They typically include hedge funds, private equity, venture capital, real estate, and real assets, although this investment category is fluid, and new products are constantly being developed. Alternative investments use techniques and instruments that are unavailable in traditional investment approaches.
Pearls are a popular gemstone, especially in jewelry-making. Gemstones. Turquoise, a popular gemstone, is used to make jewelry. Diamonds. Promise rings often feature gems such as amethyst. Quartz is a common type of gemstone. Diamonds are traditionally given as an engagement ring during a marriage proposal.
Cutting andpolishingofgemstones There are two types ofwidelyused gem-stone cuts. Opaque or figured gemstonesare usually cut with a rounded upper sur-faceand a flat or rounded back.A stone cutting do not apply to all gemstones. Stones that are especially brittle, soft, or difficult to polishrequireadditional pro-cedures or specialtechniques.Manylapi-Fig.2. Variations of thecabochon cut.