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Cushion|Lab Grown|IGI

5.05ct F SI1 Cushion Lab Grown Diamond

GD • F/SI1 • IGI LG696511824

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG696511824

Diamond specifications and retailer prices

From £768 GBP
As of November 2, 2026
Save £2,168 GBP (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,936 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.05ct lab-grown cushion diamond

This 5.05ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG696511824 or 696511824. Listed at 8 retailers as of November 2, 2026, with prices from £768 to £2,936, a £2,168 spread on the same certified stone. Brilliant Earth lists it at £2,936. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.05
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696511824
Dimensions11.57 × 9.26 × 6.14 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.57 mm9.26 mm5.05 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696511824
Side View
Table 65.0%Crown 27.3°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 66.3%

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 2
Current: £2,936 GBP|Low: £523 GBP|High: £3,324 GBP|Avg: £1,207 GBP|-11.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7£523 GBP
Retailer 2£768 GBP
Retailer 9£770 GBP
Retailer 4£771 GBP
Retailer 3£805 GBP
Retailer 8£821 GBP
Retailer 6£965 GBP
Retailer 5£2,078 GBP
Brilliant Earth£2,936 GBP

38 data points across 9 retailers

8 retailers£768 GBP to £2,936 GBP

A
Cheapest Retailer
-
£768 GBP
B+
Retailer 2
-
£770 GBP
$1,033 USD
View
B+
Retailer 3
-
£771 GBP
$1,035 USD
View
A
Retailer 4
-
£805 GBP
€1,029 EUR
View
B+
Retailer 5
-
£821 GBP
$1,102 USD
View
B+
Retailer 6
-
£965 GBP
$1,295 USD
View
B
Retailer 7
-
£2,078 GBP
View
Most Expensive
C
Brilliant Earth
20358662A · Nov 2
£2,936 GBP
$3,940 USD
View
7 more retailers have this diamond
Prices start from £768 GBPSave up to £2,168 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
5.05ct Cushion
£768 GBP