When sourcing crystal trees, the authenticity of the gemstones is paramount. Ensure the supplier uses natural semi-precious stones (such as Amethyst, Citrine, or Rose Quartz) rather than dyed glass or resin. The 'trunk' and 'branches' should be made of high-quality copper wire that is flexible yet sturdy enough to hold the weight of the stones without sagging. For the base, natural geode clusters or polished wood are preferred over plastic to ensure structural stability and premium aesthetic appeal.