Vertical: 6.1 - 7.0mm

Namibian Jeremejevite 0.501ct loose stone (bicolor) Sale price¥89,800

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥12,800

Vietnam Aquamarine 0.398ct Loose Sale price¥5,980

Cambodian Blue Zircon 0.744ct Loose Stone Sale price¥7,980

[On sale 6/12 10 PM JST] Synthetic Alexandrite 1.076ct Loose Stone Sale price¥25,800

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800

Brazilian pink tourmaline 0.968ct loose stone Sale price¥18,800

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800

[Sales start 10 PM on 6/6] Madagascar Labradorite 0.823ct Loose Gemstone Sale price¥7,980

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800

Sky blue topaz 1.051ct loose stone Sale price¥8,800

Lepidocrocite in quartz 0.532ct loose Sale price¥6,980

Pink tourmaline 0.819ct loose Sale price¥9,800

[On sale June 6th, 10 PM JST] Cambodian Blue Zircon (Ratanakiri Blue) 1.455ct Loose Stone with Gemological Report Sale price¥22,800

[Sales start June 5th, 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥398,000

[On sale June 5th at 10 PM] Russian Demantoid Garnet (Horsetail inclusion confirmed) 6.9mm/1.589ct Loose Stone with Appraisal Report Sale price¥458,000

[On sale May 30th at 10 PM] Mongolian Andesine 0.464ct Loose Stone Sale price¥9,800

[Sale on May 30th at 10 PM] Synthetic Rutile 6.2mm/1.594ct Loose Stone Sale price¥15,800

【Available May 30th at 10 PM】Sugilite from South Africa, 0.786 ct Loose Stone Sale price¥12,800

Pink spinel 0.713ct loose stone Sale price¥8,800

Goshenite 0.846ct loose stone Sale price¥7,980

アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.556ctルース

[On sale May 30th at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.556ct Loose Stone Sale price¥8,800

Almandine Garnet 0.814ct Loose Stone Sale price¥7,980

Mozambique pink spinel 0.670ct loose stone Sale price¥22,800

American Peridot 0.528ct Loose Stone Sale price¥8,800

Yellow sapphire 0.287ct loose stone Sale price¥8,800

Afghanite from Afghanistan 0.617ct loose stone Sale price¥69,800

Sphene 0.503ct loose stone Sale price¥5,980

Australian black opal 0.650ct loose Sale price¥15,800

Tanzanian Chrome Tourmaline 0.522ct Loose Stone Sale price¥3,980

Colombian Trapiche emerald 0.611ct rough stone Sale price¥59,800

Goshenite 6.1mm/0.905ct loose stone Sale price¥7,980

Pink tourmaline 6.1mm/1.031ct loose stone Sale price¥12,800

Pink tourmaline 0.466ct loose Sale price¥8,800

[On Sale June 7th, 10 PM] Andalusite from Spain, 0.582 ct loose stone Sale price¥7,980

[On sale June 7th at 10 PM] Andalusite from Spain, 0.536ct loose stone Sale price¥9,800

[On sale May 24th at 10 PM] Andalusite from Spain 0.598ct Loose Gemstone Sale price¥9,800

[Sale on 5/17 at 10 PM] Cinnabar from Xinhua, Hunan Province, China, 1.056 ct Loose Stone with Gemological Report Sale price¥18,800

[On sale May 17th at 10 PM] Indian Parrot Chrysoberyl 0.641ct Loose Stone Sale price¥14,800

[On sale 5/21 at 10 PM] Synthetic Alexandrite 0.808ct Loose Stone Sale price¥18,800

[On sale 5/22 at 10 PM] Australian Black Opal 0.325ct Loose Stone Sale price¥9,800

[On sale 9 May, 10 PM] Brazilian Green Spodumene, 1.460 ct loose gemstone Sale price¥12,800

【Available 5/9 at 10 PM JST】Brazilian Sky Blue Topaz 0.756ct Loose Gemstone Sale price¥8,800

[On Sale May 9th at 10 PM] Madagascar Apatite 6.5mm/1.285ct Loose Stone (Rose Cut) Sale price¥8,800

[On sale May 9th, 10 PM JST] Turkish Color Change Diaspore 1.085ct Loose Gemstone Sale price¥18,800

[On sale May 9 at 10 PM JST] Brazilian Sky Blue Topaz 0.802ct Loose Stone Sale price¥9,800

[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone Sale price¥98,000

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.