Another probable source for Leadbeater’s writings on jewels was the work of George Frederick Kunz (1856-1932), an American mineralogist and mineral collector, author of over 300 articles and a number of books. See: https://en.wikipedia.org/wiki/George_Frederick_Kunz
The Curious Lore Of Precious Stones Being A Description of Their Sentiments and Folk Lore, Superstitions, Symbolism, Mysticism, Use in Medicine, Protection, Prevention, Religion, and Divination, Crystal Gazing, Birthstones, Lucky Stones and Talismans, Astral, Zodical, and Planetary J.B. Lippincott, Philadelphia and London 1913; Halcyon House, New York, 1938.
Digital version available on-line at: https://archive.org/details/curiousloreofpre028009mbp Chapter X is devoted to “Planetary and Astral Influences of Precious Stones”.
The Magic of Jewels and Charms Philadelphia London, J.B. Lippincott Company, 1915.
Digital version available on-line at: https://archive.org/details/magicjewelsandc00kunzgoog
William Thomas Pavitt was born in 1870, the son of John and Sarah Pavitt. He married Kate Pitt (1868-1949), a dressmaker and milliner, in 1906. He died in 1937. His wife had joined the Theosophical Society in England in 1912.
Symbols of the Zodiac from William Thomas Pavitt and Kate Pavitt The Book of Talismans, Amulets, and Zodiacal Gems 1st edition: William Rider and Son, London, 1914.
“An Egyptianesque moonstone pendant by William Thomas Pavitt. Stamped ‘W.T. Pavitt, London’, the oval cabochon moonstone within a pierced rayed mount with three lotus flowers, flanked by leaf motifs, the bead and scroll base with circular wire drop enclosing the symbol of Venus, with fancy-link chain and bale, 6cm long.” Sold at auction, London, 2009.
“An Arts and Crafts gold and turquoise set ring by William Thomas Pavitt, the cast wirework foliate frame set with central turquoise stone, internally applied white metal panel with the symbol of Venus, another copper panel with Libra symbol, flanking quartered, date 1909, in William Thomas Pavitt presentation case, size P.” Sold at auction, London, October, 2016.