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Julio J. Marsella circa 1945 to at least 1955.

Marner was founded late 1945 early 1946, eventually solely owned by Julio Marcella, produced high quality costume jewelry and jewelry components, including the patented lampwork glass heart-shaped stones.

These were used in jewelry with Marner's own branding marked most often Jewels by Julio or Julio Marcella, according to information provided in an article by Cheri Van Hoover on They were also used in pieces Marner made (referred to as "jobbing" in the jewelry business) for other brands such as Kramer, Hobe' and Hattie Carnegie. Hobe made fabulous use of Julio Marsella's unique patented (Pat. no. 178000) poured glass hearts, later marketed under the name "Mayorka Petals" in a 1962 campaign. This can be seen in Julia Carrolls book "Collecting Costume Jewelry 2002. p. 354. Hobe heralded the Mayorka Petals line in their 1962 "Hobe Jewels of Legendary Splendor" ad to introduce the glorious line and the extraordinary Gripoix style art glass.

These glass stones are seen in a variety of colors including varying shades of pink, blue, and green, some with swirls of copper having a similar look to Venetian aventurine beads.

Marner closed its doors in 1957, so jewelry made with these glass stones can most often be dated to the early to mid-1950s.

Early mark was "Julio Marsella", later mark, "Jewels by Julio".

See all items by Julio