Birthstones have been cherished for centuries as they hold special significance and meaning for individuals born in each month. These gemstones, often adorning jewelry, provide a unique way to celebrate one's birth and possess various qualities and symbolism.In this article, we will explore the world of birthstones, their modern and …

Prescription of Gemstone is one of the most important aspects of remedies in Astrology as expounded by our ancient sages. The use of Gemstone is also endorsed by sastras such as Garuda Purana, Briht Samhitha etc., which gives elaborate description of the nature of the Gemstones and their use. Keywords: Astro remedies, navarathna, lucky stones. 1.

Mallo (2012) affirmed that mining of gemstone is carried out by artisanal and small-scale miners who are typically untrained and contribute largely to environmental degradation, …

before you can attempt to assess the price of your gemstone. The following chapter is describes how to assess each of these qualities in your gem mineral. 2.2 Gemstone Enhancement Potential The value of a gemstone is determined by the famous 4 big C's: Colour Clarity Cut or shape (or the potential for cutting) Carat (or the carat after cutting)

Disclaimer: This corrigendum has been published by the Buyer after due approval of the Competent Authority in Buyer Organization. Buyer organization is solely responsible for the impact of the above clauses on the bidding process, its outcome and consequences thereof including any eccentricity / restriction arising in the bidding process owing to publication …

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Gemstone jewelry settings, metals, tools, cutting & faceting stones. Gemstone Encyclopedia. List of all gemstones from A-Z with in-depth information for each. Gem Photo Gallery. Thousands of gem photos searchable by …

Discover the perfect fit for your gemstone with the Standard Gem Sizes Chart at Melogems! Our comprehensive chart not only outlines the standard sizes for popular gem cuts but also guides you on estimating gem weight based on size. This valuable resource empowers gem enthusiasts and industry professionals alike, aiding in …

Mining of gemstones in Nigeria is an old practice. Nigeria is known for the availability of different gemstones including corundum, beryl, quartz and its varieties, tourmaline, …

The purpose of this qualitative study was to investigate the difficulties of gemstone artisanal and small-scale mining, as well as, provide ways to mitigate the …

Gemstones of Nigeria: An Overview of Their Geological Occurrence, Provenance and Origin. By Moses OLADE. See Full PDF. Download PDF. Gemstones are a special …

Illustrated Printable Gemstone Meaning Cards Free for personal use only. See More Premium Illustrated Cards. Small Crystal Information Cards for Shop Owners These printable gemstone properties & crystal descriptions are great for sellers to include when selling gems. Customers like to know a little more about the meaning of what they are …

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Birthstones are gemstones that represent each month of the year and have special meanings and symbolism. Learn about the history, lore, and properties of birthstones from GIA, the world's leading authority on gemology. Whether you are looking for a gift, a personal adornment, or a way to express your personality, birthstones can offer you a …

Gemstone identification requires a good reference library and some basic gemology tools. Before you go shopping, learn more about what... Read More. Spectroscope Instructions for Novice Gemologists. The spectroscope is one of gemology's principal tools. Our basic spectroscope instructions will teach you how to operate and calibrate...

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Gemstone Lights controllers use proprietary technology that allows you to change the designs to fit the time of year, the occasion, or the mood that you are after – wherever you are. Using cloud technology and our custom Gemstone Lights app, you can control your lights from your iOS or Android smartphone as often as you like. ...

Get started with the International Gem Society's free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist! Email Address. Submit. The International Gem Society (IGS) is the world's top resource for gem professionals, enthusiasts, and industry content.

This paper presents an overview of the geological occurrence, distribution, provenance and origin of Nigerian gemstones, and the potential application of the …

A Review of Gemstone Occurrences, Provenance, and Origins in Nigeria

Gemstone mining in Sri Lanka is mostly from secondary deposits. The gravels yield sapphire, ruby, 's-eye and other chrysoberyls, spinel, garnet, beryl, tourmaline, topaz, quartz, and many other gemstones. Sri Lanka's gem-bearing gravels, called illam, are some of the richest in the world. The island was blessed with geological …

Gemstones.—Plateau State accounted for much of Nigeria's reported gemstone production. Gemstones were mined on the Jos Plateau by artisanal miners. In 2017, …

Get started with the International Gem Society's free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist! Email Address. Submit. The International Gem Society (IGS) is the world's top resource for gem professionals, enthusiasts, and industry content.

Faceting means fashioning the surface of a gemstone in a design of small faces (or "facets"). Usually, these facets are polished, but in some cuts certain facets are left "frosted" to cr eate special effects. F acets are flat surfaces. Another style of gemstone cutting produces a rounded surface or cabochon.

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The Three Muses gemstone is a faceting design based on the number 3. These notes, diagrams, and instructions will show... Read More. The Gemstone Butterfly Cut. The Gemstone Butterfly is a stunning design for a custom-cut gem. Our step-by-step guide will show you how to facet...

Specifications of the GL Gem Spectrometer™ Weight: 520 grams Dimensions: 170 mm x 84 mm x 59 mm Detector: Toshiba TCD1304DG linear array – Pixels: 3648 Pixel size: 8 um x 200 um Range: 300 – 1000 nm (optimized for VIS-NIR 400 – 950 nm range) Signal-to-noise ratio improved: 500:1, 16 bit A/D resolution; fast onboard averaging Diffraction …

Gem stone production includes three steps, (1) mining, (2) processing, and (2) enhancement. These steps ar e discussed in greater detail below. 2. General Process Flow Mining Gem stone mining operations vary according to size and complexity. Small shallow deposits are generally mined by a few people with prybars, picks, shovels, and …

Lab-created cubic zirconia (CZ) can be used to imitate the appearance of many gemstones. Although most well-known as a diamond simulant, this material can be manufactured in different colors, like this teal, star-cut piece.However, CZ's properties still differ from those of other gems, so gemologists can usually distinguish them.

10 mm Carat Weight: Round Princess Marquise Emerald Pear Oval Heart 5 mm 4.1 5.2 6.5 7.4 8.2 8.8 9.4 10.2 11.2 0.2 0.5 1.0 1.5 2.0 2.5 3.0 4.0 5.0 3.4 4.35 5.5 6.5 7. ...