18ct Abalone Haliotis Scalaris Pendant with 5 moissanite diamonds by John Allchin.
This 18ct gold shell is from a pattern of a Haliotis Scalaris, of the Abalone species, and is made to wear showing either side, both of which are beautiful.
The top side is finished in unpolished matt and has a soft yellow glow showing the magic of nature with the classic spiral and the bottom side is highly polished and set with five diamonds.
All of my patterns are made from shells found on beaches, this one from one north of Kalbarri.
The size of the shell varies between 60 mm and 100 mm. “The depressed shell has a rounded-oval shape, showing a strong spiral rib on each side of the row of 5 to 6 open perforations, and prominent elevated radiating lamellae around the spire. The shell is moderately large but thin, of the depressed, irregularly oval shape. Its color pattern is reddish or variegated olive and green. The surface has a strong rounded ridge inside of the row of elevated tubular holes, and a smaller, nodose ridge outside of it. Above it is finely striated spirally, and with coarse raised lamellae between the spire and the inner spiral rib. Its inner surface is silvery and very iridescent, with excavations corresponding to the elevations of the outer surface. The columellar plate is narrow, and obliquely truncated below.” 
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