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Round|Lab Grown|IGI

0.51ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG772603179

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772603179

Diamond specifications and retailer prices

From £148 GBP
$198 USD
As of November 1, 2026
Save £205 GBP (58%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £905 GBP at MOH London · As of October 26, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG772603179 or 772603179. Listed at 4 retailers as of October 31, 2026, with a 139% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772603179
Dimensions5.18 × 5.14 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.18 mm5.14 mm0.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772603179
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £905 GBP|Low: £148 GBP|High: £915 GBP|Avg: £319 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Retailer 3£148 GBP
Retailer 5£175 GBP
Retailer 6£194 GBP
Retailer 2£279 GBP
Retailer 4£353 GBP
MOH London£905 GBP

8 data points across 6 retailers

4 retailers£148 GBP to £353 GBP

B+
Cheapest Retailer
-
£148 GBP
$198 USD
B
Retailer 2
-
£279 GBP
$374 USD
View
B
Retailer 3
-
£353 GBP
$473 USD
View
Most Expensive
MOH London
LG772603179 · Oct 26
£905 GBP
View
Price under review
3 more retailers have this diamond
Prices start from £148 GBPSave up to £205 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
£148 GBP