Precious Stones, Diamonds and Pearls
Before buying precious stones, it’s necessary to know about investing in argyle pink diamonds or pearls, it is a good idea to inform yourself about the subject in order to recognize the differences that could affect the value of your purchase. For example, some factors that can affect the value of precious stones are their size, whether they are natural or created in the laboratory, and if they were subjected to some treatment to improve their appearance.
∙ Precious stones
∙ Precious stones
There are Three Primary Types of Stone Products:
Natural gemstones that are created by nature and that can be rare and expensive.
Lab-made stones – likewise called engineered, research center developed, or made – that have a similar substance, physical and visual properties as common gemstones, however, are not as uncommon and are generally more affordable than characteristic stones.
Imitation stones that look similar to natural stones, but may be made of glass, plastic or other cheaper material. Laboratory stones and imitation stones must be clearly identified as such.
Gemstones can be priced according to their weight, size or based on both factors. The basic unit of weight of precious stones is carate, which is equivalent to 1/5 of a gram. The carats are divided into 100 units, each of these units is called a point. For example, a medium-carate gemstone could weigh .50 carats or 50 points.
Treatments and Enhancements
Treatments or enhancements refer to the way in which some stones are treated to improve their appearance or durability, or even their color. The effects of some treatments may decrease or change over time, and there are some treated stones that require special care. Some enhancement treatments affect the value of stone with respect to a comparable stone without treatment.
The value of a Diamond is based on Criteria:
The color of a diamond is usually classified with a scale established by the Gemological Institute of America (GIA). The GIA color scale classifies colors in a range from D to Z, the letter D corresponds to the highest gradation.
The cut refers to the quality of the diamond’s size, and the proportions, polishing, and symmetry of the diamond are taken into account.
The clarity or cleanness of a diamond refers to the natural imperfections of the diamond. The GIA scales classify clarity in a range that goes from “flawless” to 13. A diamond can be described as “flawless” only when an experienced diamond classifier determines that it has no internal or surface imperfection by examining it. with a magnifying glass of 10 increases.
Cultured or cultured pearls also come from mollusks, but they are produced with the intervention of man: the process to create cultured pearls consist of introducing an irritating substance into the shells to induce the cultivation of a pearl.
Natural pearls are very rare, therefore, most pearls used in jewelry are cultured or imitation. Usually, cultured pearls are more expensive than imitation pearls. Usually, the value of a cultured pearl is based on its size, which is commonly expressed in millimeters, and the quality of its mother-of-pearl cover, which is what gives it its characteristic shine. Jewelers should tell you if pearls are cultured or imitation.
There are some natural pearls with shades of black, bronze, gold, purple, orange blue; others are dyed. Jewelers should tell you if the color of the pearls is natural or if they are dyed or irradiated, if you want to know more about investing in argyle pink diamonds, you should visit the web-page “www.argylediamondinvestments.com.au”.