Pyrex revolutionised table- and cooking-ware when it introduced a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware. (Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glass is known for having very low coefficients of thermal expansion, making it more resistant to thermal shock than any other common glass.)
Pyrex glassware was developed by the Corning Glass Works in 1915, and was originally clear. In the mid-1940s, however, coloured and patterned bowls and casserole dishes began appearing and were marketed as ‘The Gaiety Range’, promising a new, exciting and colourful approach to ‘oven table glass'.
Many of these vintage patterns are highly prized by collectors today.
The casserole dish this ring was crafted from shows the butter-yellow ‘Snowflake’ pattern, and dates from 1958.
The silver in this ring is sterling silver, and is stamped with the .925 stamp.
The ring is 26mm x 20mm across and 5mm deep.
The ring is fully adjustable to fit all sizes.
Snowflake in Butter Yellow, No 1, vintage Pyrex and sterling silver ring
The vintage china I use in my jewellery pieces is all recycled from pieces found at garage sales and op. shops, or through vintage dealers, who are happy to pass on some of their less-than-perfect items. I carefully cut out the selected section of china, shape it by hand, then grind the edges nice and smooth. I securely fix the piece into the sterling silver blank, then grout it so it stays firmly in place.
As with all artisan jewellery, some care needs to be taken to keep your piece in as-new condition.
The vintage china in your piece may well be up to a hundred years old, and needs to be treated accordingly. It is not recommended that you swim or shower whilst wearing your jewellery, nor that you wear it gardening or playing sport or any other activity where the item may get badly knocked. China is breakable, after all.
The sterling silver ring is easily adjustable, but care must be taken not to bend the ring band too quickly or too sharply. As with all metals, if they are worked roughly they may break.
The sterling silver bezel will enjoy a regular simple polish with a quality silvercloth. If you do use silver polish, do not get it on the china or the grout. Do not use strong chemicals on your jewellery.