10.35ct Fancy Deep Brown-Yellow Old Mine Cushion Diamond and 22ct Gold Ring

A striking old-cut fancy colour diamond and yellow gold ring by Hancocks, centred with a wonderful cushion shaped old mine cushion cut diamond weighing 10.35ct and of Fancy Deep Brown-Yellow colour and SI1 clarity, bezel set within a finely hand crafted 22ct yellow gold mount with knife edge band and softly brushed satin finish.

Further Details

Gemstones10.35ct Fancy Deep Brown-Yellow VS1 old mine brilliant cut diamond with GIA certificate
Condition ReportNew
Setting22ct yellow gold with maker's mark and London assay marks
Weight description18 grams
DimensionsUK finger size M, US size 6.25
Head 16mm x 15mm
Band 2.6mm wide

Directors Notes

Old mine brilliants or old miners are either square or rectangular cushion shaped diamonds with clearly rounded corners and sides.  The style developed after the discovery of diamonds in Brazil in about 1725 which facilitated experiments in cutting due to the large increase in available stones.  Eager as ever to retain as much weight as possible, cutters still followed the shape of the rough crystals but now corners became more rounded and the number of facets increased.  The discovery of diamonds in South Africa during the late 1860’s coincided with revolutionised mechanical cutting methods. This saw the fashion for new round cut diamonds replace these cushion shaped stones which then became known as ‘old mine’ diamonds. Today the name old mine brilliant still describes a cushion shaped diamond with a small table facet, high crown and polished culet. These features allow old mine cuts to have a huge amount of fire and life, even in dimly-lit environments.


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Within the archives of the London jewellers Hancocks, there exists the most extraordinary book.  Large, heavy and showing distinct signs of age it is filled with page after page of diary entries documenting almost one hundred and twenty years of not only company history but social history as well.  

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