8 Rare Pyrex Patterns To Look For At Thrift Stores

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What began as practical, heat-resistant cookware and serving dishes turned into a phenomenon, and one of the most obsessively collected pieces of vintage kitchenware. Pyrex debuted in 1915, manufactured by Corning Glass Works, which had been experimenting with glass that could withstand extreme temperatures since 1908. The brand's cult following and amassing of the cookware didn't start until the late '90s/early '00s, after Corning sold off Pyrex. Ever since, avid collectors have been scouring flea markets, thrift shops, second-market sites, and estate auctions hoping to find one-of-a-kind, rare, or limited-run pieces.

Some Pyrex cookware was manufactured only for a short period or as part of a promotion, and certain patterns were employee exclusives or were discontinued decades ago. Those factors, their shape, and accessories are what make some of them so valuable, with a few Pyrex items fetching thousands of dollars. Some are even so scarce that they are considered "the holy grail" if found by some collectors. However, for those savvy, patient, and determined enough to go on a treasure hunt through thrift stores, you can stumble upon some rare gems for just a few dollars. We rounded up eight of the rarest Pyrex patterns to look for on your next trip. So, before you breeze past that dusty casserole dish, take a closer look, because it could be worth far more than you will pay.

By the 1940s, potato chips were so popular that they transitioned from a casual snack to a party staple served alongside cheese. Pyrex met demand and introduced its chip-and-dip sets in the 1950s. One of the first was "Atomic Eyes," featuring a turquoise diamond shape with a white circle and turquoise cross. To some connoisseurs, it's considered the holy grail. Some bowls have the Pyrex stamp on the bottom, but the earliest versions were marked with the Corning Glass Works name. Discontinued in 1959, the set is listed on several resale sites, including Etsy, for $625.

Retailing for $6.95 in 1961, this pattern was released as a holiday promotion. The Gourmet Round Casserole dish, which came with a white background, featured golden vines with leaves and a blue interior. It also included a clear lid and a cradle with a wooden-handle candle warmer. Corning Glass Works produced two other Gourmet casserole dishes with similar designs in the '60s, including a black-and-white version and a yellow-and-gold version. The above casserole dish is listed on Poshmark without the lid for $60, and with the lid on Etsy for $179.66.

Another promotional set, the green ivy chip-and-dip set, came out in 1964. Perfect for hosting, the Cinderella-style bowls came with a gold bracket that attaches the dip bowl to the four-quart chip dish. The pattern features a white background with continuous and dainty green ivy all around the bowl. These dishes were usually advertised in the summer to persuade wedding shoppers, in the fall as holiday gifts, or in the spring ahead of Mother's Day. The ivy chip-and-dip set is listed on Etsy for $175.

Standing out for its dark, moody color, Midnight Bloom was a stark yet appealing contrast to the bright patterns of the time. Introduced in 1970, the oval casserole cookware features a deep blue dish and a glossy black opal lid with an intricate blue floral design. This design is highly coveted because it was manufactured only until 1971. Midnight Bloom is listed on Postmark for $85. However, some savvy thifters have found it at thrift shops and at Goodwill for as low as $4.99.

Whimsical, fun, and bright, the hot air balloon design was the first promotional patterned item that came as a chip-and-dip set. Introduced in 1958, the set features a turquoise background with white hot air balloons, a crescent moon, and a flying bicycle. Retailing for $3.95 when it premiered in the spring, this set is also highly sought after because it only sold for that year. One lucky shopper scored a $7.99 bowl at a thrift store. Its value is much higher than that, as it's listed on eBay for $250.

Known by collectors as the "Tree of Life," this eye-catching blue casserole dish was marketed as Saxony. Released in 1967, the Cinderella dish features squares around the bowl, with an intricate tree design in the middle. Birds are perched along the branches of the tree, which are growing out of a vase. Like others, the Saxony came with a lid, cradle, and candle warmer. This dish retailed for $6.95 at the time, but it can go for $200 on eBay. However, this Redditor tracked it down at a thrift store for $2.99.

Only produced in 1960, the Atomic Starburst Pyrex dish is a rare but coveted find today. The turquoise Cinderella serving dish is a two-quart square shape with a golden supernova star at the center. It came with a cradle and a double candle warmer, and was also released in black. Some collectors consider this to be the most treasured find. We found it on eBay for $900, and over $1,000 on Etsy, but this Redditor snagged one at an estate auction for $120.

Butterprint was among the first to be printed on Pyrex's Cinderella Nesting Bowls, which were introduced in 1957. The mixing bowls came stacked together with a handle on either side. Touting an Amish farm theme, the pink butterprint featured an opal background with a male and female farmer surrounded by corn stalks and wheat. It also had a giant rooster. The pink butterprint was discontinued in 1968, but can be found listed on eBay for $1,250. However, one savvy searcher found one for $225.