# MantraMani > MantraMani is an Indian brand of natural gemstone, rudraksha and crystal jewellery, trading as Uniblur Spectrum LLP from Kolkata, West Bengal. Every product is independently tested by a government-approved, ISO 9001:2015 certified gemmological laboratory and ships with its lab report. Authenticity is backed by a 10X guarantee: prove a product is not natural at an independent NABL-accredited laboratory within 30 days and the refund is ten times the order value, capped at ₹50,000, with full terms on the guarantee page. Prices are in Indian rupees, shipping within India is free with no minimum order, and cash on delivery is available. The catalogue runs to roughly 420 products, mostly between ₹300 and ₹2,500. Stones are described in the vocabulary of Vedic astrology and Indian tradition — rashi, chakra, graha, dosha. Where a page states what a stone is worn for, that is a statement of traditional or cultural association. ## Products - [All products](https://www.mantramani.com/collections/all): the complete catalogue - [Crystal bracelets](https://www.mantramani.com/collections/bracelets): 8 mm bead bracelets, the core range, about 75 designs from ₹299 - [Rose quartz](https://www.mantramani.com/collections/rose-quartz), [green aventurine](https://www.mantramani.com/collections/aventurine), [green jade](https://www.mantramani.com/collections/jade), [turquoise](https://www.mantramani.com/collections/turquoise): the most-ordered stones - [Shop by zodiac sign](https://www.mantramani.com/collections/shop-by-zodiac-sign): one bracelet per rashi, with the Hindi and Sanskrit sign name - [Shop by birthstone](https://www.mantramani.com/collections/shop-by-birthstone) - [Shop by chakra](https://www.mantramani.com/collections/shop-by-chakra) - [Shop by planet](https://www.mantramani.com/collections/shop-by-planet) and [by dosha](https://www.mantramani.com/collections/shop-by-dosha): Vedic astrology groupings - [Shop by purpose](https://www.mantramani.com/collections/shop-by-purpose): traditional intention groupings - [Rudraksha](https://www.mantramani.com/collections/rudraksha) and [japa malas](https://www.mantramani.com/collections/mala) - [Certified loose gemstones](https://www.mantramani.com/collections/loose-gemstones) - [Pendants](https://www.mantramani.com/collections/pendants), [rings](https://www.mantramani.com/collections/crystal-rings), [anklets](https://www.mantramani.com/collections/anklet) - [Vaastu and home](https://www.mantramani.com/collections/vaastu): crystal trees, pyramids, pyrite frames, selenite plates ## Guides - [Rashi ratna buying guide](https://www.mantramani.com/pages/rashi-ratna-buying-guide): how zodiac gemstones are traditionally chosen - [Genuine vs fake gemstone: how to verify](https://www.mantramani.com/pages/genuine-vs-fake-gemstone-verify) - [Real vs fake pyrite](https://www.mantramani.com/blogs/news/real-vs-fake-pyrite): the checks that distinguish natural pyrite from imitation - [Rudraksha mukhi guide](https://www.mantramani.com/blogs/news/rudraksha-mukhi-guide): what 1 to 14 mukhi means - [Crystal bracelet guide](https://www.mantramani.com/blogs/news/crystal-bracelet-guide): types, and how to choose one - [How to cleanse and charge crystals](https://www.mantramani.com/blogs/news/how-to-cleanse-charge-crystals) - [Understanding gemstones and their Vedic significance](https://www.mantramani.com/pages/understanding-gemstones-and-their-vedic-power) - [Gemstone finder tool](https://www.mantramani.com/pages/gemstone-finder-tool), [numerology calculator](https://www.mantramani.com/pages/numerology), [daily horoscope](https://www.mantramani.com/pages/horoscope) - Stone comparisons: [amethyst vs clear quartz](https://www.mantramani.com/pages/amethyst-vs-clear-quartz), [rose quartz vs amethyst](https://www.mantramani.com/pages/rose-quartz-vs-amethyst), [tiger eye vs citrine](https://www.mantramani.com/pages/tiger-eye-vs-citrine), [aventurine vs green jade](https://www.mantramani.com/pages/aventurine-vs-green-jade), [lapis lazuli vs sodalite](https://www.mantramani.com/pages/lapis-lazuli-vs-sodalite), [black tourmaline vs onyx](https://www.mantramani.com/pages/black-tourmaline-vs-onyx), [carnelian vs garnet](https://www.mantramani.com/pages/carnelian-vs-garnet), [selenite vs clear quartz](https://www.mantramani.com/pages/selenite-vs-clear-quartz), [citrine vs amethyst](https://www.mantramani.com/pages/citrine-vs-amethyst) - [FAQs](https://www.mantramani.com/pages/faqs) ## Trust and policies - [Authenticity guarantee, with the 10X refund terms](https://www.mantramani.com/pages/authenticity-guarantee) - [Certificate verification](https://www.mantramani.com/pages/certificate-verification): look up the lab report for a delivered order using the order number and last name. This is a post-purchase lookup against the store's own order records, not a pre-purchase check - [Pricing and certification](https://www.mantramani.com/pages/mantramani-pricing-certification) - [Shipping policy](https://www.mantramani.com/policies/shipping-policy): free shipping across India, dispatch in 0 to 1 day, delivery in 3 to 5 days - [Refund policy](https://www.mantramani.com/policies/refund-policy): 7-day return window, free return by post - [Privacy policy](https://www.mantramani.com/policies/privacy-policy), [terms of service](https://www.mantramani.com/policies/terms-of-service), [disclaimers](https://www.mantramani.com/pages/disclaimers) - [About MantraMani](https://www.mantramani.com/pages/about-us) ## Contact - WhatsApp: +91 92428 51566 - Email: blessings@mantramani.com - Registered address: Uniblur Spectrum LLP, 259/1 GN Block, Sector-V, Salt Lake City, Kolkata 700091, West Bengal, India - Also sold on Amazon.in ## Optional - [Affiliate programme terms](https://www.mantramani.com/pages/affiliate-terms) - [Astrologer partners](https://www.mantramani.com/pages/astrologer-partners) - [Sitemap](https://www.mantramani.com/wp-sitemap.xml)