Power of Gemmology By Prachur Singhal

Today in this update i will be telling you about the birthstones , in which gemstone to be worn in which month as per the British calendar or culture. like in india we wear the gemstones as per the horoscopes and with astrological concern. same British culture wear them as birthstones. PRESENT DAY BIRTHSTONES :-

DIAMOND SIMULANTS A  diamond simulant  is a stone that looks similar to real  diamond  and shares some of its characteristics. Although  simulants  are used as  diamond  imitations, they have a different chemical structure from real  diamonds . Some  simulants  occur naturally, while others are created artificially. you can see the different simulants comparing the diamond in the image below  While the appearance of diamond simulants is similar to that of natural diamonds, they are not diamonds. Common diamond simulants include glass and cubic zirconia (CZ), both of which are completely unrelated to diamond at the atomic level. Simulants are, of course, less expensive than the real thing. They allow consumers to enjoy the flash and dazzle of diamond-like jewelry and to inexpensively complement the latest fashion trend. But no matter how convincing the illusion, all diamond simulants have optical and physical characteristics that can be identified by a trained gemologis

DIAMOND FLUORESCENCE Diamond’s Reaction to Long Wave UV Rays A very interesting topic about diamond fluorescence that how diamond get energised when they are exposed to the long wave UV rays and their electrons get highly charged when diamonds came across the light that after UV light has been switched off they still emit blue color. Fluorescence is the visible light some diamonds emit when they are exposed to invisible ultraviolet (UV) rays. On a GIA diamond grading report, fluorescence refers to the strength, or intensity, of the diamond’s reaction to long-wave UV, which is an essential component of daylight. The light emitted lasts as long as the diamond is exposed to the ultraviolet source. Approximately 25% to 35% of the diamonds submitted to GIA over the past decade, exhibit some degree of fluorescence. However, only 10% of those show strengths of fluorescence that may impact appearance (i.e., strengths noted on laboratory reports as medium, strong or very

CARING FOR YOUR DIAMOND As we know that diamond is forever and its a stone which is known as symbol of love and is attached with people in emotional way. So in today's topic we will be discussing about caring of our diamonds and its jewelry. Diamonds are remarkably durable, resist scratching (except by other diamonds) and maintain their brilliance over time. But diamonds aren’t indestructible. They can be chipped by a sharp blow, become loose or lost in a weakened setting, or be damaged by contact with other diamonds or carbon elements near your surroundings . Wear diamond jewelry with care. Store it in padded boxes or soft bags separate from other jewelry. Clean your jewelry by wiping it with a lint-free cloth or with warm water, mild soap and a soft toothbrush, or by dipping it briefly in a commercial cleaning solution. Have your diamond jewelry periodically cleaned and its setting examined by a professional jeweler to maintain its beauty and integrity over time.

A Diamond’s Cut Unleashes Its Light A diamond’s cut is crucial to the stone’s final beauty and value. And of all the diamond 4Cs, it is the most complex and technically difficult to analyze. To determine the cut grade of the standard round brilliant diamond – the shape that dominates the majority of diamond jewelry – GIA calculates the proportions of those facets that influence the diamond’s face-up appearance. These proportions allow GIA to evaluate how successfully a diamond interacts with light to create desirable visual effects such as: Brightness:  Internal and external white light reflected from a diamond Fire:  The scattering of white light into all the colors of the rainbow Scintillation:  The amount of sparkle a diamond produces, and the pattern of light and dark areas caused by reflections within the diamond

DIAMOND CLARITY Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep in the earth. This process can result in a variety of internal characteristics called 'inclusions' and external characteristics called 'blemishes.' Evaluating diamond clarity involves determining the number, size, relief, nature, and position of these characteristics, as well as how these affect the overall appearance of the stone. While no diamond is perfectly pure, the closer it comes, the higher its value. The GIA Clarity Scale has 6 categories, some of which are divided for a total of 11 specific grades. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. To the naked eye, a VS1 and an SI2 diamond may look exactly the same, but these diamonds are quite different in terms of overall quality. This is why expert and accurate assessment of clarity is extremely important.