Palladium - a member of the platinum group of metals, palladium is often alloyed with platinum to give it better hardness.
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Pave' Setting - a type of setting in which small gemstones are set as close together as possible.
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Pavilion - the lower part of a faceted gemstone which falls below the girdle (the widest part of the gemstone).
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Pennyweight - a unit of weight in the troy system equal to one twentieth of an ounce. The abbreviation used is dwt.
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Platinum - a white ductile metallic element, resistant to common acids often used in jewelry.
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Play of Color - a display of lustrous colors seen in precious opal and labradorite.
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Proportions - are based on a gemstones table width, depth of the crown and pavilion, crown and pavilion facet angles as well as the girdle thickness.
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