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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG783635054

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783635054

Diamond specifications and retailer prices

From £114 GBP
As of November 5, 2026
Save £940 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,054 GBP at MOH London · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783635054 or 783635054. Listed at 17 retailers as of November 5, 2026, with prices from £114 to £1,054, a £940 spread on the same certified stone. MOH London lists it at £1,054. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783635054
Dimensions6.60 × 6.66 × 3.96 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
6.60 mm6.66 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG783635054
Side View
Table 60.0%Crown 33.3°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 59.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £1,054 GBP|Low: £103 GBP|High: £1,054 GBP|Avg: £278 GBP|+64.7%
MOH London
Retailer 2
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November 6, 2026
Retailer 5£103 GBP
Retailer 11£114 GBP
Retailer 3£120 GBP
Retailer 4£128 GBP
Retailer 15£143 GBP
Retailer 10£212 GBP
Retailer 13£219 GBP
Retailer 17£224 GBP
Retailer 12£237 GBP
Retailer 2£248 GBP
Retailer 8£308 GBP
Retailer 7£311 GBP
Retailer 14£321 GBP
Retailer 16£348 GBP
Retailer 9£371 GBP
Retailer 6£412 GBP
MOH London£1,054 GBP

41 data points across 17 retailers

17 retailers£114 GBP to £1,054 GBP

Retailer 1
-
£103 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
£114 GBP
View
Final sale: no returns
Retailer 3
-
£120 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
£128 GBP
View
Price last confirmed 14 days ago
A
Retailer 5
-
£143 GBP
View
A
Retailer 6
-
£212 GBP
View
A
Retailer 7
-
£219 GBP
View
A
Retailer 8
-
£224 GBP
View
A
Retailer 9
-
£237 GBP
View
A
Retailer 10
-
£248 GBP
View
Retailer 11
-
£308 GBP
View
Price last confirmed 30 days ago
Retailer 12
-
£311 GBP
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£321 GBP
View
B+
Retailer 14
-
£348 GBP
View
B+
Retailer 15
-
£371 GBP
View
Retailer 16
-
£412 GBP
View
Price last confirmed 13 days ago
Most Expensive
C
MOH London
LG783635054 · Nov 5
£1,054 GBP
View
16 more retailers have this diamond
Prices start from £114 GBPSave up to £940 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
£114 GBP