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.
1 The gemstone is graded on color intensity, hue and tone. 2  The most valuable are intense and pure blue with a tinge of violet and very little gray or green hues. 3  Ceylon Blue, Cornflower Blue, Electric Blue, Kashmir Blue (from Kashmir), Royal Blue, Sky Blue, Velvet Blue and Violet Blue are sapphire colors.