Knowledge Center

How Rudraksha, gemstones, crystals and organic gems are tested and identified — written by the laboratory, for anyone who wants to understand what they own.

105 guides · updated regularly · RSS
All guides — page 2
Care & Tradition

Storing Gemstones Safely: Hardness, Light, Humidity and Each Other

Most gem damage happens in the drawer. How hardness, light, heat, humidity and chemicals affect stored gems, and how to store each kind.

3 min
Gem Testing

The Spectroscope: Reading Absorption Lines in a Gemstone

The spectroscope shows the dark lines where a stone absorbs light. Why those lines identify the colouring element, catch dye and expose cobalt glass.

3 min
Gem Testing

Specific Gravity: Weighing a Stone Against Water

Specific gravity is density against water. How a lab measures it by hydrostatic weighing, the SG of common gems, and why it is the key test for beads.

3 min
Buyer Protection

Capped Rudraksha: What Silver and Gold Caps Can Hide

Caps cover the poles of a Rudraksha — exactly where carving and joins show. Why to buy uncapped, test, then cap, and how a lab handles a capped bead.

3 min
Organic Gems

Shell, Bone and Plastic Beads: Identifying the Everyday Organics

Shell, mother-of-pearl, bone and horn are all imitated in plastic. The layered, canalled and fibrous structures that identify each natural material.

3 min
Crystals

Selenite and Satin Spar: The Gypsum Crystals and How Fragile They Are

Most 'selenite' sold is satin spar, the fibrous form of gypsum. How the two relate, how gypsum is identified, and why it dissolves in water.

3 min
Rudraksha

Wormholes, Cracks and Natural Flaws: Which Ones Matter

Genuine Rudraksha have natural flaws. How a lab distinguishes cosmetic from structural defects, and which affect durability rather than authenticity.

4 min
Rudraksha

The Rudraksha Water Test: Why Sinking Proves Nothing

A genuine Rudraksha does not have to sink. The physics of why the water test proves nothing, why fakes pass it, and what to do instead.

4 min
Rudraksha

Elaeocarpus ganitrus: The Botany Behind the Bead

Rudraksha is the stone of the Elaeocarpus ganitrus fruit. Where the tree grows, how the fruit forms its chambers, and why botany explains the tests.

4 min
Rudraksha

Size, Weight and Density: What the Numbers on a Rudraksha Report Say

Why every bead is weighed and measured, what size and weight say about origin, and how to use the figures to confirm your bead is the one tested.

4 min
Rudraksha

Polished, Oiled and "Aged": Surface Treatments on Rudraksha

Most Rudraksha are oiled, polished or stained before sale. Which treatments are harmless, which hide carving, and how a lab describes the surface.

3 min
Rudraksha

Testing a Rudraksha Mala: Can Every Bead Be Verified?

A 108-bead mala cannot be tested bead by bead at full depth. How a lab examines a mala, what sampling establishes, and what a mala report states.

3 min
Rudraksha

Internal Compartments and Seeds: Reading a Rudraksha X-Ray

How to read a Rudraksha X-ray: what the compartments and seeds look like, how they are counted, and the patterns that reveal carving or joining.

4 min
Care & Tradition

Rudraksha in Scripture and Tradition

Where the Rudraksha appears in Hindu texts, what the traditions say about its origin and its mukhi, and how a laboratory relates to beliefs it does not test.

3 min
Rudraksha

Wood, Areca Nut, Plastic and Resin: What Fake Rudraksha Are Made From

Imitation Rudraksha are made from turned wood, areca nut, moulded plastic and cast resin. What each looks like and how a lab identifies it.

4 min
Rudraksha

Collector Grade vs Wearing Grade: How Rudraksha Quality Is Judged

Authenticity and quality are different questions. The features that separate an exceptional bead from an ordinary genuine one, and why grade is opinion.

3 min
Rudraksha

A Buyer's Checklist for Rudraksha

A practical sequence for buying any Rudraksha — what to ask for, what to check on arrival, when to test — that works with any seller.

3 min
Navratna

Ruby (Manik): Identification, Treatments and What Is Sold in Its Place

How a laboratory confirms ruby, separates it from garnet, spinel, glass and synthetic corundum, and detects the heating and glass filling that set its value.

3 min
Not sure what you own?

The laboratory examines Rudraksha, gemstones, malas, bracelets and crystals and issues a numbered, PIN-protected report you can verify online at any time.