At Legacy Diamonds and Gemstones, we specialise in large carat diamonds — exceptional GIA certified stones from 3 carats to over 20 carats. Every stone is selected by our master gemologists for extraordinary optical performance, perfect provenance, and investment-grade quality.
Legacy Diamonds has spent seven decades building the world's most discerning eye for large carat diamonds. Where others offer quantity, we offer rarity — stones that represent not just beauty, but enduring value and generational significance.
At LEGACY, sourcing is done the old way: every stone individually — never in parcels, never on faith. The great stones do not circulate on open markets; they pass privately, between cutting desks and trading houses that have known one another for generations. Our gemologists sit at those desks, from Antwerp to New York to Geneva — and they decline far more than they accept.
Every stone we offer is independently graded by the world's foremost gemological laboratories — GIA, IGI, HRD — and its papers are presented across the desk, on request, before any decision is made. No stone leaves our hands unproven.
Whether you seek a singular white diamond of extraordinary size, a rare fancy colour stone, a loose gem for bespoke setting, or a commission of uncompromising ambition — Legacy is your partner.
Our flagship category. Legacy specialises in exceptional white diamonds from 3 carats to over 20 carats — stones of outstanding cut, clarity D to F, selected by our master gemologists for extraordinary optical performance.
Among the rarest objects on earth, fancy colour diamonds represent the pinnacle of collector investment. Legacy offers Fancy Vivid Yellow, Intense Yellow, and Fancy Pink diamonds — each carrying the highest GIA colour grade classifications.
For collectors who wish to commission their own setting or acquire diamonds as investment assets, we offer an exceptional selection of loose GIA certified stones — presented with full GIA grading reports and provenance documentation.
For clients whose vision demands something beyond the exceptional, Legacy offers a private bespoke commission service — working with our master gemologists and craftspeople to source the precise stone and create settings of extraordinary artistry.
The Gemological Institute of America is the world's foremost authority on diamond grading. GIA certification is not merely a paper — it is a guarantee of independence, accuracy, and unimpeachable scientific rigour.
At LEGACY, every diamond we offer carries current papers from the foremost laboratories. We accept no unproven stone — no exceptions.
The world's most remarkable GIA certified diamonds are not found in showrooms. They are acquired through introductions, private viewings, and the deep trust of long-standing relationships.