Tessera collection
Product details
A tessera is a single small square of stone, glass or ceramic in a mosaic. The name comes from the Greek word for four. A Roman or Byzantine mosaic can hold hundreds of thousands of them, and the image forms through the way each piece sits beside the next. Byzantine craftsmen set their gold-glass tesserae at slight angles to the wall, so every piece caught the light from its own direction.
This ring is composed the same way. Four square-cut emeralds are set on their points, one at each quarter of the design, each turned toward the light like a tile angled in a wall. Small lavender sapphires fill the spaces between them, as smaller tesserae fill the joints of a larger pattern. At the center, an opal holds the arrangement together.
The Composition
- central gemstone: natural soild opal, 8x6 mm cabochon cut, origin: Australia
- accent: natural emeralds, princess cut, 0.5 ct
- accent: lab alexandrites, colour changing ~0.22 ct
Create custom ring
Any design in the shop can be rebuilt around a different stone, metal or size. Tell us what you have in mind and we will sketch it for you.
Our shipping & processing times
Shipping to the USA: free, zero import tax. Orders ship from our US branch, so there are no import taxes or tariffs to pay.
- Made to order: 4–5 weeks
- Ready to ship: 10–12 days
Every package is fully insured and signed on receipt.
Also available in
A piece of jewelry worthy of the moment it’s opened
Every order arrives in a thoughtfully curated package – designed to delight from the very first moment, no extra wrapping needed.
- Box
- Rigid, lined, magnetic close
- Inside
- Ring, certificate, care card
- Wrapping
- None needed
- Delivery
- Insured, signed on receipt

Stone of this moon: Tourmaline
- (01) Origin
- Afghanistan
- (02) Treatment
- Natural, unheated
- (03) Hardness
- Mohs 7.25
- (04) Certificate
- Independent report, in your name
Your trail

