CaratHunter
Plans
Round|Lab Grown|IGI

0.51ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG846661248

Shape and cutting style on the report: Round brilliant

Certificate IGI LG846661248

Diamond specifications and retailer prices

From £111 GBP
As of November 4, 2026
Save £292 GBP (72%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £808 GBP at MOH London · As of November 1, 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 LG846661248 or 846661248. Listed at 11 retailers as of November 4, 2026, with a 262% 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 angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846661248
Dimensions5.13 × 5.10 × 3.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.13 mm5.10 mm0.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846661248
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 40.8°CuletDepth 61.8%

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 4
Current: £808 GBP|Low: £111 GBP|High: £970 GBP|Avg: £300 GBP|-16.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 4£111 GBP
Retailer 8£132 GBP
Retailer 3£133 GBP
Retailer 2£188 GBP
Retailer 6£193 GBP
Retailer 7£201 GBP
Retailer 5£218 GBP
Retailer 9£279 GBP
Retailer 10£354 GBP
Retailer 11£403 GBP
MOH London£808 GBP

22 data points across 11 retailers

11 retailers£111 GBP to £403 GBP

A
Cheapest Retailer
-
£111 GBP
A
Retailer 2
-
£132 GBP
View
A
Retailer 3
-
£133 GBP
View
B+
Retailer 4
-
£188 GBP
View
B+
Retailer 5
-
£193 GBP
View
B+
Retailer 6
-
£201 GBP
View
B+
Retailer 7
-
£218 GBP
View
B
Retailer 8
-
£279 GBP
View
B
Retailer 9
-
£354 GBP
View
B
Retailer 10
-
£403 GBP
View
Most Expensive
MOH London
LG846661248 · Nov 1
£808 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £111 GBPSave up to £292 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
£111 GBP