
Emeraude Colonne
- Stone
- Natural Colombian emerald · emerald cut
- Metal
- 18k yellow gold · baguette diamond shoulders
- Lead
- 4–8 weeks, made to order

A curated catalog of house designs by SOSNA Diamonds. Each piece is executed in one Prague atelier — 18-karat gold or platinum 950 — around a single certified natural colored gemstone. Lead time 4–8 weeks.
The catalog is a curated set of proven house designs. Each piece is made to order in our Prague atelier — faithful to the design shown, but set with your chosen stone and in your specifications. Lead time 4–8 weeks.
To create a piece from scratch, with original drawing and personal consultation with the designer, see bespoke (1:1 commission). Bespoke runs 10–16 weeks and includes CAD, prototyping and signature by Lucia Sosna.
Solitaires, three-stones and cocktail rings, each drawn around a single certified colored stone.



Single-stone pendants and halo pendants on hand-drawn 18k or platinum chains.
Drops, clusters and matched pairs — a discipline of symmetry between two stones from the same origin.
Line bracelets and cocktail bracelets composed of matched, calibrated colored stones.

Coordinated suites — necklace, earrings, ring — designed together, sourced together, delivered together.
You choose a design. We confirm stone availability and budget.
We present 2–4 certified candidates (GIA / SSEF / Gübelin). You choose.
Handcrafted in our Prague atelier. Photographic updates during production.
Insured, discreet worldwide delivery. Hand-delivery on request.
Natural stones only · No investment or resale promises