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Round|Lab Grown|IGI

1.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG763601639

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763601639

Diamond specifications and retailer prices

From £152 GBP
As of November 6, 2026
Save £441 GBP (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £593 GBP at MOH London · As of November 4, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG763601639 or 763601639. Listed at 9 retailers as of November 4, 2026, with prices from £152 to £593, a £441 spread on the same certified stone. MOH London lists it at £593. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763601639
Dimensions6.57 × 6.54 × 4.01 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
6.57 mm6.54 mm1.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763601639
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.1%

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 6
Current: £593 GBP|Low: £175 GBP|High: £601 GBP|Avg: £302 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£175 GBP
Retailer 3£213 GBP
Retailer 2£244 GBP
Retailer 6£286 GBP
Retailer 5£311 GBP
MOH London£593 GBP

45 data points across 6 retailers

9 retailers£152 GBP to £593 GBP

A
Cheapest Retailer
-
£152 GBP
B+
Retailer 2
-
£175 GBP
View
A
Retailer 3
-
£213 GBP
View
A
Retailer 4
-
£214 GBP
View
A
Retailer 5
-
£244 GBP
View
Retailer 6
-
£286 GBP
View
Price last confirmed 65 days ago
B+
Retailer 7
-
£311 GBP
View
B
Retailer 8
-
£450 GBP
View
Most Expensive
B
MOH London
LG763601639 · Nov 4
£593 GBP
View
8 more retailers have this diamond
Prices start from £152 GBPSave up to £441 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
£152 GBP