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Round|Lab Grown|IGI

1.29ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG804642669

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642669

Diamond specifications and retailer prices

From £158 GBP
As of November 3, 2026
Save £627 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £785 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct 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 LG804642669 or 804642669. Listed at 18 retailers as of November 2, 2026, with prices from £158 to £785, a £627 spread on the same certified stone. MOH London lists it at £785. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642669
Dimensions7.05 × 7.07 × 4.23 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
7.05 mm7.07 mm1.29 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642669
Side View
Table 58.0%Crown 32.9°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £785 GBP|Low: £152 GBP|High: £794 GBP|Avg: £419 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 4, 2026
Retailer 13£158 GBP
Retailer 4£196 GBP
Retailer 14£196 GBP
Retailer 15£336 GBP
Retailer 11£338 GBP
Retailer 6£342 GBP
Retailer 9£356 GBP
Retailer 3£378 GBP
Retailer 2£385 GBP
Retailer 12£474 GBP
Retailer 10£479 GBP
Retailer 8£631 GBP
Retailer 7£668 GBP
Retailer 5£711 GBP
MOH London£785 GBP

30 data points across 15 retailers

18 retailers£158 GBP to £785 GBP

A
Cheapest Retailer
-
£158 GBP
A
Retailer 2
-
£183 GBP
View
Retailer 3
-
£196 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£196 GBP
View
A
Retailer 5
-
£336 GBP
View
A
Retailer 6
-
£338 GBP
View
A
Retailer 7
-
£342 GBP
View
A
Retailer 8
-
£356 GBP
View
A
Retailer 9
-
£378 GBP
View
A
Retailer 10
-
£385 GBP
View
B+
Retailer 11
-
£474 GBP
View
A
Retailer 12
-
£479 GBP
View
B+
Retailer 13
-
£513 GBP
View
B+
Retailer 14
-
£629 GBP
View
B+
Retailer 15
-
£631 GBP
View
B
Retailer 16
-
£668 GBP
View
B+
Retailer 17
-
£726 GBP
View
Most Expensive
B+
MOH London
LG804642669 · Nov 2
£785 GBP
View
17 more retailers have this diamond
Prices start from £158 GBPSave up to £627 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
1.29ct Round
£158 GBP