More recently, the display of body jewellery, such as piercings, has become a mark of acceptance or seen as a badge of courage within some groups, but is completely rejected in others. Likewise, the hip hop culture has popularized the slang term bling-bling, which refers to ostentatious display of jewellery by men or women.

Some gems, for example, amethyst, have become less valued as methods of extracting and importing them have progressed. Some man-made gems can serve in place of natural gems, an example is the cubic zirconia, used in place of the diamond.

More recently, the display of body jewellery, such as piercings, has become a mark of acceptance or seen as a badge of courage within some groups, but is completely rejected in others. Likewise, the hip hop culture has popularized the slang term bling-bling, which refers to ostentatious display of jewellery by men or women.

Form and function:Most cultures have at some point had a practice of keeping large amounts of wealth stored in the form of jewellery. Numerous cultures move wedding dowries in the form of jewellery, or create jewellery as a means to store or display coins. Alternatively, jewellery has been used as a currency or trade good; an example being the use of slave beads.

Jewellery has been made to adorn nearly every body part, from hairpins to toe rings and many more types of jewellery. While high-quality jewellery is made with gemstones and precious metals, such as silver or gold, there is also a growing demand for art jewellery where design and creativity is prized above material value. In addition, there is the less costly costume jewellery, made from lower value materials and mass-produced. Other variations include wire sculpture jewellery, using anything from base metal wire with rock tumbled stone to precious metals and precious gemstones.

Jewellery has been made to adorn nearly every body part, from hairpins to toe rings and many more types of jewellery. While high-quality jewellery is made with gemstones and precious metals, such as silver or gold, there is also a growing demand for art jewellery where design and creativity is prized above material value. In addition, there is the less costly costume jewellery, made from lower value materials and mass-produced. Other variations include wire sculpture jewellery, using anything from base metal wire with rock tumbled stone to precious metals and precious gemstones.

Materials and methods:In creating jewellery, gemstones, coins, or other precious items are often used, and they are typically set into precious metals. Alloys of nearly every metal known have been encountered in jewellery -- bronze, for example, was common in Roman times. Modern fine jewellery usually includes gold, white gold, platinum, palladium, titanium or silver.

Metal finishes: For platinum, gold, and silver jewellery there are many techniques to create finishes. The most common are high-polish, satin/matte, brushed, and hammered. High-polished jewellery is by far the most common and gives the metal the highly-reflective and shiny look. Satin, or matte finish reduces the shine and reflection of the jewellery and is commonly used to accentuate gemstones such as diamonds.