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Round|Lab Grown|IGI

1.05ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG811646820

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811646820

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of November 1, 2026
Save £639 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £772 GBP at MOH London · As of November 1, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811646820 or 811646820. Listed at 18 retailers as of November 1, 2026, with prices from £134 to £772, a £639 spread on the same certified stone. MOH London lists it at £772. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811646820
Dimensions6.56 × 6.52 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.56 mm6.52 mm1.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811646820
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £772 GBP|Low: £128 GBP|High: £782 GBP|Avg: £374 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
November 1, 2026
Retailer 11£134 GBP
Retailer 13£165 GBP
Retailer 5£241 GBP
Retailer 2£285 GBP
Retailer 14£293 GBP
Retailer 7£306 GBP
Retailer 9£306 GBP
Retailer 3£346 GBP
Retailer 12£396 GBP
Retailer 8£403 GBP
Retailer 10£416 GBP
Retailer 6£572 GBP
Retailer 4£584 GBP
MOH London£772 GBP

28 data points across 14 retailers

18 retailers£134 GBP to £772 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£154 GBP
$207 USD
View
A
Retailer 3
-
£165 GBP
$221 USD
View
Retailer 4
-
£166 GBP
$222 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£241 GBP
$323 USD
View
A
Retailer 6
-
£285 GBP
ZAR 6,177 ZAR
View
B+
Retailer 7
-
£293 GBP
$393 USD
View
B+
Retailer 8
-
£306 GBP
€390 EUR
View
Retailer 9
-
£306 GBP
$410 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
£346 GBP
$463 USD
View
B+
Retailer 11
-
£396 GBP
$530 USD
View
B+
Retailer 12
-
£403 GBP
A$831 AUD
View
B+
Retailer 13
-
£416 GBP
$558 USD
View
Retailer 14
-
£508 GBP
$680 USD
View
Price last confirmed 46 days ago
B
Retailer 15
-
£531 GBP
$712 USD
View
B
Retailer 16
-
£572 GBP
$766 USD
View
B
Retailer 17
-
£596 GBP
$798 USD
View
Most Expensive
B
MOH London
LG811646820 · Nov 1
£772 GBP
View
17 more retailers have this diamond
Prices start from £134 GBPSave up to £639 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
1.05ct Round
£134 GBP