Certification Guide
When you invest in fine jewellery, you deserve complete confidence in what you are buying. The value of a precious stone or gold ornament is determined by its gemological makeup, natural rarity, and finished quality. Two pieces that look identical can have very different values — and only a certified piece gives you the full truth.
At KEIAN Luxandor, every piece of jewellery we offer is certified by trusted, internationally recognised authorities. Our certifications are your guarantee that what you see is exactly what you get — in purity, quality, and value.
BIS Hallmark is India's official gold purity certification, issued by the Bureau of Indian Standards (BIS) under the Government of India. It is the most trusted and widely accepted gold certification in the country.
- Guarantees the exact gold purity stated on the piece
- Protects you from adulteration and fraud
- Recognised by every jeweller in India for exchange or resale
- Mandatory for all gold jewellery sold in India as per government regulations
- BIS Standard Mark — A triangular mark confirming third-party evaluation
- Purity and Fineness Grade — Example: 916 for 22KT, 750 for 18KT
- Assaying and Hallmarking Centre Mark — The lab that certified the piece
- Jeweller's Identification Mark — Unique code of the jeweller
The International Gemological Institute (IGI) is one of the world's largest and most respected independent gemological laboratories. Founded in Antwerp, Belgium, IGI operates globally and is one of the most trusted names in diamond and jewellery certification.
- IGI certificates are recognised and accepted worldwide
- Provides a detailed grading report on every diamond
- Covers all 4Cs — Carat, Cut, Colour, and Clarity
- Gives buyers complete confidence when purchasing or reselling diamonds
- Diamond shape and dimensions
- Carat weight
- Cut, Colour, and Clarity grades
- Polish and symmetry details
- Fluorescence details
- Unique IGI report number for verification
Solitaire Gemmological Laboratories Ltd. (SGL) is an independent international gem testing laboratory, headquartered in London with centres across India including Mumbai, Bangalore, Chennai, Hyderabad, Pune, Jaipur, Thrissur, and Coimbatore. SGL is trusted by jewellers and consumers alike for its strict standards of reliability, consistency, and integrity.
- SGL reports represent the highest standard of reliability in India
- Certifies both loose diamonds and mounted diamond jewellery
- Supports gemological research worldwide
- Each certificate carries the SGL Diamond Trust Mark
- Diamond weight and measurements
- Cut, Colour, and Clarity grades
- A fifth C — Confidence — in your diamond's quality
- Diamond Jewellery Report for mounted pieces
- Online report verification available
Gemological Science International (GSI) is a globally recognised gemological laboratory headquartered in New York, USA. It is one of the leading independent certification bodies in the world, offering grading, identification, and appraisal services for diamonds, coloured stones, and jewellery.
- Uses advanced proprietary technology for grading
- Detects treatments and enhancements that may affect a diamond's value
- Provides comprehensive reports including cut, colour, clarity, and fluorescence
- Trusted by jewellers and consumers globally
- Full 4Cs grading report
- Fluorescence and symmetry details
- Advanced detection of any treatments or enhancements
- Unique GSI report number for online verification
When you receive your KEIAN Luxandor jewellery, your certification document will include:
Always keep your certificate safe. It is as valuable as the jewellery itself — especially for future exchange, resale, or insurance purposes.
At KEIAN Luxandor, we are committed to responsible and ethical sourcing. All our diamonds are:
- Conflict-free and sourced in accordance with the Kimberley Process Certification Scheme
- Obtained from legitimate and transparent supply chains
- Responsibly mined with full traceability
We believe that beautiful jewellery should carry no burden — only joy.
Diamond Collection
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