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https://www.thesprucecrafts.com/stones-in-vintage-costume-jewelry-4026020
Jun 27, 2019 · Saphiret is a type of glass stone with a blue-brown hue used in Victorian jewelry. Mid-century costume jewelry made during the 1950s and early '60s uses similar stones that were named Sappharine by manufacturers. Many collectors and sellers reference all these stones as saphiret, however, regardless of the age.
https://www.leaf.tv/articles/how-to-tell-glass-from-semi-precious-stone-beads/
Look for texture and grain within the bead. Semi-precious stones tend to have more non-uniform swirls and shapes within them than the average glass bead does. You can also compare the bead to pictures of semi-precious stones to see if they match images of any stones, such as amber or amethyst. Examine the hole drilled in the bead.
https://hobbylark.com/collecting/antique-jewelry3
Oct 24, 2019 · Identifying what the black material is can make a big difference in determining when it was made and how much it could be worth. Black jewelry most likely made of one of the following: plastic, glass, stone, jet, gutta-percha, crepe stone, bog oak, and bakelite. There are ways to test each one of these materials to determine what it is.Estimated Reading Time: 8 mins
https://www.eversoscrumptious.com/2012/02/vintage-precious-jewelry-understanding-buying-and-not-selling-it/
Feb 22, 2012 · Vintage precious jewelry = mid-Victorian to modern jewelry made with gold, silver, platinum, and precious stones, including pearl strands. People often assume that all vintage precious jewelry was like Elizabeth Taylor’s jewels – they visualize spectacularly valuable pieces. Elizabeth Taylor and her emeralds. Brooch on right is Bulgari.
https://www.wikihow.com/Identify-Vintage-Beads
May 06, 2021 · Depending on the beads' weight, they could be either French jet glass or genuine jet, a fossilized semiprecious stone often used in Victorian mourning jewelry. If the beads feel heavy and cool to the touch, they are most likely glass. Jet is not cool to the touch, and is light in weight.
https://www.beadinggem.com/2010/09/quick-tests-you-can-do-to-test-for-fake.html
Sep 05, 2010 · An old test was to put the piece in the mouth. Glass will soon feel warm. Gemstones feel icy for a lot longer because they have higher thermal conductivity than glass. They take heat from your mouth so they themselves feel cold. The other giveaway about glass is the presence of tiny air bubbles - if you can see them without the aid of a loupe.
https://www.ehow.com/how_6132656_tell-glass-beads-plastic-beads.html
If you do not own a jewelry scale, compare the weight of the bead in one hand with the weight of a similarly-sized glass or plastic bead in the opposite hand. If any two feel similarly weighted, then they are probably made of the same substance.
https://www.gemsociety.org/article/victorian-period-jewelry-1837-1860/
The Victorian Era began with horse-drawn carriages and candlelight and ended with automobiles and electricity. Historians often divide this long period into three parts: the Early Victorian or Romantic, the Middle Victorian or Grand, and the Late Victorian or Aesthetic periods.. Distinguishing Romantic Period Jewelry from Other Types of Victorian Jewelry
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