How to Check if a Gemstone is Natural – Gemstone Buying Guide | असली रत्न की पहचान
How do you know a gemstone is real, natural and untreated? This guide answers the most common questions buyers ask before spending on a natural gemstone — from home tests to lab reports — written by the team at Tushar Gems, dealing in certified gemstones since 1998.
The 4 checks before you buy
- Lab report from a recognised, preferably government-approved, laboratory
- Verify the report number online — see how to verify a gemstone certificate
- Read the treatment line — untreated, heated, oiled, filled
- Compare the per-ratti rate — see our gemstone price in India guide
Frequently asked questions
How to check if a gemstone is natural?
The reliable way is a laboratory report. Gem labs test refractive index, specific gravity and inclusions under magnification to confirm whether a stone is natural, synthetic or an imitation. Home tests (water, scratch, fire) are not reliable and can damage the stone.
How to check if a gemstone is untreated or unheated?
Only a laboratory can confirm this. The report states treatments such as heating, oiling, glass filling or diffusion. Ask the seller for the report and check the treatment line before you pay.
How to identify the purity of gemstones?
Purity means the stone is what it claims to be and how clean it is. Identity and treatment come from the lab report; clarity you can judge by eye and with a loupe — fewer visible inclusions generally means a better stone.
How to identify the specific gravity of a gemstone?
Specific gravity is measured by a gemmologist using a hydrostatic balance or heavy liquids. It helps separate similar-looking stones, which is why it is part of a lab test rather than something to try at home.
Natural or lab-grown gemstones — what is the difference?
Lab-grown (synthetic) stones have the same composition as natural stones but are made in a factory and cost far less. Vedic astrology traditionally uses natural stones. A lab report states whether a stone is natural or synthetic.
Do gemstones really work?
Wearing gemstones is part of Vedic astrology (Jyotish) tradition, and experiences differ from person to person. There is no scientific proof, so we never promise results. We recommend choosing a stone only after a kundli check.
What are the benefits of wearing gemstones?
In Vedic tradition each gemstone is linked to a planet and is worn to strengthen that planet in your chart. Gemstones are also valued for their beauty and as lasting jewellery and gifts.
How to decide the carat weight of a gemstone for astrology?
A common traditional guideline is body weight in kg ÷ 10 = minimum ratti (for example, 70 kg → 7 ratti). A heavier stone is fine; a lighter one is generally avoided. Your astrologer may suggest a different weight.
How to wear astro gems?
Follow the Vedic method: wear the stone on its day, on the advised finger, in the advised metal, after purifying it and chanting its mantra (pran pratishtha / energisation). Each stone's day, finger, metal and mantra are in our stone guides.
Is it safe to buy gemstones online?
Yes, when the seller shows the real stone, gives a lab report number you can verify online, ships insured and has a clear written policy.
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