Skip to content
HOME
About GTJ
ON SALE
ON SALE
All
Iolite
Aquamarine
amethyst
Orthoclase
Kyanite
garnet
garnet
Almandine Garnet
Color Change Garnet
Malaya Garnet
Mali Garnet
Rhodolite Garnet
Kunzite
Goshenite
sapphire
sapphire
Padparadscha
Cornflower Blue Sapphire
Royal Blue Sapphire
Party Color Sapphire
Zircon
Spinel
Spinel
Cobalt Spinel
Sphalerite
Smoky Quartz
Zoisite/Tanzanite
Diaspore
Topaz
Tourmaline
Hyalite
Prehnite
Peridot
Labradorite
Ruby
Cinderella Project
Web Ticket
BLOG
BLOG
2026.3.30 Diary of Sri Lanka by lulu
2026.3.26 Sri Lanka Travel Report / March 2026
2026.1.17 Kanchanaburi Diary
December 20, 2025 Diary of Chanthaburi
September 24, 2025 Green Zircon
2025.9.20 Burmese Sapphire
2025.5.16 Hyalite Opal
2025.4.2 Cobalt Spinel
2025.2.27 Chrysoberyl
2025.2.27 Amethyst
2025.1.28 Malaya Garnet
UV Tenebrous Zircon
CONTACT
CONTACT
Official LINE
Email inquiry form
LINKS
Legal Notice
Legal Notice
Privacy Policy
Refund Policy
Shipping Policy
Terms of Service
特定商取引に基づく表記
Log in
Country/region
Japan | JPY ¥
Hong Kong SAR
USD $
Japan
JPY ¥
Singapore
USD $
United States
USD $
Language
English
日本語
English
X (Twitter)
Instagram
YouTube
Search
Log in
Cart
Item added to your cart
View cart
Check out
Continue shopping
Collection:
Silky Cobalt Spinel
【Special】Cobalt Spinel 1.509ct / Tanzania
Sold out
【Special】Cobalt Spinel 1.509ct / Tanzania
Regular price
¥999,000
Regular price
Sale price
¥999,000
Sold out
Choosing a selection results in a full page refresh.
Opens in a new window.
