Shop Carat Weight 1.25 0.01 1.3 0.01 1.5 0.015 1.75 0.02 Round Cut MM Size Index
The table above shows that the size of a diamond does not depend on its weight but rather on its surface area. In other words, a small diamond is not less valuable than a large one.
Diamonds that are cut from mined stones are always smaller than perfect diamonds created in a lab. The typical diamond sold in retail stores has a diameter no larger than 2mm and weighs about 0.15 carats. A flawless diamond of the same size would weigh more than 3 times as much. The table below shows the comparative sizes of some common gemstones.
It's important to remember that the color of a diamond does not affect its value. Colorless diamonds are the most rare and expensive. Red and blue diamonds can be found in mined stone; green diamonds cannot. But all colored diamonds are worth the same.
The quality of the diamond also affects its price. For example, an untreated diamond worth $10,000 may be color-graded by the diamond industry as either "SI1" or "SI2". These letters refer to the color scale used by the Gemological Institute of America (GIA).
0.65–0.75 carat (200–225 milligrams) is the maximum size that can be sold as a rough stone and still be priced at under $10,000. Anything larger than that should be considered a jewelry piece rather than a gemstone.
The best way to determine the quality of a diamond is by its color. Color ranges from colorless to extremely dark (almost black). Diamonds are classified by their color as well as their clarity. There are also diamonds with other special colors such as pink, yellow, and white. These do not come from natural sources; instead, they are produced through laboratory techniques (see below).
Colorless diamonds are the most valuable because they are the hardest to colorate in the diamond mine. Pink diamonds can be treated by heating them to very high temperatures, which removes much of the pink color and makes them more white. Yellow diamonds can be made more white by irradiating them with ultraviolet light. This process does not change the quality of the diamond but it can make it more durable if it is used on jewelry that is frequently worn or exposed to sunlight.
1.14 cts. Or 5.5 grams.
That's about the weight of a small ballpoint pen, or about as heavy as a large apple.
The sapphire is the only gem that is completely transparent; it has no inclusions of any kind. Sapphire was formerly used for glass production and still is in some parts of the world. Pure sapphire is now rare but comes in various colors, including blue, green, red, and orange.
The color of sapphires is derived from the type of mineral inside them. They are usually white, pink, or yellow, but blues, purples, and greens can also be found. The more vivid the color, the higher the quality. Sapphires are one of the most durable gems in use today. It will not crack or break down with time.
Used sapphires are popular jewelry items. They add value to your jewelry collection by just wearing it!
There are several varieties of sapphires.
To determine the carat weight of a diamond, just weigh it and note the weight in grams. Then, divide that figure by 0.2 to get the diamond's carat weight. For example, if a diamond weighs 0.1 kilos, dividing it by 0.2 gets 0.5, indicating that the stone weighs half a carat.
Diamonds are made up of carbon atoms which are very heavy. The core of each diamond is made up of these carbon atoms packed together with some additional electrons from other elements such as nitrogen or phosphorus. Because carbon is so heavy, a single diamond can be extremely large. A typical gem-quality diamond is about 100 times heavier than water. This means that one diamond of average size (about 1/4 inch or 6 millimeters) would be able to lift 25 pounds! Although larger diamonds have been found, this is not common for they tend to be too soft for use as jewelry.
The center of a diamond is very dense and hard while its surface is less dense and harder than solid steel. This is why diamonds are valuable - they are rare and very hard to replace once lost. Diamonds are also used in tools because of their hardness; no other material can match it for creating fine jewelry. Modern technology has improved upon traditional diamond cutting techniques. Computer-controlled machines can cut almost any shape out of a diamond. This allows designers to create artful pieces that would be impossible or difficult to make using traditional methods.
The size of a diamond is measured in millimeters (mm). These dimensions are roughly equivalent to carats. A 1-carat round diamond is approximately 6.5 mm in diameter, whereas a 1.25-carat round diamond is 6.8 mm in diameter. A 1-carat diamond is normally 5.5 mm and a 1.25 carat diamond is 6 mm in square-cut diamonds such as princess, cushion, and asscher. The color of the stone also matters; yellow diamonds are not considered good quality.
When shopping for a diamond, it's important to know what qualities to look for in order to get the best value for your money. Diamond cut quality is very important because it affects how well a stone will sparkle when worn. You should also check that there are no visible defects in the stone. Last but not least, price is another factor that should not be ignored when buying a diamond. High-quality stones may cost more, but you will not be disappointed!
The three main types of cuts are: Round - the most popular shape, it resembles a ball covered with jewels. It is ideal for women who want their diamond to be sparkling on all sides. Princess - similar to the round cut, but with two straight lines instead of one curve, it is better for larger stones that need to be kept clean and simple. Asscher - named after its inventor, Henry Asscher, this cut is identical to the princess cut except that it has three straight lines instead of two. It is the most expensive of all cuts because of its unique design.