Width: 6.1 - 7.0mm

Sri Lankan glass body (sapphire crystal) 10.140ct rough stone Sale price¥22,800

【202608GIA Appraisal Request】【On Sale June 5th, 10 PM】Russian Demantoid Garnet (with horsetail inclusion) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥458,000

[Available 9/11 at 10 PM] Almandine Garnet from Tanzania, 1.354ct Loose Gemstone Sale price¥15,800

[Available 9/11 at 10:00 PM] Mexican Fire Opal (faceted cut) 1.255ct loose stone Sale price¥49,800

タンザニア産サンストーン（イリュージョンサンストーン） 6.3mm/0.762ctルース

【9/11 10 PM Release】 Tanzanian Sunstone (Illusion Sunstone) 6.3mm/0.762ct Loose Gemstone Sale price¥9,800

[Available 10/14 at 22:00] Madagascar Sphene 6.8mm/1.363ct Loose Gemstone with Appraisal Report Sale price¥19,800

【Lottery Sale ②_202608_12】Brazilian Bi-Color Pink Euclase 3.210ct Loose Stone with Japan-Germany Gemological Report Sale price¥798,000

[Lottery Sale 0620_03] South African Rhodochrosite 2.694ct Loose Stone Sale price¥228,000

Spanish Sphalerite 2.726ct loose stone Sale price¥32,800

Brazilian Lepidocrocite in Quartz 1.126ct Loose Stone Sale price¥9,800

Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange Sale price¥98,000

[Available 9/6 at 10 PM] Moonstone from Uva, Sri Lanka, 1.155ct loose stone Sale price¥18,800

【9/14 10:00 PM Release】 Sri Lankan Uva Moonstone 1.172ct Loose Stone Sale price¥15,800

【Available 9/14 at 10 PM】 Sri Lankan Uva Moonstone 0.872ct Loose Stone Sale price¥14,800

[Available 9/14, 10 PM] Moonstone from Uva, Sri Lanka, 1.196ct Loose Gemstone Sale price¥16,800

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.574ctルース

[Available 9/7 at 10 PM] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.574ct Loose Stone Sale price¥14,800

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.507ctルース

【Available 9/10 at 10 PM】 Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.507ct Loose Stone Sale price¥12,800

Amazon Green Opal 0.814ct Loose (Faceted Cut) Sale price¥7,980

Brazilian copper rutilated quartz 1.334ct loose stone Sale price¥8,800

Brazilian Indigolite Tourmaline 1.514ct Loose Stone, Japan-Germany Exchange Sale price¥55,800

[Lottery Sale 0818_09] Brazilian Dioptase 1.608ct Loose with Certificate Sale price¥59,800

Brazilian copper rutilated quartz 1.262ct loose stone Sale price¥6,980

Brazilian copper rutilated quartz 1.647ct loose stone Sale price¥6,980

Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange Sale price¥39,800

[Available 9/3 at 10:00 PM] 1.336ct Loose Blood Red Coral from Kochi Prefecture Sale price¥9,800

[On sale 9/3 at 10:00 PM] Brazilian Rhodonite in Quartz 6.2mm/0.600ct Loose Stone Sale price¥9,800

[On sale 8/23 at 10 PM JST] Sri Lankan Yellow Sapphire 1.100ct Loose Stone, Japan/Germany certified Sale price¥49,800

[Sales begin 8/24 22:00] Kochi Prefecture Produced Deep Red Coral 0.984ct Loose Stone Sale price¥9,800

[On sale August 24th at 10 PM] Kochi Prefecture Red Coral 1.370ct Loose Stone Sale price¥11,800

[On sale August 24th at 10 PM] Kochi Prefecture Blood Coral 0.939ct Loose Stone Sale price¥9,800

[Published as 12563385] Tanzanian Zircon 3.964ct Loose Sale price¥39,800

[Sales start August 23rd at 10 PM] Brazilian Rio Grande do Norte Apatite Cat's Eye 1.782ct Loose Stone with Certificate Sale price¥25,800

[On Sale August 19, 10 PM] Brazilian Spessartine Garnet 0.968 ct Loose Stone with Certificate Sale price¥25,800

Colombian Pyrite, Mica in Emerald 1.192ct Loose Stone with Certificate Sale price¥79,800

[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose Sale price¥128,000

Spanish Sphalerite 6.5mm/1.321ct Loose Stone Sale price¥19,800

Brazil Color Change Fluorite 1.099ct Loose Stone Sale price¥9,800

Kochi Prefecture Aka Sango (Red Coral) 1.439ct Loose Stone Sale price¥9,800

Kochi Prefecture-produced red coral 0.978ct loose stone Sale price¥9,800

【Sales begin August 12, 10 PM JST】Kochi Prefecture-produced Oxblood Coral 0.908ct Loose Stone Sale price¥9,800

[Sale on 8/16 at 10 PM] Kochi Prefecture Blood Coral 1.400ct Loose Stone Sale price¥9,800

Kochi Prefecture-sourced deep red coral, 1.238ct loose stone Sale price¥9,800

Kochi Prefecture Blood Coral 1.286ct Loose Stone Sale price¥9,800

Kochi Prefecture-produced Red Coral 1.379 ct Loose Stone Sale price¥11,800

Oregon Sunstone from USA, 6.7mm/1.032ct, loose stone Sale price¥18,800

Kochi Prefecture Deep-Red Coral 1.446ct Loose Gemstone Sale price¥12,800

Kochi Prefecture Deep Red Coral 1.290ct Loose Gemstone Sale price¥12,800

Oregon Sunstone from the USA, 7.0mm/1.345ct Loose Sale price¥35,800

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.