The founder of Kitirin Jewelry is the collector of the finest quality sapphire and other gemstones, which we made them more valuable and beautiful by exceptional design. We concern on the superior quality at every stage, from selection of finest materials to expert workmanship to our customer service commitment. Each beautiful piece reflects supreme delicateness, modernness and preciousness.
The expertise of material selection :
The word of “Gemstone” is a piece of mineral, which, in cut and polished form, is used to make jewelry or other adornments. Kitirin Jewelry, with the experiences over 4 decades and expertise of selecting the quality and valuable precious stones at every stage which are shown below
Each Gemstone has their own characteristic that is classified into different groups, species, and varieties. First stage of authentication is to observe the physical characteristics which exceptional expertise is significant. Besides, we also have the gemstones authentication instrument, for example, Polariscope, Refractometer, Dichroscope, Heavy liquid, Fluorescence, and Spectroscope. These instruments can guarantee that all material is the finest quality from the first stage.
We set up the criteria of beautifulness by consideration from refractive index, dispersion, and luster. Also, “water” is a recognized grading of gem’s luster and transparency and brilliance.
Rarity is another characteristic that lends value to a gemstone. Many gemstones are used in even the most expensive jewelry, depending on the brand name of the designer, fashion trends, market supply, and treatments, which we also concern side by side of quality.
The finest gemstones, besides beautifulness, the durability is significant. The overall of physical condition must be stable from temperature changed.
A description of the way light interacts with the surface of a crystal, rock, or mineral. A range of terms is used to describe luster. Many terms refer to materials having similar luster, such as:
- Adamantine minerals possess a superlative luster, which is most not able seen in diamond. Such minerals are transparent or translucent, and have a high refractive index.
- Metallic minerals have the luster of polished metal (and with ideal surfaces will act like a mirror). Examples include galena, pyrite and magnetite.
- Vitreous minerals have the luster of glass. This type of luster is one of the most commonly seen, and occurs in transparent or translucent minerals with relatively low refractive indices. Common examples include calcite, quartz, topaz, beryl, tourmaline and fluorite, among others.
- Waxy minerals have a luster resembling wax. Examples include jade and chalcedony.
- Greasy minerals resemble fat or grease. A greasy luster often occurs in minerals containing a great abundance of microscopic inclusions, with examples including opal and cordierite.
- Pearly minerals consist of thin transparent co-planar sheets. Lights reflecting from these layers give them a luster reminiscent of pearls. Such minerals possess perfect cleavage, with examples including muscovite and stilbite.
- Silky minerals have a parallel arrangement of extremely fine fibers, giving them a luster reminiscent of silk. Examples include asbestos, ulexite and the satin spar variety of gypsum. A fibrous luster is similar, but has a coarser texture.
- Resinous minerals have the appearance of resin, chewing gum or (smooth surfaced) plastic. A principal example is amber, which is a form of fossilized resin.
Hue is most commonly understood as the "color" of the gemstone. Saturation refers to the vividness or brightness or "colorfulness" of the hue, and tone is the lightness to darkness of the hue.
The color of any material is due to the nature of light itself. Daylight, often called white light, is actually a mixture of different colors of light. When light passes through a material, some of the light may be absorbed, while the rest passes through. The part that is not absorbed reaches the eye as white light minus the absorbed colors. A ruby appears red because it absorbs all the other colors of white light
Cutting and polishing :
A few gemstones are used as gems in the crystal or other form in which they are found. Most however, are cut and polished for usage as jewelry. The two main classifications are stones cut as smooth, dome shaped stones called cabochons, and stones which are cut with a faceting machine by polishing small flat windows called facets at regular intervals at exact angles.
The "four Cs" (color, cut, clarity and carats), has been introduced to help the consumer understand the factors used to grade a gemstone. The four criteria carry different weight depending upon whether they are applied to colored gemstones or to colorless diamond. In diamonds, cut is the primary determinant of value, followed by clarity and color. Diamonds are meant to sparkle, to break down light into its constituent rainbow colors (dispersion), chop it up into bright little pieces (scintillation), and deliver it to the eye (brilliance).
In gemstones that have color, including colored diamonds, it is the purity and beauty of that color that is the primary determinant of quality. Physical characteristics that make a colored stone valuable are color, clarity to a lesser extent.