Intensity
The color of a gemstone from bright to dull.
Interference Colors
Colors revealed by a polarisope as polarized light pass through a gemstone. Used to detect the presence of double refractivity in a gemstone.
Intensity - See saturation.
Iridescent - A rainbow range of colors reflected from the surface of a gemstone.
Intensity of color and clarity are the most essential considerations in evaluating Aquamarine.
Intensity (or amplitude), which is related to the human perception of brightness of the light,
Frequency (or wavelength), perceived by humans as the color of the light, and ...
Intensity of the internal and external reflections of white light from the crown of a polished diamond or other gemstone. Hardness, refractive index, reflectivity, polish, lustre and proportions all affect a gemstone's brilliance.
Brilliant Cut ...
Intensity and distribution of play-of-color.
Body color
Number of colors present and relative abundance
Size, shape, weight of cab..
Amount of matrix vs. opal in cab.
INTENSITY - The attribute of a color, which determines its position on a scale from vivid to dull. Traces of brown or gray decrease the intensity of a stone (the amount of color saturation).
intensity
The term intensity is used interchangeably with the term saturation.
iolite ...
The intensity of the white light reflected from the surface and the internal surfaces of the facets on a diamond in the "Face Up" position.
Brilliant Cut ...
The intensity or the saturation of the color is also important. A lesser saturated gemstone will appear as if the color has been washed out or mixed with grey or brown. The fully saturated gems are more valuable than the ones with lesser color.
Colour intensity, the deepness or richness of colour, is the most important consideration when purchasing a fancy colour diamond. The more intense the colour, the rarer and more valuable the diamond will be.
Saturation (intensity). The richness of a color, or the degree to which a color varies from achromaticity (white and black are the two achromatic colors, each totally lacking in hue). When dealing with gems of the same basic hue position (i.e.
Brilliancy The intensity of the internal and external reflections of white light to the eye from a diamond or other gem in the face-up position.
Luster: The intensity of light reflected from the surface of the pearl. High luster pearls reflect light well and show mirror-like reflections. Low luster pearls appear milky or chalky.
Pierdot The intensity of the colour of the stone depends upon the amount of iron contained. The colour varies from yellow-green and olive to brownish green.
Rhodonite is a glass opaque pink to rose-red mineral, often with black inclusions.
Saturation is the intensity of brightness or dullness of the color. The more color saturated a gemstone is, the more valuable it becomes.
A screw back is an ear nut that screws onto a threaded earring post; usually used with diamond stud earrings.
Note: If color intensity exceeds the Exceptional grade, the stone would be graded Exceptional+ ...
Heated to produce, intensity or lighten color and/or improve color uniformity and appearance
Diffusion of color or asterism at or near the surface, usually blue
Irradiation to provide temporary intense yellow or orange color
Usually ...
R0 is termed luster intensity and is dependent solely in the refractive index(= n) as explained in the following paragraph:
R0 ={(n-1) / (n+1)}2
For diamond n = 2.42. Thus the equation reads: ...
Value is impacted by the color, visibility, and intensity of the star. The famed 182-carat Star of Bombay is an example of a premier blue star sapphire. Blue TopazA topaz ranging in color from pale to bright blue.
seismograph A machine for measuring the intensity of earthquakes by recording the seismic waves that they generate. seismology The study of earthquakes and the structure of the Earth, based on data from seismic waves.
Kunzite is strongly pleochroic (displaying color intensity variation of many colors), which is strongest on the kunzite crystal when viewed from the top or bottom.
Each stone is a unique combination of size, color, cut, clarity, finish, and balance of color intensity and lightness. The colors of all these diamonds are natural and have not been treated in any way.
Fire Opal Inspires dynamic energy, intensity, passion, emotional expressiveness. Also see Opal. Fluorite Has limited use as a gemstone because it is relatively soft and easily scratched.
In general, the value of jade is determined according to its colour and the intensity of that colour, the vivacity and texture, and its clarity and transparency.
principle: Frequency, Intensity, and Time.
This workout is for all ages and fitness levels. With photographs and illustrations, you will easily get in shape, using the same principles of the United States Naval Academy! ...
What makes these stones exceptional is an electric intensity and a tone that pushes them way above a pastel color. Dealers, gem organizations, labs and collectors argue about where to draw the line between ruby and pink sapphire.
A premium amethyst is purple, bluish purple to reddish purple in hue, vivid in intensity and medium dark in tone.
Color can be described as the combination of three characteristics: hue, tone, and intensity. Hue is a function of the frequency of light and is described by familiar terms such as red, orange, yellow, blue, green, indigo, and violet.
Purity and intensity of the blue color is the first consideration; secondary colors of green or violet or overtones that make the stone appear grayish will lower its value.
It is classified by its back ground color, the particular colors and intensity of color display, and its size.
When a diamond is graded darker than Z on the GIA scale it is referred to as "fancy yellow", and the more color and intensity it shows, the more valuable it will be.
