Round
£104 GBP