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They made the breastpiece square and folded double, nine inches long and nine inches wide.
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They mounted four rows of gemstones on it. The first row was a row of carnelian, topaz, and emerald;
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the second row, a turquoise, a sapphire, and a diamond;
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the third row, a jacinth, an agate, and an amethyst;
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and the fourth row, a beryl, an onyx, and a jasper. They were surrounded with gold filigree in their settings.