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1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG735501410

Shape and cutting style on the report: Round brilliant

Certificate IGI LG735501410

Diamond specifications and retailer prices

From £99 GBP
As of November 5, 2026
Save £923 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,022 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 LG735501410 or 735501410. Listed at 14 retailers as of November 5, 2026, with prices from £99 to £1,022, a £923 spread on the same certified stone. MOH London lists it at £1,022. 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
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735501410
Dimensions6.57 × 6.61 × 4.01 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
6.57 mm6.61 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735501410
Side View
Table 55.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.9%

Caratlytics Score

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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 5
Current: £1,022 GBP|Low: £99 GBP|High: £1,187 GBP|Avg: £342 GBP|-0.3%
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
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Retailer 16
November 6, 2026
Retailer 13£99 GBP
Retailer 12£115 GBP
Retailer 6£123 GBP
Retailer 4£143 GBP
Retailer 2£203 GBP
Retailer 16£215 GBP
Retailer 14£219 GBP
Retailer 3£233 GBP
Retailer 9£241 GBP
Retailer 10£293 GBP
Retailer 15£307 GBP
Retailer 5£395 GBP
Retailer 11£417 GBP
Retailer 7£566 GBP
Retailer 8£758 GBP
MOH London£1,022 GBP

12 data points across 16 retailers

14 retailers£99 GBP to £1,022 GBP

A
Cheapest Retailer
-
£99 GBP
A
Retailer 2
-
£115 GBP
View
A
Retailer 3
-
£123 GBP
View
A
Retailer 4
-
£143 GBP
View
A
Retailer 5
-
£203 GBP
View
A
Retailer 6
-
£215 GBP
View
Retailer 7
-
£219 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£233 GBP
View
A
Retailer 9
-
£241 GBP
View
B+
Retailer 10
-
£293 GBP
View
B+
Retailer 11
-
£307 GBP
View
B+
Retailer 12
-
£395 GBP
View
B
Retailer 13
-
£417 GBP
View
Most Expensive
B
MOH London
LG735501410 · Nov 5
£1,022 GBP
View
13 more retailers have this diamond
Prices start from £99 GBPSave up to £923 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
£99 GBP