With over 25 years of expertise, Goldiama combines precision craftsmanship, advanced technology, and deep gemological knowledge to transform exceptional rough diamonds into responsibly crafted, high-value polished stones. From planning and cutting to polishing and final grading, every diamond reflects our commitment to precision, quality, and timeless excellence.
Full control from design to finish.
Master jewellers and technicians.
Rigorous QA at every stage.
GIA-graded, internationally recognised.

Goldiama Diamond Manufacturing carries forward a legacy shaped by generations of craftsmanship, where time-honoured technique meets rigorous modern precision.
We remain steadfast in our commitment to the highest standards of quality, pairing master artisanship with proven, transparent processes at every stage of production.
Our dedication to consistency and integrity ensures that every diamond leaving our facility reflects the standard of excellence our name represents.
Explore MoreEvery diamond has a story. Our master artisans and advanced technology work in harmony to unlock its true potential, ensuring maximum brilliance, fire and beauty in every facet.
Ethically sourced rough diamonds
3D mapping & precision planning
Masterful cutting for ideal brilliance
Finishing touches for timeless beauty
Strict inspection for exceptional standards
In-House · End to End · GIA Certified
Goldiama's diamond manufacturing factory transforms carefully selected rough into exceptional polished stones, entirely within our own atelier. Advanced planning technology, precision laser systems and master polishers work under a single roof, with nothing outsourced and nothing untraceable.
From the first 3D scan to independent GIA certification, every stage is controlled, documented and executed to the highest international standards of brilliance, symmetry and precision.
01Every diamond is meticulously evaluated by our expert gemologists, combining decades of craftsmanship with advanced analytical techniques to identify its true potential.
02Every rough stone is scanned, modelled and mapped in three dimensions, so each cut is decided by data before a single facet is touched.
03Master polishers apply centuries-refined technique on our own wheels, every facet finished by hand, judged by eye, and never outsourced.
Every Goldiama diamond is responsibly sourced from trusted suppliers who adhere to internationally recognized ethical standards. We are committed to ensuring our diamonds are conflict-free, transparently traded, and carefully verified, providing exceptional beauty with integrity, confidence, and complete peace of mind.
Goldiama is fully committed to the Kimberley Process Certification Scheme (KPCS), ensuring that every rough diamond is sourced through legitimate, ethical, and conflict-free supply chains. We work exclusively with trusted partners who comply with international regulations, promoting responsible sourcing, transparency, and integrity throughout every stage of the diamond journey.
Diamonds & Gold, In Person.
Step inside an experience reserved for the few, private appointments, expert guidance and the world's finest stones and gold, presented exclusively for you.
01Fully-appointed private rooms where every piece is presented exclusively for you, without distraction.
02Our certified gemologists guide every visit, each consultation unhurried, personal and completely confidential.
03Every diamond and gemstone comes with internationally recognised grading reports and full provenance.
04Access is by private appointment only, ensuring a bespoke, one-on-one experience every time.
An integrated precious metals partner, trusted by investors, family offices and institutions across continents.