The Merelani Hexagon — 9.75 ct D-Block Tanzanite Pendant

A stone of singular rarity.

Formed beneath the foothills of Kilimanjaro 585 million years ago, tanzanite is found in a single square mile of earth. Fewer than 1 in 10,000 reach the quality of a D-block stone. This is one of them.

The Merelani Hexagon showcases an exceptional 9.75 carat D-Block Tanzanite — the finest colour grade reserved for stones exhibiting the deepest, most saturated violet-blue with a trichroic shift that reveals flashes of indigo, sapphire and gold under changing light.

The Setting

Set in 18K White Gold with a diamond halo that amplifies the stone's natural fire without competing with it. The hexagonal cut is a rare format chosen to honour the gem's crystallographic structure — elongating the colour saturation while creating six perfectly symmetrical facet planes.

Specifications

• Stone: Natural Tanzanite, D-Block
• Carat Weight: 9.75 ct
• Cut: Hexagon, custom
• Setting: 18K White Gold with Diamond Halo
• Origin: Merelani Hills, Arusha Region, Tanzania

Certificate & Provenance

Each GPS GEMS piece is accompanied by a full gemological certificate and a letter of provenance tracing the stone's journey from mine to mount. This is not simply jewellery. It is a record of a rare moment in geological time — made wearable.

One of one. When it is gone, this stone is gone.