NATURALRARITY.
LunkaGemExchange is your partner for gemstone investments — with two decades of experience and leadership in natural, unheated coloured stones sourced from Sri Lanka and Thailand.
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A Bangkok Eye for Colour.
Born and based in Thailand, Meena leads LunkaGemExchange from Bangkok — the heart of the global coloured-stone trade. Her work bridges the cutting houses of Chanthaburi with the legendary mines of Sri Lanka.
Every stone in this collection is hand-selected by Meena herself, chosen for natural origin, honest treatment and the quiet brilliance that only a trained eye can find.
From the gem fields
of Ratnapura.
Origin Verification
Full traceability from the specific mine location. We never compromise on transparency.
Private Viewings
Concierge service for serious collectors in Bangkok, Colombo and Geneva by appointment.
Secure Exchange
Insured global shipping and escrow-protected transactions for complete peace of mind.
Lab Certified
Every investment-grade stone ships with a GIA, Gübelin, GRS or SSEF report.
Begin a private conversation.
Whether you are searching for a specific stone or building a collection, every inquiry is answered personally by Meena.