The Working of Precious Stones.	31
	4.—POINT CUT. Stones may be pointed naturally or artificially. Some Precious Stones may either be cut as four-sided pyramids or are so formed by polishing the faces of the octahedron and making them exactly true and regular. This style of cutting is found in antique ornaments only, and was well-known to Kentmann in 1562.
	5.—BRI0LETTES. Briolettes are pear-shaped or oval stones, having neither table, culette, nor edge, but covered all round with triangular-shaped facets, and frequently pierced through at the top in order that they may be worn suspended.
	6.—PORTRAIT STONES. These consist of thin plates of Diamond, evenly polished on both sides, with little facets on the edges. They serve to cover portraits in Jewelry.
	7.—STEP-CUT OR GRADUATED FORM. When the facets gradually decrease as they approach the table and culasse, the gem is designated a " Step-cut.' The style is effective, especially in coloured stones, the light being thereby better reflected, and the play of color intensified.
	8.—CONVEX STONES OR CABOCHON. When a stone receives one or two convex faces with