Page 92 - 18 KARATI GOLD&FASHION 222

Gem of the sun
monochromatic category of gems, in which the elements of colouration are connected to the crystalline structure of the mineral, in this specific case iron, equal to 10% of its total mass. Though the colour of peridot derives essentially from iron, other elements such as chromium or nickel make the colour of these gemstones, belonging to the family of silicates, even more intense. And so, the green is not just green, but presents itself in all variations, from a brilliant yellow-green to a bright grass green to a bottle green or to apple green. Though peridot is usually a very transparent gem, specimens are often found with cat’s eye (chatoyancy) or with asterisk (asterism), effects which the reflection of a ray of visible light produce on the surface of the gem, due to needle-like inclusions. Peridot has an ancient and fascinating history, both in nature and in culture. The ancient Romans called it ‘emerald of the evening’ because its colour was the same at night, but it also kept its shine in candlelight and in the light of a
In alto, al centro: bracciale composto da pannelli di peridoti a taglio rettangolare incastonati all'interno di una cornice sagomata e intervallata da diamanti, oro bianco 18 Kt. Sopra: bracciale in tormaline verdi e blu a taglio ovale e circolare, peridoti, zaffiri, smeraldi e berilli, oro giallo 18 Kt, circa 1960, Suzanne Belperron. A fianco: spilla a clip “Dolphin” composta da peridoti rotondi, cabochon turchesi rotondi, rubini rotondi, oro giallo 18 Kt, firmata Tiffany & Co. Schlumberger France.
Top, at the centre: bracelet composed of panels of rectangular cut peridots set inside a shaped frame and interspersed with diamonds, 18 Kt white gold. Above: bracelet in oval and circular cut green and blue tourmalines, peridots, sapphires, emeralds and beryls, 18 Kt yellow gold, circa 1960, Suzanne Belperron. At the side: “Dolphin” clip brooch composed of round peridots, round turquoise cabochons, round rubies, 18 Kt yellow gold, signed Tiffany & Co. Schlumberger France.
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