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Cushion|Lab Grown|IGI

1.01ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG786679939

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG786679939

Diamond specifications and retailer prices

From £218 GBP
As of November 6, 2026
Save £383 GBP (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £602 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion 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 LG786679939 or 786679939. Listed at 9 retailers as of November 4, 2026, with prices from £218 to £602, a £383 spread on the same certified stone. MOH London lists it at £602. 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

1.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786679939
Dimensions6.78 × 5.11 × 3.44 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.78 mm5.11 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG786679939
Side View
Table 65.0%Crown 38.4°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £602 GBP|Low: £129 GBP|High: £614 GBP|Avg: £294 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7£131 GBP
Retailer 2£218 GBP
Retailer 6£229 GBP
Retailer 4£241 GBP
Retailer 5£245 GBP
Retailer 3£312 GBP
Retailer 8£336 GBP
MOH London£602 GBP

42 data points across 8 retailers

9 retailers£218 GBP to £602 GBP

Retailer 1
-
£131 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£218 GBP
View
A
Retailer 3
-
£223 GBP
View
Retailer 4
-
£229 GBP
View
Price last confirmed 9 days ago
A
Retailer 5
-
£241 GBP
View
A
Retailer 6
-
£245 GBP
View
B+
Retailer 7
-
£312 GBP
View
B+
Retailer 8
-
£336 GBP
View
Most Expensive
B
MOH London
LG786679939 · Nov 4
£602 GBP
View
8 more retailers have this diamond
Prices start from £218 GBPSave up to £383 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
1.01ct Cushion
£218 GBP