Silver Ring Katana with Tanzanite & natural blue Zircon

Name: Silver Ring Katana with Tanzanite & natural blue Zircon
Brand: Lulu Amani
SKU: SH-045-01
Price: 346.00 USD
Availability: InStock

Rings

US$ 346.00

Clarity like a blade. The Katana ring is inspired by the reduced precision of Japanese swordsmithing - clean lines, decisive edges, no superfluous detail. At its center a tanzanite glows in deep violet-blue, flanked by a natural blue zircon whose vivid sparkle adds further depth to the ring. A piece for those who want to see strength and elegance united in one form. Crafted in 925 sterling silver with germanium for enhanced tarnish resistance.

SizeSize guide

Reference SH-045

Specifications

Center stone - Tanzanite

Gemstone: Zoisit
Variety: Tanzanite
Color: Blau
Carat: 0.455
Cut: Oval
Treatment: Untreated
Treatment: None - untreated
Setting: Bezel / Zarge

Accent stones · 2× - Starlite

Gemstone: Zirkon
Variety: Starlite
Carat: 0.37
Treatment: Heated
Treatment: None - untreated

Made in Olten

A single fine line, and one point of light that never asks for attention - only holds it.

The atelier's hand

Conceived, cast and finished by a single atelier - so that the hand that drew the piece is the same that sets its stone.

Lulu Amani · Olten

ring · Tensor · Trilogy

Silver-germanium resists tarnish far better than sterling silver. Wipe gently with a soft, dry cloth. Remove before swimming and avoid direct contact with perfume, lotion and chlorine.

Production

In stock: next working day
Personalized: 14-21 days
Custom size: 14-21 days
Bespoke: 14-30 days

Delivery after dispatch

Switzerland - free shipping: 1-2 working days
Europe: 4-7 working days
International: 7-10 working days

· Mineralogy ·

Tanzanite

Tanzanite fascinates with its unique color range from blue to violet and even purplish tones. Its vivid pleochroic effect makes it one of the most extraordinary gemstones in the world.

6.5 - 7

Mohs hardness

orthorhombic

Crystal system

1.691 - 1.700

Refractive index

Untreated

Natural stone

Mineral group: Zoisite
Chemical formula: Ca₂Al₃(SiO₄)₃(OH)
Colorant: vanadium
Crystal system: orthorhombic
Hardness (Mohs): 6.5 - 7
Density: approx. 3.35 g/cm³
Refractive index: 1.691 - 1.700
Optical character: anisotropic, biaxial positive
Birefringence: 0.008 - 0.013
Dispersion: 0.021
Pleochroism: strongly trichroic: blue / violet / burgundy
Fluorescence: inert
Luster: vitreous

Found exclusively in Tanzania, it is among the rarest gemstones in the world. Its color-changing properties make it an icon of modern luxury.

Tanzanite symbolizes transformation, inner wisdom, and spiritual awakening. It is said to inspire creativity and expand consciousness.

Tanzanite is considerably softer than corundum and has cleavage: no ultrasonic cleaning, no sudden temperature changes, protect from knocks.