By definition, emerald is any medium to dark green beryl colored by chromium. The historical green color of emerald is unparalleled in the world of gemstones and it is considered as one of the most 'precious four' of all gemstones, which also includes sapphire, ruby and diamond. Almost all natural emeralds contain distinct characteristic inclusions and almost all are treated with oil or resin to fill tiny fissures and cracks. It is the presence of these flaws and oil which makes it quite easy to identify and distinguish natural emeralds amongst other similar gemstones. With emeralds, even more so than other colored gems, it is the color that is the chief determinant of value. Emeralds are most often cut in a special cut designed just for this gem; "the emerald-cut". The emerald cut is a step-cut or trap-cut featuring a rectangular or square shape with truncated corners. This cutting style maximizes the beauty and color of the stone, whilst protecting it from mechanical strain and internal stress.
Since ancient times, Emerald or Panna rashi ratan is regarded as a highly effective astrological gemstone of vedic astrology. According to the classical Hindu literature, emerald gemstone represents small yet powerful planet Mercury (Budh) that bears a strong influence over native's life. It is primarily worn by the natives to strength the weakly placed Mercury in the horoscope and gain its positive influences in life.
The term, sapphires, almost immediately brings up images of stunning blue stones, but the truth is, sapphires are found in a number of colors including yellow. Like all colors, yellow covers a huge range. From natural pastel light yellow and lemon yellow, to the deep orangey yellow or golden yellow, all are magnificent. The brighter and purer the yellow color, the more valuable the sapphire is. Yellow sapphires, like all sapphires, rank 9 on the Mohs scale of hardness, putting these delightful stones right behind the diamond, "the hardest natural substance known to man," which ranks 10 on the scale.
Yellow Sapphire is universally popular for its high aesthetic appeal, mystical astrological benefits and healing powers. It is an important Rashi ratan of Indian Astrology. Often addressed as 'Guru Ratan', this yellow coloured gemstone is regarded as the significator of powerful planet Jupiter (Guru). Regarded as the 'Bringer of Wisdom and Prosperity'.
Rubies can command the highest per-carat price of any colored stone. This makes ruby one of the most important gems in the colored stone market. The color of Ruby ranges from bright red to dark reddish-brown. The most preferred color is a deep blood red with a slightly bluish hue. Such Ruby is known as "Burmese Ruby" or "Pigeon's Blood Ruby". Ruby from Burma is famous for its exceptional coloring, and has traditionally produced the finest Rubies. However, Burmese Ruby rarely exceeds several carats; large flawless Burmese Rubies can be worth millions of dollars. Many Rubies on the market are from Thailand, and these Rubies have a less-desirable brownish hue. Rubies have a long history of enhancement. Unless the seller specifically states the stone is unheated, you should assume that some kind of heat treatment has been used.
As per the Indian astrology, the powerful gemstone is associated with the paramount planet Sun. The Sun which signifies life, energy, passion, enthusiasm, confidence, happiness and vigor impacts human lives greatly.
Sapphires come in a wide range of colors, and each color has its own quality variations. In general, the more intense the color and the fewer the distracting zones of attractive color, the more valuable the stone. Blue sapphires typically have some inclusions, but they generally have better clarity than rubies. Blue sapphires with extremely high clarity are rare, and very valuable. Blue sapphires are mined from a few specific locations throughout the world. Three of the most popular are Burma and Sri Lanka and Madagascar.
Blue sapphire is the gemstone recommended to strengthen Saturn. It can be beneficial to career or work and promote feelings of self-contentment. It is also said to counteract envy and give protection while travelling and from mental anxieties.
A natural pearl begins its life inside an oyster's shell when an intruder, such as a grain of sand slips in between one of the two shells of the oyster. In order to protect itself from irritation, the oyster will quickly begin covering the uninvited visitor with layers of nacre – a mineral substance. Layer upon layer of nacre, also known as mother-of-pearl, coat the grain of sand until the iridescent gem is formed.
Natural pearls are so rare to find in nature that most pearls sold today are cultured. To create a cultured pearl, a tiny bead is implanted by a human into the oyster and gradually over time the oyster coats the bead in many layers of natural minerals and proteins. There are 4 types of pearls: Freshwater Pearls, and Saltwater pearls which include South Sea, Akoya & Tahitian. Most jewellery is made with Freshwater pearls that are grown in China due to its affordability.
Pearl is to be worn to strengthen Moon in the horoscope. It has an extremely calming influence on the mind and increases feelings of love, and compassion for other people. The pearl may increase peace of mind and enable the practice of spiritual meditations with greater concentration.
Coral is one of the most ancient gems that is widely used in jewelry for thousands of years. Coral is formed by the marine animals living in the sea known as coral polyps. The skeleton of coral polyps made a cluster and form colonies, reefs or islands. Coral is naturally dull; polishing is required to bring out its glassy luster.
Red coral (Moonga), according to Vedic Astrology, is the primary gemstone for Mars. It is said to be warming and invigorating.
Cat's Eye Gemstones like the eye of a cat or a panther; Cat's Eye seems almost supernatural in origin. Cat's-eye is a variety of chrysoberyl which has a distinct band of light across its face, which sweeps from side to side.
According to Vedic Astrology, Cat's Eye is the gemstone related to Ketu (the moon's descending node) which is a shadowy entity called "planet of enlightenment". It empowers spiritual tendencies, asceticism, non-attachment and psychic powers as well. Wearing a Cat's Eye is said to exalt spirituality and psychic ability, and protect from mysterious dangers and diseases.
Also known as the "cinnamon stone," hessonite is the yellow-orange to reddish orange variety of garnet. Usually included, sometimes heavily, some hessonites may also contain eye visible inclusions. However, unless they affect structural integrity, such inclusions don't usually detract from hessonite's value.
Hessonite is associated to Rahu in Vedic astrology. Rahu is not a planet per se; rather it is the north node of the moon and is known as the dragon's head in Vedic astrology. The north node of the moon is the north point on the moon's orbit which crosses the ecliptic. Hessonite can be a very powerful stone. It is similar to Blue Sapphire and because of its destructive power, it is feared by many. A pure and transparent Hessonite gemstone neutralizes the perceived negative effects of Rahu. It is said to remove fear, create clarity of mind, and help in spiritual growth.