Osia International
The Bespoke Archive
A record of commissioned and exceptional pieces we've made — most no longer available, kept here as a record of the work rather than a listing. If something here speaks to you, we build to brief.
Every piece here is a real commission Osia International has produced, using diamonds and gemstones from our own inventory: one-of-one coloured stone work and bespoke bridal pieces, most already delivered to their client. This is a record of the work, not a shop. Pricing is on application, and every commission starts with a brief.
THE WAVE CORONET
Tiara
A tiara built on scalloped, interlocking wave motifs that echo across two registers: a delicate upper crest and a fuller, cascading base, meeting at a six-point diamond star finial. Pavé-set throughout in 18K white gold, with a secondary snowflake accent nested just below the star. Comb-mounted for a secure, traditional fit. Available made-to-order in your choice of metal, stone quality, and finial motif through Osia's bespoke commissioning service, ideal for bridal, pageant, or private-label ceremonial collections.
ONE OF ONE: LARIAT NECKLACE COMMISSION
The Lariat
Set with 320 diamonds for a total of 4.22 carats, in 18K white gold. An open, woven link chain narrows into a V at the front and drops into a graduated cascade of clusters, built to move with the wearer rather than sit flat against the chest.
ONE OF ONE: COLOURED STONE COMMISSION
Forest Cushion
A 12.2 carat green tourmaline from Afghanistan, its colour running between deep forest green and blue. Set with a pair of half-carat Cadillac-cut diamonds, cut specifically to the stone's own dimensions, and mounted in two-tone yellow and white gold to draw out the tourmaline's warmth. One of a kind, sold to a jewellery manufacturing house.
ONE OF ONE: COLOURED STONE COMMISSION
Ceylon Halo
Unheated Ceylon sapphire, sourced directly rather than through the usual parcel. The kind of stone that comes up for consideration once or twice a year, not something we'd normally hold in finished stock.
ONE OF ONE — DIAMOND-SET TIMEPIECE COMMISSION
The Pavé Chronograph
A beautiful Audemars Piguet chronograph, brought to us to be reborn: the case, bezel and bracelet fully pavé-set, stone by stone, with natural VVS diamonds by our own workshop. The commission ran a full month from stone selection to final polish, every facet chosen to keep the dial legible and the proportions true to the original design — the result wears like fine jewellery that happens to also tell the time.
ONE OF ONE — COLOURED STONE COMMISSION
The Verdant Cuff
143 diamonds, 3.13 carats total, set in a continuous double ribbon across an open bangle frame, met at two points by clusters of marquise-cut emeralds totalling 2.3 carats — arranged like leaves breaking from a vine. Finished in 18K white gold, the whole piece is built to move with the wrist rather than sit stiff against it.
ONE OF ONE — COLOURED STONE COMMISSION
The Tanzanite Signet
An 11.5 carat cushion-cut tanzanite, set in platinum and framed by 90 diamonds totalling 4.01 carats across a sculpted, architectural shoulder. The violet-blue of the centre stone was the whole brief — everything around it was designed to hold that colour at the centre of attention without ever competing with it.
ONE OF ONE — COLOURED STONE COMMISSION
The Paraiba Teardrop
A 1.39 carat Paraiba tourmaline, cut as a pear and ringed in a double halo of 60 diamonds totalling 1.46 carats, set in 18K white gold. Paraiba of this colour is rare enough on its own — the halo exists only to let more light reach the stone, never to outshine it.
ONE OF ONE — COLOURED STONE COMMISSION
The Emerald Cocktail Ring
A 13.58 carat emerald-cut emerald, bezel-set in 18K yellow gold and bordered by 36 baguette diamonds totalling 2.23 carats, each one cut to fit its exact position around the stone rather than pulled from a standard run. The generous scale of the centre stone called for precise, secure bezel work.
ONE OF ONE — COLOURED STONE COMMISSION
The Morganite Pear Drops
Two pear-cut morganites, 6.97 carats total, drop from a rose gold hoop and a single bezel-set diamond, each stone ringed in a pavé halo of 93 diamonds totalling 0.61 carats. Long enough to move with the wearer and catch light from every angle, without ever feeling heavy in the ear.
Frequently Asked
About the Bespoke Archive.
Can I buy a piece from the Bespoke Archive?
Most pieces shown here are already delivered to the client who commissioned them and aren't for sale. The Archive is a record of Osia's craftsmanship, not a shop - if a piece speaks to you, we build a comparable design to your own brief.
Does a bespoke commission use my own stone?
Most commissions do, and every diamond and gemstone in our inventory is sourced and selected by Osia. What you bring is the design: a reference, a CAD file, or a sketch, and our own team designs and manufactures the piece to your requirements, the same process behind every piece in this Archive. If you'd rather set a stone of your own, we can work with that too. We sign NDAs as standard and have manufactured for brands worldwide.
Why does every piece say "Price on Application"?
Every commission here was priced individually around its stone, metal, and complexity, so there's no single list price to quote. Enquire about a similar commission and we'll scope it to your brief and budget.