Tensor amulet with Prehnite – 925 sterling silver, platinum-plated
Every piece is unique
Every piece is unique
We set the stones in ROYAL TERRA by hand, one at a time. Every stone has its own shade and pattern, so the fragments never fall into place the same way twice. The photos show the design and color palette; your piece will look a little different. That’s what handmade means.
Usually ships within 1–3 business days, extended by extra production time (if provided).During periods of high order volume, processing may take time. up to 7 days + production time.
Product description
💚 Tensor amulet with prehnite – 925 sterling silver, platinum-plated
A Royal Cubit in 925 sterling silver, platinum-plated. The frame holds a composition of hand-cut minerals with prehnite, bound with epoxy resin and visible from both sides.
Platinum keeps a cool, silver tone and does not tarnish the way silver alone does. It is a coating, though, so with everyday wear it can gradually rub through on the edges. Underneath, solid 925 sterling silver remains.
💎 Craftsmanship
- 925 sterling silver, platinum-plated: Royal Cubit frame and bail
- Silver weight: 4 g
- Color: silver
- Outer diameter: 26 mm
- Stones: double-sided composition with prehnite, hand-cut
- Form: Royal Cubit, 144 MHz
- Bail: octagon
We cut the stones one by one, so no two amulets ever come out identical.
🌍 Prehnite
- Country of origin: South Africa
- Mineral group: silicate
- Hardness: 6–6.5 on the Mohs scale
Prehnite was the first mineral named after a specific person: Colonel Hendrik von Prehn, who brought it back from the Cape of Good Hope at the end of the 18th century. In nature it grows in forms resembling a hanging bunch of grapes, hence the English name grape stone.
🔮 What this stone is credited with
In the tradition of working with stones, prehnite is considered gentle. It calms rather than stimulates.
- calms the mind and the heart after prolonged stress
- strengthens intuition and inner guidance
- helps let go of control
- dissolves fear, anger and grief
- protects empathetic people
- supports dream work
🧬 Which souls it works on most strongly
- Mediator (2) – Source of Power – gives peace of heart, helps act from empathy, not from fear.
- Sage (7) – Heart and Emotions – softens the intellect, opens you to gentleness in word and feeling.
- Visionary (11) – Heart and Emotions – joins imagination with peace of heart.
✨ Find out which Soul you are and discover your life number: Map of Soul.
✨ The Royal Cubit and the ROYAL TERRA collection
The Royal Cubit is tensor geometry tuned to 144 MHz. The ring closes into a form which, in the tensor tradition, is said to create its own field and to hold the owner's intention. The bail does not touch the ring, so as not to close it.
The emblem of the ROYAL TERRA collection is the octagon, the figure eight, a figure of balance and flow. The platinum-plated version keeps a cool, silver color and does not need cleaning as often as uncoated silver.
Energetic effect
Energetic effect
VEL LEES tensor products are inspired by traditional knowledge of energy, symbolism, and spiritual harmony. They are not medical devices and do not replace professional healthcare.
Note: Due to their energetic nature — understood in the context of esoteric beliefs — we do not recommend their use by people with a pacemaker or any other active electronic implant.
Our products are made in Poland by a family-run jewelry company with traditions dating back to 1987, using only metals of Polish origin and combining local craftsmanship with attention to every detail.

How to put a pendant on a cord
Pass the loop of the cord through the pendant’s bail.
Pull the whole pendant through that loop.
Pull the cord so that the loop tightens around the bail.
Done – the pendant sits securely on the cord.