Robert Long & Norman Steele.
Facet Design Barions provides an extensive treatment of the design and cutting of the Barion faceted gemstone. This book breaks away from the other 6 volumes in Long and Steele's Facet Design series in that it is dedicated to a transcendent design and cutting technique as opposed to a specific category of gem shapes. Planviews are provided for 92 Barion cuts by various designers encompassing all the standard gem shapes.
Detailed cutting instructions are presented for 52 complete barion designs by the authors including SPE Triangle, CC Triangle Barion, CC Barion Triangle, CC Triangle Split Barion, CC Triangle Double Barion, CC Triangle Barion, Barion Square, Square Barion, Split Square Double Barion, Superflash One, Split Facet Barion Emerald, Barion Split Facet Emerald (Senaal), SP Barion Pentagonal, SP Double Barion Pentagonal, CC Barion Pentagonal, CC Double Barion Pentagonal, SP Hexagonal Barion, CC Hexagonal Barion, SP Hexagonal Barion #2, Octagonal Barion, Diamond Barion, Barion Fan, Super Cushion Triangle, Cushion Triangle Barion, Cushion Triangle Barion, Checker Square Barion, Square Cushion Barion, Square Cushion Barion, Square Cushion Barion, Super Cushion Rectangle, Split Barion Cushion, Cushion Rectangle Half Barion, Double Barion L/W 1.2, Cushion Half Barion, Pentagonal Cushion Barion, Pentagonal Cushion Barion, Pentagonal Cushion Barion, Offset Main Oval Barion, Offset Main Oval Barion, Offset Main Oval Barion, Offset Main Oval Barion, Offset Main Oval Barion, Oval Barion (For Small Stones), Oval Barion (For Large Stones), Split Facet Oval Barion, Barion Oval L/W 1.25, Barion Oval L/W 1.33, Barion Oval L/W 1.40, Barion Oval L/W 1.50, Barion Commercial Marquise, Barion Pear, and Barion O'Henry.
Incorporated technical discussions include Barion Design Concepts, Crowns for Barion Pavilions, Corner Location by the Angle Method (CLAM), Tangent Ratio (Angle Translation), and Tangent Ratio Conversion Nomograph. A shape classification diagram is provided inside the front cover showing profiles and nomenclature for 46 different stone shapes and outlines.
Loose leaf, 8.5" x 11", 95 pages