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Cushion|Lab Grown|IGI

1.01ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG791644907

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG791644907

Diamond specifications and retailer prices

From £149 GBP
As of November 6, 2026
Save £692 GBP (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £842 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 LG791644907 or 791644907. Listed at 9 retailers as of November 6, 2026, with prices from £149 to £842, a £692 spread on the same certified stone. Reve Diamonds lists it at £842. 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
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791644907
Dimensions7.02 × 5.13 × 3.49 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.02 mm5.13 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791644907
Side View
Table 54.0%Crown 41.6°Girdle: MED-STKPavilion 42.2°Culet: LargeDepth 68.0%

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: £295 GBP|Low: £149 GBP|High: £842 GBP|Avg: £383 GBP|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Reve Diamonds
November 6, 2026
Retailer 3£149 GBP
Retailer 4£166 GBP
Retailer 7£233 GBP
Retailer 5£294 GBP
Retailer 1£295 GBP
Retailer 6£345 GBP
Retailer 2£773 GBP
Reve Diamonds£842 GBP

44 data points across 8 retailers

9 retailers£149 GBP to £842 GBP

A
Cheapest Retailer
-
£149 GBP
Final sale: no returns
Retailer 2
-
£166 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£233 GBP
View
B+
Retailer 4
-
£294 GBP
View
A
Retailer 5
-
£295 GBP
View
B+
Retailer 6
-
£345 GBP
View
B
Retailer 7
-
£573 GBP
View
B
Retailer 8
-
£773 GBP
View
Most Expensive
B
Reve Diamonds
88A8C15F0 · Nov 6
£842 GBP
$1,127 USD
View
8 more retailers have this diamond
Prices start from £149 GBPSave up to £692 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
£149 GBP