A negative experience occurs with emotional intensity. As a teenager, I was with my family in Yellowstone National Park when a mother bear chased us. Even when we made it to our car, she rose to her full height and leaned against the car.
In the example at left, red represents light being emitted from the diamond in a direction and intensity that will be perceived by the viewer as brightness. Pink areas represent areas of less brightness.
The fluorescence can be a bold green, orangish-red, or whitish blue, and vary in intensity. Fluorescence may be unpredictable because some gems will have no reaction to the UV light source.
Color zoning refers to variation of intensity within the stone, exhibiting deeper blue hues while other areas in the stone may appear lighter. Many sapphires are too dark in color, especially those from Thailand and Australia.
The Richter scale is a logarithmic scale that measures the intensity of an earthquake. It was developed in 1935 by Charles F. Richter. The magnitude of an earthquake is calculated from the logarithm of the amplitude of waves recorded by seismographs.
The intensity of color of a fine ruby is like a glowing coal.. After color, the other factors are clarity, cut and size. Cut can make a big difference in how attractive and lively a ruby appears to the eye.
With its dazzling intensity and complex play of color, Tanzanite boasts a uniquely sensuous appeal. Tanzanite's rarity and exotic origin are also part of its fascination.
In addition to serving as adornment, it increases the intensity of sexual stimulation, particularly during sexual intercourse. The name is derived from the tissue where the labia meet the clitoral hood, which looks like a triangle when pinched.
Saturation is a measure of the intensity or purity of a gem's hue or color. A gemstone that is free of gray or brown hues is considered to be strongly saturated and is more valuable than a gemstone with lower saturation.
In between these extremes, the color brown/yellow increases in intensity from a totally clear D to the beginnings of a faint yellow/brown beginning with J-K grade.
The value of an opal is determined by the intensity and distribution of its play of colour, its size, shape, and weight.
Rather, their value is derived by color intensity that ranges from Light at the lower end to Vivid at the high end. The more intense or strong the color appears, the more valuable the diamond.
After being extracted from the earth, rubies today are commonly heated to high temperatures to maximize the purity and intensity of their red hue. Impurities may also dissolve or become less noticeable after heating.
The presence and color (most frequently blue, but can be any color) of fluorescence and its intensity (none/inert, faint, medium, strong, very strong) are indicated on all GIA and AGS grading reports.
Interestingly, in corundum, heat: 1) can either increase or decrease color intensity, 2) it can dissolve rutile to clarify a piece, or 3) exsolve it to create or emphasize chatoyance or asterism. 4) It can be used to partially heal fractures ...
They are considered, evaluated and finally graded for the shade of color and its intensity. Most common of these diamond colors is yellow, orange and brown.
The most important feature of a paraíba tourmaline is exactly that which made the gem famous in the first place—intensity of color. Gems that lack the requisite color intensity or those with too much extinction should not be sold as paraíba.
Hiddenite is strongly pleochroic, meaning there is a color intensity variation when a crystal of it is viewed from different directions. Hiddenite is an attractive gem mineral, but is rare and for the most part known only to collectors.
"Fire" and "brilliance" are terms that describe the intensity of the color and brightness of the light seen in a diamond.
We use tone to indicate the intensity of color. Tones can range from clear (without color) to black. When we add light, dark, darkish or other adjectives to our color descriptions, we are referring to the tone of the color being described.
The more the intensity of the color, more is the value of the stone. This is found abundantly in the countries like India, Sri Lanka, Mozambique, Zimbabwe, and Brazil. This precious stone is also known the "stone of the Vikings".
Badly cut diamonds will respond only to high-intensity white light, or appear dull and lifeless and have dark or washed-out areas. A diamond that has been cut too deep will often have a dark center called a nailhead.
brilliance The richness or intensity of reflections of white light in the face-up position.
brillianteerer The diamond cutter who specializes in the last forty facets of the brilliant cut. See brillianteering.
Luster is the sharpness and intensity of reflections on the pearl's surface; to recognize a finer luster, look at the clarity of images that are reflected in the pearl's surface. The closer to a mirror image you see, the better the luster.
It occurs in a wide variety of colors, including green of high intensity (so-called Imperial Jade), white, mottled green and white, violet, brown, orangey-red, yellow and grayish-green. The black to dark-green variety is known as chloromelanite.
Extinction...Diminution in the intensity of radiation due to absorption by or scattering in the medium; also the stopping of incident X-rays by the outer layers of atoms in a crystal.
Decibels (abbreviated dB) are the unit of measuring the loudness (or intensity) of sounds. 0 dB is the faintest audible sound. The decibel scale is logarithmic.
Even though gold is yellow when pure, the intensity of yellow color depends on volume of other metals alloyed with it. The more the karat weight, more intense is the color.
White Gold ...
 See also: Stone, Color, Gemstone, Jewel, Diamond
  
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