Rose Gold Diamond and Marcasite Dress Ring
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- Brilliant Cut - In their naturally occuring state diamonds have little life or sparkle and for many centuries were simply cut in half and worn in amulets. Invented at the end of the 17th century by a Venetian diamond cutter, a "brilliant cut" diamond has 58 facets arranged in a regular geometric relationship, with 33 above the crown and 25 below on the pavilion.
The introduction of the brilliant cut increased the popularity of diamonds in jewellery as it was the first cut to reveal the fire of the diamond, with the light being internally reflected from one facet to another, and was superior to the previously used table cut and rose cut.Variants to the brilliant cut have emerged since the end of the 17th century, but the popularity of the original brilliant cut has continued to the present time, where it is still the most commonly found cut.
. - Marcasite - Marcasite is a mineral, iron sulphide, but is rarely used in jewellery. Instead marcasite is the name given to iron pyrites, the mineral sold as marcasite which is identical in copmosition to iron sulphide but crystalises as a cube, making it more suitable for jewellery. It is a brassy yellow in colour and is also known as "fool's gold", and sits well with silver rather than gold becasue of its colour.
Marcasite has been used in jewellery since ancient times and became popular again in jewellery in the 18th century, continuing through to the early 20th century, with the settings becoming cheaper as time progressed, eventually earning the sobriquet "costume jewellery" along with other cheap jewellery that was made for a prevailing pattern and meant to be changed with each new outfit. - Faceting - Faceting is a technique of removing material from a curved surface, to give a series of flat surfaces but retaining the profile of the original surface.
The technique is most commonly associated with diamond cutting where the various cuts used such as rose cut and brilliant cut, add life and sparkle to the stone, whilst at the same time removing as little of the stone as possible.
Faceting by grinding is also used to decorate glass. The stems of many drinking glasses are decorated by cutting a series of flat surfaces on a circular stem, and hollow vessels such as vases may have faceted surfaces.
In furniture faceting is often applied to legs of tables and chairs, where a circular baluster shaped section is flattened so as to form an octagonal section.
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