Power of Gemmology By Prachur Singhal

What are Gemstones? Gemstones are basically rocks or minerals that are cut and polished to enhance their natural beauty. They are of various colors and shapes. Human kind has always been fascinated by gemstones and their beauty. Today, gemstones are used for astronomical as well as ornamental purposes. The beautiful cut, shine, and shapes attract a lot of people from all over the world. Why should you wear gemstones? There are many reasons why you should wear gemstones. Traditionally, they are believed to remove all the negative energies attached to any zodiac sign. There are different gemstones for all zodiac signs, so you can benefit a lot by wearing a gemstone of your zodiac sign. Opal, yellow sapphire, emerald,  ruby , red coral etc are the names of a few gemstones which are said to possess great powers. It is said that they transfer energies to people by body contact and cures many diseases. It is also said that they are bring good luck with them. So if you are havi...

HPHT Synthetic Diamond Melee Without Si or Ni Defects Figure 1. These four near-colorless round brilliant melee were identified as HPHT synthetic diamonds lacking the typical Si- and Ni-related defects.  Near-colorless synthetic diamond melee grown using the high-pressure, high-temperature (HPHT) method have created significant concern in the industry, and various screening methods have been developed to take into account their most reliable distinguishing features. In general, the specimens described in previous Lab Notes (e.g. Summer 2015, pp. 183–184) were very small round faceted goods ranging between 0.005 and 0.01 ct. Recently GIA’s Bangkok laboratory received four loose near-colorless round brilliants for quality assurance service (figure 1). They weighed between 0.07 and 0.09 ct, slightly more than previously submitted melee. All were identified as type IIb HPHT-grown material using Fourier-transform infrared (FTIR) spectroscopy. Their most interesting featur...