Cluster Ring with Tanzanite and white Zircon
Where sky blue meets starlight. The Cluster Ring is one of our most technically advanced setting constructions: a 0.45 carat oval tanzanite defines the central axis, while round white zircons (2.5 mm) accompany it in a line of light. The tanzanite shimmers in its unmistakable blue, while the Cambodian zircons add a brilliant, prismatic sparkle. Together they create a contrast that feels elegant and vibrant at once. The Tanzanites were sourced through an Indian intermediary. Crafted in 925 sterling silver with germanium for enhanced tarnish resistance.
- Swiss Made - AG925
- Natural Tanzanite, untreated - Oval Brilliant cut
- Registered Swiss Responsibility Mark
- In stock: next working day
- Personalized: 14-21 days
- Custom size: 14-21 days
- Bespoke: 14-30 days
- Switzerland - free shipping: 1-2 working days
- Europe: 4-7 working days
- United Kingdom: 5-9 working days
- International: 7-10 working days
Sky blue, held in a line of light
One oval tanzanite sets the axis. The zircons answer it, prismatic and quick. A classical cluster, rethought.
Specifications
- Gemstone
- Zoisit
- Variety
- Tanzanite
- Color
- Cornflower Blue
- Carat
- 0.455
- Cut
- Oval Brilliant cut
- Treatment
- Untreated
- Gemstone
- Zirkon
- Variety
- Weiss
- Color
- White
- Carat
- 0.1
- Cut
- BrilliantRound · Brilliant cut
- Treatment
- Heated
- Gemstone
- Zoisit
- Variety
- Tanzanite
- Color
- Indigo Blue
- Carat
- 0.091
- Cut
- Pear Brilliant cut
- Treatment
- Untreated
The atelier's handA single fine line, and one point of light that never asks for attention - only holds it.
Conceived, cast and finished by a single atelier - so that the hand that drew the piece is the same that sets its stone.
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.
Properties
- 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
Why this stone
Found exclusively in Tanzania, it is among the rarest gemstones in the world. Its color-changing properties make it an icon of modern luxury.
Tradition
Tanzanite symbolizes transformation, inner wisdom, and spiritual awakening. It is said to inspire creativity and expand consciousness.
Care
Tanzanite is considerably softer than corundum and has cleavage: no ultrasonic cleaning, no sudden temperature changes, protect from knocks.
white Zircon
White zircon is colorless, brilliant, and sparkles with a diamond-like fire. It radiates pure elegance and timeless clarity.
Properties
- Mineral group
- Zircon (nesosilicate)
- Chemical formula
- ZrSiO₄
- Colorant
- none
- Crystal system
- tetragonal
- Hardness (Mohs)
- 6.5 - 7.5
- Density
- approx. 4.6 - 4.7 g/cm³
- Refractive index
- 1.925 - 1.984
- Optical character
- anisotropic, uniaxial positive
- Birefringence
- 0.059 (very high, facet edges appear doubled)
- Dispersion
- 0.039
- Pleochroism
- not observable (colorless)
- Fluorescence
- weak yellow to orange (variable)
- Luster
- vitreous to adamantine
Why this stone
A gemstone of diamond-like brilliance and timeless elegance - ideal for luxurious jewelry pieces with a distinctive play of light.
Tradition
White zircon symbolizes purity, truth, and protection. It is said to bring clarity to life and strengthen awareness.
Care
Zircon is brittle at the facet edges and may darken under strong UV exposure - protect from knocks.