Round|Lab Grown|IGI

1.05ct H SI1 Round Lab Grown Diamond

GD • H/SI1 • IGI LG818650076

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818650076

Diamond specifications and retailer prices

From £97 GBP
$130 USD
As of October 26, 2026
Save £905 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,002 GBP at MOH London · As of October 26, 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 SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG818650076 or 818650076. Listed at 15 retailers as of October 26, 2026, with prices from £97 to £1,002, a £905 spread on the same certified stone. MOH London lists it at £1,002. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818650076
Dimensions6.68 × 6.60 × 2.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
6.68 mm6.60 mm1.05 ctH / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818650076
Side View
Table 69.0%Crown 35°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 56.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £1,002 GBP|Low: £102 GBP|High: £1,002 GBP|Avg: £365 GBP|+57.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 6£107 GBP
Retailer 9£116 GBP
Retailer 11£134 GBP
Retailer 10£143 GBP
Retailer 8£163 GBP
Retailer 7£212 GBP
Retailer 5£222 GBP
Retailer 4£407 GBP
Retailer 3£582 GBP
Retailer 2£723 GBP
MOH London£1,002 GBP

22 data points across 11 retailers

15 retailers£97 GBP to £1,002 GBP

Retailer 1
-
£91 GBP
$122 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
£97 GBP
$130 USD
View
Retailer 3
-
£116 GBP
$155 USD
View
Price last confirmed 20 days ago
Retailer 4
-
£120 GBP
$161 USD
View
Price last confirmed 16 days ago
Retailer 5
-
£134 GBP
$180 USD
View
Price last confirmed 21 days ago
Retailer 6
-
£143 GBP
$192 USD
View
Price last confirmed 28 days ago
B
Retailer 7
-
£163 GBP
$218 USD
View
B+
Retailer 8
-
£212 GBP
€271 EUR
View
B+
Retailer 9
-
£222 GBP
$297 USD
View
Retailer 10
-
£280 GBP
$375 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£363 GBP
$486 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
£407 GBP
$545 USD
View
Retailer 13
-
£460 GBP
$617 USD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£723 GBP
$969 USD
View
Most Expensive
B
MOH London
LG818650076 · Oct 26
£1,002 GBP
View
14 more retailers have this diamond
Prices start from £97 GBPSave up to £905 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
£97 GBP