Enamel and Diamond Gold Ring with Guilloche Plaque

Enamel and diamond set yellow gold ring, the green guilloche…
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Enamel and diamond set yellow gold ring, the green guilloche enamel plaque overlaid with gold scroll decoration, highlighted by round brilliant cut diamonds and black enamel, mounted in Tests as 14ct gold, ring size L. Ring presents in good condition. Light wear to the edge of the green enamel, black enamel. Diamonds are colour G, clarity VS-Si. Some wear to the shank.

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  • Guilloche - A form of classical decoration consisting of a repeating ornament of interlacing curved bands, sometimes forming circles, and further decorated with rosettes or other flower forms.

    The name is derived from the inventor, French engineer Guillot, who invented a mechanical method of inscribing fine repeating patterns on to metallic surfaces.

    On enamelled items with guilloche decoration, the surface is firstly engraved with the repeating pattern, and then covered with several layers of enamel, each of which is fired.

    Where the item has not been enamelled the form of decoration is usually called "engine turned".
  • Shank - In jewellery, the shank of a ring is the hoop which encirles the finger.
  • 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.

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