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Our Core Values
1. Certified Materials
We work only with certified precious metals and natural gemstones. Our gold is sourced as 999 fine gold bars and alloyed in-house into solid 14K (585) or 18K (750) gold. Every item is officially hallmarked in accordance with EU standards by an Assay Office.
2. In-House Craftsmanship
All One Mo Diamond jewellery is made in our own workshop in Lithuania. Our jewellers are personally trained and work under strict quality supervision — we do not outsource, and we never mass-produce.
3. Transparent Pricing & Product Info
Each product listing includes full specifications: metal purity, diamond carat weight, grading details, and certificate information where applicable. There are no hidden materials or vague descriptions — what you see is exactly what you get.
4. True Gold, No Hollow Jewellery
We do not use hollow or ultra-light designs. Every piece is made from solid gold or platinum, designed to have real weight, real strength, and long-term wearability. Even hidden surfaces are polished and finished to perfection.
5. International Diamond Certificates
All diamonds above 0.30ct are sold with international certificates from GIA, IGI, or HRD. Small accent stones are hand-selected for quality and brilliance, with a strong focus on cut and clarity — never synthetic, never lab-grown unless clearly stated.
6. Honest & Responsive Service
We speak with our customers directly — no bots, no call centers. Questions about stones, sizing, or custom orders are answered personally and professionally. We stand behind every order with a 30-day return policy and a free resizing offer when applicable.
7. Sustainable Practices & Ethical Sourcing
We choose partners and suppliers who follow ethical mining, fair labour, and sustainability standards. Our materials are traceable, and our production is small-scale, avoiding unnecessary waste or overproduction.
8. Designed to Last, Not to Trend
Our jewellery is timeless — designed with intention, balance, and durability. We don’t follow fast fashion. We create pieces that hold value, meaning, and emotional connection — now and for future generations.