¥50,000 - ¥100,000

Zimbabwean Euclase 0.107ct loose stone Sale price¥79,800

Tanzania Magnesioaxinite 0.198ct loose stone by Nikkei Sale price¥69,800

Hana Shinju (South Sea Pearl) 16.380ct loose pearl Hana Shinju guarantee card Sale price¥69,800

Sri Lankan Water Quartz (Waterin Quartz) 26.243ct Loose Stone, Japan-Germany Exchange Sale price¥69,800

[Takeshi Yamamoto] Brazilian rose quartz 41.633ct loose stone Sale price¥59,800

K18PG ブラジル産カラーシフトアメジスト・ハックマナイト・ピンクサファイアリング

K18PG Brazilian color shift amethyst, hackmanite, pink sapphire ring Sale price¥79,800

Vietnam Cobalt Spinel (Color Change) 2.7mm/0.082ct Loose Stone, Japan-Germany Exchange Sale price¥59,800

Namibian Jeremejevite 0.193ct loose stone JTL catalogue Sale price¥98,000

モザンビーク産イリュージョントルマリン（イリデッセンストルマリン） 5.903ctルース

[12558570] Mozambique Illusion Tourmaline (Iridescent Tourmaline) 5.903ct Loose Stone Sale price¥59,800

モザンビーク産モザンビーク産イリュージョンパライバトルマリン 4.030ctルース

Mozambique Illusion Paraiba Tourmaline 4.030ct Loose (CuO:0.3%, MnO:0.9%) Sale price¥98,000

モザンビーク産モザンビーク産イリュージョンパライバトルマリン 2.708ctルース

Mozambique Illusion Paraiba Tourmaline 2.708ct loose stone (CuO:0.3%, MnO:2.5%) Sale price¥69,800

Parasite Peridot (Parasitetic Peridot) 0.172ct Loose Stone Sale price¥98,000

Colombian Trapiche Emerald 1.343ct Loose Sale price¥69,800

Malawi Bicolor Zircon 1.223ct Loose Stone Sale price¥55,800

Brazilian bicolor tourmaline 4.291ct loose stone Sale price¥55,800

Brazilian bicolor tourmaline 6.227ct loose stone Sale price¥69,800

Illusion Pink Tourmaline (Iridescent Tourmaline) 5.308ct Loose Stone Sale price¥69,800

Illusion Pink Tourmaline (Iridescent Tourmaline) 4.172ct Loose Sale price¥59,800

【さくらシェイプ】ブラジル産アメトリン 20mm/21.554ct《コラボ》ルース　ワッペン

[Sakura Shape] Brazilian Ametrine 20mm/21.554ct {Collaboration} Loose Patch Sale price¥98,000

【甲州貴石切子plusthree】ブラジル産アメトリン 6.557ctルースワッペン

[Koshu Precious Stones Plusthree] Brazilian Ametrine 6.557ct Loose Stone Patch Sale price¥55,800

【甲州貴石切子plusthree】ブラジル産アメトリン 6.457ctルースワッペン

[Koshu Precious Stones Plusthree] Brazilian Ametrine 6.457ct Loose Stone Patch Sale price¥55,800

【甲州貴石切子《桜切子》】ブラジル産スカイブルートパーズ 8.169ctルースワッペン

[Koshu Precious Stone Cutting "Sakura Cutting"] Brazilian Sky Blue Topaz 8.169ct Loose Patch Sale price¥55,800

非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:2.0%、MnO:2.2%）

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥59,800

モザンビーク産エルバイトトルマリン 1.580ctルース（CuO:0.1%,Mn0:1.9％）

Elbaite tourmaline from Mozambique 1.580ct loose stone (CuO: 0.1%, Mn0: 1.9%) Sale price¥59,800

Canadian Shortite 0.423ct Loose Stone, Japan-Germany Mirror Sale price¥69,800

ブラウンダイヤモンド 0.554ctルース (カボションカット,SIクラス相当)

Brown diamond 0.554ct loose (cabochon cut, SI class equivalent) Sale price¥69,800

Colombian Trapiche Emerald 0.811ct Loose Sale price¥59,800

Pink Diamond 0.075ct Loose (Fancy Purplish PINK, SI2) Sale price¥98,000

Myanmar color change zircon 0.626ct loose stone Sale price¥55,800

[Koshu Precious Stone Cutting] Brazilian Dumortierite in Quartz 3.169ct Loose Patch Sale price¥55,800

Tanzania Bicolor Zoisite 2.603ct Loose Stone Sale price¥88,800

Tanzanite from Tanzania 7.0mm/1.427ct loose stone Sale price¥55,800

Tanzania Bicolor Zoisite 2.665ct Loose Stone Sale price¥98,000

Russian Demantoid Garnet (Horsetail Recognized) 4.2mm/0.304ct Loose Stone Sale price¥98,000

Colombian Euclase 2.276ct loose stone Sale price¥69,800

Colombian Euclase 1.157ct loose stone Sale price¥69,800

Brazilian Paraiba Tourmaline 0.188ct Loose Stone (CuO: 1.1%, MnO: 4.0%) GIT Sale price¥55,800

非加熱ブラジル産パライバトルマリン 0.075ctルース（CuO:1.7%、MnO:1.9%）

Unheated Brazilian Paraiba Tourmaline 0.075ct loose stone (CuO: 1.7%, MnO: 1.9%) Sale price¥59,800

Zimbabwe Bicolor Euclase 2.6mm/0.087ct Loose Stone Sale price¥55,800

K18YGアフガニスタン産クンツァイト 0.74ct・タンザナイト・サファイアリング

K18YG Afghan Kunzite 0.74ct, Tanzanite, Sapphire Ring Sale price¥79,800

K18YG Myanmar Ruby, Padparadscha Color Sapphire, Yellow Diamond Pendant (Necklace) Sale price¥98,000

Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting) Sale price¥79,800

Myanmar spinel and Brazilian amethyst 7 stone set ring (Alterno setting) Sale price¥79,800

Sri Lankan spinel and Madagascar grandidierite 7 stone set ring (Alterno setting) Sale price¥79,800

[On sale from 10pm on 12/29] Sri Lankan blue sapphire and 10 Vietnamese silky pink sapphires in a half eternity ring set (approx. 2.6mm) Sale price¥98,000

Tanzanian kornerupine and Australian chrysoprase 7-stone set ring (Alterno setting) Sale price¥79,800

Camellia 13-stone set (Imperial topaz, Oregon sunstone, Andalusite, Padparadscha color sapphire, etc.) Half eternity ring set (2.0mm) Sale price¥89,800

Green Garden 13 Stone Set (Emerald, Demantoid Garnet, Grandidierite, etc.) Half Eternity Ring Set (2.0mm) Sale price¥89,800

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.