Osia International
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.
ONE OF ONE: LARIAT NECKLACE COMMISSION
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.
COMMISSIONED 2024 — FLORAL SERIES
Made with over 80 round diamonds, each precisely 0.19ct in VVS clarity, for a total weight of 20 carats. At the client's request, two additional links were added at the end, so the bracelet can be worn longer or looser, giving them room to adjust the fit however they like. Hand-finished in three weeks.
ONE OF ONE: COLOURED STONE COMMISSION
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: BEZEL SERIES
Bezel-set diamond flower clusters throughout, a design we cast regularly in both bezel and claw settings, chosen here for its cleaner, more architectural look. Each bezel sits flush and even against the last, so the clusters read as one continuous line of light rather than a row of individual stones.
ONE OF ONE: COLOURED STONE COMMISSION
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 — COLOURED STONE COMMISSION
Paraiba of this saturation rarely reaches cutting stage intact — most of the rough shatters along its own inclusions. This one didn't, and the finished stone came in half a carat under the rough's original estimate as a result.
Frequently Asked
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.
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.
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.