This stands for cutDiamond cutting is the practice of shaping a diamond from a rough stone into a faceted gem. Cutting diamonds requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty.https://en.wikipedia.org › wiki › Diamond_cutting
Fortunately, the most important elements when purchasing a diamond can easily remembered because they begin with the letter “C”. You may have heard of “the four C's” which are cut, clarity, color and carat.
COPYRIGHT MARK ©
Most costume jewelry having the copyright mark was made after 1955.
The copyright symbol, or copyright sign, © (a circled capital letter C for copyright), is the symbol used in copyright notices for works other than sound recordings.
By 1830 the words COIN, PURE COIN, DOLLAR, STANDARD, PREMIUM, or the letters “C” or “D” were placed on silver to indicate that it was 900 out of 1000 parts silver. The word STERLING was frequently used by 1860. STERLING means that 925 out of 1000 parts are silver. This is still the standard for sterling silver.
This marking will tell you when it was produced. However, the date letters used differ depending on where the silver was assayed. For example, the date letter for 1898 in London is a lowercase c, but in Sheffield, it's a lowercase f. This is why it's important to first identify the city mark of the silver.
The four Cs are the four characteristics traditionally used to determine the quality and value of a diamond: carat, cut, clarity, and color.
Carat is used after a number to indicate how pure gold is. The purest gold is 24-carat gold. ... a 14-carat gold fountain pen.
karat, carat, Karat, Carat, Kt., Ct., K, C. Gold is measured in karats, with 24 karats being 24/24ths gold or pure gold.
Traditionally, it is 92.5% silver (Ag), and 7.5% copper (Cu). Occasionally, other metals account for 7.5%, but the 925 hallmark will always indicate 92.5% silver purity.
Hallmark(s): "Tiffany & Co.", "T&Co." Information: American luxury retailer headquartered in New York City. Founded in 1837 by Charles Lewis Tiffany. Produces high end, custom pieces in platinum and gold, as well as silver. Tiffany & Co.
It's essentially a heavy-duty tripod used to execute various lighting and rigging tasks. The “C” stands for “century,” which was the name of the most common size of reflector held by these stands in the early days of filmmaking. Anatomy of a C-stand: C-stands are composed of a base, a stem, a grip head, and a grip arm.
Chances are, you've heard the 4 C's of diamonds thrown around. This stands for cut, color, clarity, and carat—four features that are always examined when distinguishing the quality of one engagement ring diamond from the next.
Out of the 4 C's of diamonds, the cut of the diamond is the most important. This is followed by color, clarity, and carat weight.
The marks stamped inside the rings serve to describe the basic properties of a piece of jewelry, usually this information includes: Type of metal. Purity level of the metal. Carat weight of the diamond. Carat weight of the center gemstone.
“Hallmarks tell the story of the piece, and usually what country the item came from, as well as the artist and date made.” The date letter stamp, a requirement for British jewelry until 1999, is useful to know if you need to date a piece of vintage or retro jewelry.
It means, 91.6 pure gold in 100 gram alloy (a combination of metals). Likewise, 23 carat gold is referred to as 958 gold which means 95.8 grams of pure gold in 100 gram alloy. 18 carat or 750 gold means 75 grams of pure gold in 100 gram alloy.
The 14k KC means simply 14k gold (14k) and the makers mark (KC). There have been thousands of maker's marks, so if you need to know who the maker is, it will take some research to discover this.
'Caratage' is the measurement of purity of gold alloyed with other metals. 24 carat is pure gold with no other metals. Lower caratages contain less gold; 18 carat gold contains 75 per cent gold and 25 per cent other metals, often copper or silver. The minimum caratage for an item to be called gold varies by country.
In the letter-grade diamond color scale, D (colorless) is the highest and best grade, and Z is the lowest. Diamond used to be graded like gemstones on a range that included AAA, AA, A, and B, so the new scale started at D to avoid confusion.
Cut is the most visible because it's what makes each diamond sparkle, and influences your diamond's shape. Cut refers to a diamond's proportions, finish, symmetry and polish.
GIA's color-grading scale for diamonds is the industry standard. The scale begins with the letter D, representing colorless, and continues with increasing presence of color to the letter Z, or light yellow or brown. Each letter grade has a clearly defined range of color appearance.