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Round|Lab Grown|IGI

1.30ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG519231059

Shape and cutting style on the report: Round brilliant

Certificate IGI LG519231059

Diamond specifications and retailer prices

From £291 GBP
As of November 4, 2026
Save £472 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £763 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG519231059 or 519231059. Listed at 6 retailers as of November 4, 2026, with prices from £291 to £763, a £472 spread on the same certified stone. MOH London lists it at £763. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519231059
Dimensions6.96 × 6.93 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.96 mm6.93 mm1.30 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519231059
Side View
Table 57.5%Crown 35°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £763 GBP|Low: £291 GBP|High: £766 GBP|Avg: £463 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4£291 GBP
Retailer 3£337 GBP
Retailer 5£350 GBP
Retailer 8£356 GBP
Retailer 2£426 GBP
Retailer 7£545 GBP
Retailer 6£566 GBP
MOH London£763 GBP

6 data points across 8 retailers

6 retailers£291 GBP to £763 GBP

A
Cheapest Retailer
-
£291 GBP
A
Retailer 2
-
£337 GBP
View
A
Retailer 3
-
£350 GBP
View
A
Retailer 4
-
£426 GBP
View
B+
Retailer 5
-
£566 GBP
View
Most Expensive
B+
MOH London
LG519231059 · Nov 5
£763 GBP
View
5 more retailers have this diamond
Prices start from £291 GBPSave up to £472 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
1.30ct Round
£291 GBP