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Round|Lab Grown|IGI

0.51ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG839617153

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839617153

Diamond specifications and retailer prices

From £111 GBP
As of October 30, 2026
Save £198 GBP (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £652 GBP at MOH London · As of October 29, 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 LG839617153 or 839617153. Listed at 9 retailers as of October 30, 2026, with a 177% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839617153
Dimensions5.13 × 5.08 × 3.17 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 mm5.08 mm0.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839617153
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £652 GBP|Low: £97 GBP|High: £652 GBP|Avg: £277 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4£97 GBP
Retailer 9£111 GBP
Retailer 2£167 GBP
Retailer 5£201 GBP
Retailer 3£236 GBP
Retailer 8£267 GBP
Retailer 7£309 GBP
Retailer 10£369 GBP
Retailer 6£415 GBP
MOH London£652 GBP

16 data points across 10 retailers

9 retailers£111 GBP to £309 GBP

Retailer 1
-
£97 GBP
Price last confirmed 11 days ago
B+
Retailer 2
-
£111 GBP
View
B+
Retailer 3
-
£167 GBP
View
B+
Retailer 4
-
£201 GBP
View
B+
Retailer 5
-
£212 GBP
View
B
Retailer 6
-
£267 GBP
View
B
Retailer 7
-
£309 GBP
View
Retailer 8
-
£415 GBP
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG839617153 · Oct 29
£652 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from £111 GBPSave up to £198 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+
0.51ct Round
£111 GBP