Skip to product information
1 of 10

GemTreeJapan

【Special】Cobalt Spinel 1.509ct / Tanzania

【Special】Cobalt Spinel 1.509ct / Tanzania

Regular price ¥999,000
Regular price Sale price ¥999,000
Sale Sold out
Taxes included. Shipping calculated at checkout.
Quantity

Silky Cobalt Spinel 1.509ct

5.65×6.58×4.33mm

Origin: Tanzania

Cut: Cushion

Cutter: Pia-chan

Comes with a sorting (simple identification report)

*Iron and cobalt content confirmed.

¥999,000-


A mystical gemstone with a deep navy base, overlaid with blues, violets, and a hint of silver-gray, creating a mesmerizing sparkle.

A uniform veil of silk inclusions gives it a presence truly befitting the name “Silky Cobalt.”


The shape is a perfect, well-proportioned cushion. Its plump profile and meticulous step cut draw out a clear sparkle from within.

As the angle changes, the deep blue of a tranquil abyss intertwines with the fiery cold light, showcasing a cool yet brilliant expression.


No noticeable inclusions are visible to the naked eye, indicating a super-fine crystal quality.

 

In natural light, the deep silky grayish-navy base color exudes a calm atmosphere, but when illuminated with LED light, the blue stands out, bringing the color's presence to the forefront.

 

Furthermore, it has the characteristic of subtly shifting to green under UV light, making it a unique gem that offers a touch of individuality.


This is a truly valuable one-of-a-kind piece, a "silky" quality among cobalt spinels, which are already rare in the market, and over 1.5ct.

Please enjoy this gemstone, where tranquility and brilliance coexist, in your own hands.


*This stone is currently stored at our Bangkok office. Please allow approximately 1-2 weeks for delivery after placing your order. We appreciate your understanding.

View full details