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Round|Lab Grown|IGI

1.29ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG783646817

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783646817

Diamond specifications and retailer prices

From £474 GBP
As of November 4, 2026
11 retailers carry this diamond
Most expensive: £794 GBP at MOH London · As of October 11, 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 LG783646817 or 783646817. Listed at 11 retailers as of November 4, 2026. 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 angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783646817
Dimensions7.06 × 7.02 × 4.28 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
7.06 mm7.02 mm1.29 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783646817
Side View
Table 57.0%Crown 33.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £794 GBP|Low: £152 GBP|High: £794 GBP|Avg: £417 GBP|+1.1%
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
October 11, 2026
Retailer 2£158 GBP
Retailer 4£196 GBP
Retailer 12£196 GBP
Retailer 9£336 GBP
Retailer 13£336 GBP
Retailer 6£342 GBP
Retailer 8£342 GBP
Retailer 15£378 GBP
Retailer 11£396 GBP
Retailer 3£459 GBP
Retailer 10£474 GBP
Retailer 14£475 GBP
Retailer 7£668 GBP
Retailer 5£711 GBP
MOH London£794 GBP

16 data points across 15 retailers

11 retailers

Retailer 1
-
£158 GBP
Price last confirmed 26 days ago
Retailer 2
-
£183 GBP
View
Price last confirmed 27 days ago
Retailer 3
-
£196 GBP
View
Price last confirmed 34 days ago
Retailer 4
-
£196 GBP
View
Price last confirmed 24 days ago
Retailer 5
-
£336 GBP
View
Price last confirmed 24 days ago
Retailer 6
-
£336 GBP
View
Price last confirmed 28 days ago
Retailer 7
-
£396 GBP
View
Price last confirmed 29 days ago
B+
Retailer 8
-
£474 GBP
View
Retailer 9
-
£629 GBP
View
Price last confirmed 36 days ago
Retailer 10
-
£668 GBP
View
Price last confirmed 25 days ago
Most Expensive
MOH London
LG783646817 · Oct 11
£794 GBP
View
Price last confirmed 25 days ago
10 more retailers have this diamond
Prices start from £474 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+
1.29ct Round
£474 GBP