Precious Stones

Precious stones, also called gemstones, are mineral pieces cut and polished for use in jewelry and other types of ornamentations. Gemstones are classified by their hardness, translucency, and color, and their value is dependant on these factors as well as how common or rare the mineral may be. Gemstones are formed below the earth’s surface and their characteristics usually develop when interacting with water and other rocks and minerals around them.

Rarity as well as supply and demand are the main driving forces behind the prices of gemstones. Gems are characterized by gemologists based on their chemical composition, crystal structure (e.g.: cubic, hexagonal, monoclinic) and optical characteristics as well as their hardness (using the Moh’s Hardness Scale). The precious stones are diamond, ruby, sapphire, emerald, opal, and pearl, and differ in price and rarity from semi-precious stones such as garnet.

Buying gemstones can be difficult because, unlike diamonds, no official system of grading is used. The most common way of determining value has been by eye using the four C’s (Color, Clarity, Cut, and Carat), and because of this, it pays to only go to a reputable dealer so you do not buy fake or synthetic gemstones. The Coin Galleries of Oyster Bay has reputable dealers and sellers who know the true value of gemstones and are easily able to tell a fake.

It is important to set parameters and do your research before going out to buy any jewelry or accessories containing precious stones. Price point should be your main concern as gemstones can range wildly depending on their characteristics and rarity. Color is usually one of the main characteristics people seek out when looking for gemstones and you can narrow down your search if you know what you are specifically looking for. Come down to the Coin Galleries of Oyster Bay and have one of our reputable dealers help you pick out the perfect gemstone!