Authenticity Guarantee – London Diamond Exchange

Certified Materials & Verified Authenticity

At LDX, every piece we create is backed by a strict and transparent authenticity standard. Our lab diamonds are independently certified by the IGI, ensuring full traceability, accurate grading, and complete confidence in the quality of every stone. All solid-gold pieces are crafted in genuine 10ct or 18ct gold, and every silver component is hallmarked by the London Assay Office, confirming both metal purity and full compliance with UK hallmarking regulations.

Precision Inspection & Proven Provenance

Our refined collection stones undergo SiC verification to guarantee authenticity, consistency, and long-term durability. For added security and documentation, we photograph the IGI girdle serial numbers of all lab diamonds under magnification in-house before dispatch. Each item is produced with precision by our team and inspected through multiple quality-control stages, ensuring every customer receives a piece that stands up to scrutiny—both in beauty and in provenance.