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Round|Lab Grown|IGI

1.05ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG792619617

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792619617

Diamond specifications and retailer prices

From £357 GBP
As of November 5, 2026
10 retailers carry this diamond
Most expensive: £618 GBP at MOH London · As of October 8, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792619617 or 792619617. Listed at 10 retailers as of November 5, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.05
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792619617
Dimensions6.58 × 6.56 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.56 mm1.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792619617
Side View
Table 56.0%Crown 33.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £618 GBP|Low: £100 GBP|High: £620 GBP|Avg: £278 GBP|+2.5%
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
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Retailer 17
October 8, 2026
Retailer 17£101 GBP
Retailer 16£117 GBP
Retailer 12£123 GBP
Retailer 5£131 GBP
Retailer 15£131 GBP
Retailer 10£215 GBP
Retailer 9£238 GBP
Retailer 14£244 GBP
Retailer 2£295 GBP
Retailer 13£305 GBP
Retailer 3£316 GBP
Retailer 11£357 GBP
Retailer 4£363 GBP
Retailer 7£370 GBP
Retailer 6£421 GBP
Retailer 8£462 GBP
MOH London£618 GBP

17 data points across 17 retailers

10 retailers

Retailer 1
-
£101 GBP
Price last confirmed 29 days ago
Retailer 2
-
£123 GBP
View
Price last confirmed 31 days ago
Retailer 3
-
£131 GBP
View
Price last confirmed 29 days ago
Retailer 4
-
£131 GBP
View
Price last confirmed 33 days ago
Retailer 5
-
£316 GBP
View
Price last confirmed 30 days ago
B
Retailer 6
-
£357 GBP
View
Retailer 7
-
£363 GBP
View
Price last confirmed 29 days ago
Retailer 8
-
£421 GBP
View
Price last confirmed 34 days ago
Retailer 9
-
£462 GBP
View
Price last confirmed 29 days ago
Most Expensive
MOH London
LG792619617 · Oct 8
£618 GBP
View
Price last confirmed 29 days ago
9 more retailers have this diamond
Prices start from £357 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
1.05ct Round
£357 GBP