Deco White Gold Topaz, Diamond & Sapphire Ring
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A Deco style 9ct white gold topaz diamond and sapphire ring, millegrain set with an oval cut blue topaz of approx. 2.3ct to radiating sections set with carre cut blue sapphires and round brilliant cut diamonds, size at top 13.4 x 20 mm, size O, wt. 4.2g.
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- Millegrain - A type of jewellery setting where the stone is held is held in position by small adjacent beads of metal. This method of securing the stone was popular in the 19th century.
- 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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