![[Published in 22602715] [Colorful] K18WG Alexandrite 0.64ct Diamond 0.04ct Pendant Top (Necklace Top) with Identification Report](http://store.karatz.jp/cdn/shop/files/collage_d65e1552-d979-4aeb-b60e-a5ba3ca1b2ad.png?v=1787965124&width=2000)
Royal blue sapphire 1.220ct loose stone
Sale price¥258,000
[Published 22602679] [Calafuri] Pt900 Thai Ruby 1ct Ring
Sale price¥298,000
[22602666 listed] [Colorful] K18WG Paraiba Tourmaline 0.09ct Ring
Sale price¥198,000
[Lottery Sale 0707_06] Kunzite from Afghanistan, 69.722ct Loose Stone
Sale price¥258,000
[Lottery Sale 0731_09] Burmese Ruby 1.020ct Loose Stone GIA
Sale price¥188,000
![【#202607 Akihabara Pop-up Store - Currently Removed for Display】[Colorfuri] Pt900 Black Opal 0.83ct / Diamond 0.62ct Ring with Certificate](http://store.karatz.jp/cdn/shop/files/P4085602_239fb724-e8c8-4f49-8fab-65e692522cdb.jpg?v=1785992300&width=4000)
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥198,000
[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring
Sale price¥258,000
![[Sales end Monday, August 31] Adult Sebonstar Vol. 4 "Swan Tiara Pendant" Precious Model Pt950](http://store.karatz.jp/cdn/shop/files/HOCUdkeaMAA2GQ1.jpg?v=1787452001&width=1080)
【Karahuri】Pt900 Imperial Topaz 3.88ct / Diamond 0.26ct Ring with Certificate
Sale price¥258,000
[Karafuru] Pt900 Ruby 0.69ct, Diamond 0.16ct Ring with Appraisal Report
Sale price¥188,000
[Calafuri] Pt900 Rough Diamond 2.733ct, Diamond 0.68ct Ring with Certificate
Sale price¥198,000
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
[12552306] Iolite 14.158ct loose stone
Sale price¥258,000
0.210ct Colombian Non-Oil Emerald Loose Stone GIA
Sale price¥228,000
Unheated Blue Sapphire 2.430ct Loose GIA
Sale price¥258,000
0.048ct Loose Purple Diamond (FANCY VIVID PINK PURPLE, SI-1) CGL
Sale price¥198,000
[Colorful] Pt900 1.33ct Thai Sapphire and 0.12ct Diamond Ring GIA
Sale price¥198,000
[Colorful] Pt900 Madagascar Sapphire 0.99ct / Diamond 0.58ct Ring GIA
Sale price¥228,000
Benitoite 0.352ct loose
Sale price¥298,000
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Brazilian Tricolor Tourmaline 32.207ct Loose (Parti-color Tourmaline)
Sale price¥398,000
Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)
Sale price¥258,000
Kunzite from Afghanistan (Lilac Pink) 49.724 ct Loose Gemstone
Sale price¥298,000
【Calafuri】Pt900 Ice Blue Diamond (Treated) 1.00ct Ring
Sale price¥298,000
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.286ct loose
Sale price¥258,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.