Green diamonds obtain their color through exposure to naturally-occurring radiation.
There are 12 colors in the spectrum of fancy colored diamonds: Yellow, Orange, Pink, Blue, Green, Brown, Violet, Gray, Purple, Red, Fancy Black, and Fancy White. It is always the last term in the full diamond color (ex. fancy dark yellowish green).
The clarity grade of a stone indicates how many internal and external imperfections a diamond has. Clarity is graded based on six categories, each with their own subcategories: Flawless, Internally Flawless, Very Very Slight Inclusion, Very Slight Inclusion, Slight Inclusion and Inclusion.
A carat is the unit of mass by which diamonds are weighed. One carat equals 200 mg.
The intensity of a diamond’s color is graded on a nine level scale: Faint, Very Light, Light, Fancy Light, Fancy, Fancy Dark, Fancy Intense, Fancy Deep, Fancy Vivid. Intensity is the first term in the diamond color (ex. fancy dark yellowish green).
The polish is determined by how well the diamond was manufactured (cut and polished). A diamond with excellent polish should be totally smooth on the surface.
The symmetry of a diamond refers to how proportionate all the cuts and facets on the diamond are.
Whether you’re looking for vibrant green or yellow diamonds, delicate pink diamonds that are perfect for a romantic gift, stately gray or black diamonds, or chameleon diamonds that are sure to inspire amazement, Asteria offers the highest quality of rare colored diamonds in a variety of hues, tones, saturations – and price points.
Our colored diamonds for sale come in a variety of shapes, including classic shapes such as round, princess, and marquise, as well as in a variety of non-conventional shapes that maximize the stone's natural color.
Our diamonds are of the highest quality and extremely rare, having been created by organic processes over millions of years. Carefully selected for their quality, our natural colored diamonds are evaluated based on a standardized grading scale that measures the cut, color, clarity of each stone.
As color values are the most important factor in determining prices for colored stones, our diamonds are stringently measured by standardized color parameters. These include measurements of the hue (which represents the stone’s primary shade) tone, (which measures the penetration of light), and saturation (which gauges the intensity of the color.)
Our diamonds are inspected by the world’s leading gemological institutes and come with a certificate that testifies to the origin and authenticity of each stone, in addition to listing the diamond’s unique characteristics and color qualities.