Madagascar Sphene 22.971ct / Un-Heat Star Ruby 7.402ct

[July Birthstone Campaign ]

Sphene & Ruby Special Project

We are now at the halfway point of 2025.

To kick off the second half of the season, we will be holding a special campaign inspired by the July birthstones, sphene and ruby.

This time, we are introducing a treasured 22.971ct museum-quality sphene from Madagascar at a special price for the July birthstone.

Regular price ¥3,690,000

↓

July Birthstone Special Price ¥2,700,000

*Please note that coupons and online tickets cannot be used for this special price.

In addition, as a purchase bonus

We will also be giving away a rare 7.402ct unheated star ruby , which is also the July birthstone !

This star ruby is a one-of-a-kind piece that was created by the founder as a hobby, going beyond business.

This is an extremely valuable masterpiece, created by the founder, who retired after a 34-year career, using his own aesthetic sense.

Please take your time to enjoy the brilliance of this top-quality product in your hands.

If you would like to purchase, please feel free to contact us via our official LINE or email.

Sphene 22.971ct

16.77 x 18.20 x 10.45mm

Cushion/Table Cube Cut

Piacchan's work

Sorting (simple identification) included

EGL120183-4

This piece is an extra-large Madagascar sphene weighing over 22 carats, and is a masterpiece that boasts such overwhelming power and beauty that it would not be out of place in a museum collection.

This large stone has stunning clarity, with only about three streaks of particles that are invisible in natural light, and it emits tremendous fire even without shining a special light on it.

This is the first GTJ original cut table cube cut, created by GTJ main cutter Piacchan, in which a box shape appears around the table.

It's surprising that his first piece would be such a masterpiece, but the founder of GTJ, who retired last year, entrusted it to Piacchan, believing that only by taking on the challenge of such an incredible gemstone could he achieve such a wonderful cut, and the result was a magnificent piece.

Please take your time to enjoy the incredible sparkle and museum atmosphere in your hands.

Here's the scene we showed you at the live stream:

For information about the 7.402ct unheated star ruby, please see → this page← .