Sale

Pt950 ブルージルコン（ラタナキリブルー） 5.00ct ペンダントトップ（ネックレストップ）鑑別書

[Sale at 10 PM on August 25] [Colorful] Pt950 Blue Zircon (Ratanakiri Blue) 5.00ct Pendant Top (Necklace Top) with certificate Sale price¥148,000

[Published 22602679] [Calafuri] Pt900 Thai Ruby 1ct Ring Sale price¥298,000

[Featured in 22602706] [Calafuri] K18WG Turquoise Earrings Sale price¥24,800

K18YG アイドクレース/ベスビアナイト 0.908ct・ダイヤモンド0.19ctリング鑑別書

[Lottery Sale 0731_13] [Colorfury] K18YG Idocrase 0.908ct Ring with appraisal report Sale price¥128,000

[Published on 22602652] [Colorful] K18 Synthetic Opal Pendant Top Sale price¥16,800

Pt900 スターサファイア 0.744ct・ダイヤモンド0.167ctリング鑑別書

【22602701掲載】【Karafuri】Pt900 Star Sapphire 0.744ct Ring Sale price¥128,000

Pt900 マンダリンガーネット 1.15ct・ダイヤモンド0.11ctペンダントトップ（ネックレストップ）鑑別書

[22602704 Posted] [Colorful] Pt900 Mandarin Garnet 1.15ct Pendant Top Sale price¥110,000

Pt900 ロンドンブルーダイヤモンド 0.13ct・ダイヤモンド0.40ctリング鑑別書

[Published in 22602703] [Kalafull] Pt900 Ice Blue Diamond (Treated) 0.13ct Ring Sale price¥98,000

Pt900合成アレキサンドライト0.41ct・ダイヤモンド0.54ctリング鑑別書

[Lottery Sale 0812_08] Pt900 Synthetic Alexandrite and 0.54ct Diamond Ring with Certificate Sale price¥128,000

Pt900ブラジル産シーフォームトルマリン 4mm/0.32ct ・ダイヤモンド0.16ctペンダントトップ（ネックレストップ）鑑別書

[Lottery Sale 0812_04] Pt900 Brazilian Seafoam Tourmaline 4mm/0.32ct and Diamond 0.16ct Pendant Top (Necklace Top) with Identification Report Sale price¥79,800

Pt900 モザンビーク産ルビー 4mm/0.3ct ・ダイヤモンド0.16ctペンダントトップ（ネックレストップ）鑑別書

[Lottery Sale 0812_05] Pt900 Mozambique Ruby 4mm/0.3ct and Diamond 0.16ct Pendant Top (Necklace Top) with Identification Report Sale price¥59,800

[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》 Sale price¥3,980

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥3,980

[Posted 12549460] Star peridot from Myanmar 3.748ct loose Sale price¥19,800

[Updated 12546024] Ametrine 4.206ct loose Sale price¥39,800

Limited to 10 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases. Sale price¥3,980

1 Brazilian Euclase rough stone (discount available for multiple purchases) Sale price¥3,980

[On Sale August 23rd, 10 PM] Sri Lankan Blue Sapphire 0.286ct Loose Stone with Certificate Sale price¥14,800

[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 August 24 at 10 PM JST] 0.830ct Red Coral Loose Stone from Kochi Prefecture Sale price¥9,800

[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

【Sales start 8/24 10 PM JST】Brazilian Strawberry Quartz 5.9mm/0.830ct Loose Stone Sale price¥6,980

[On sale August 25, 10 PM JST] Madagascar Labradorite 8.7mm/2.651ct Rose-Cut Loose Gemstone Sale price¥9,800

[Sale starts August 25th at 10 PM JST] Madagascar Pezzottaite 2.7mm/0.062ct Loose Gemstone Sale price¥11,000

[On sale August 25th, 10 PM JST] Brazilian Rose Quartz 1.816ct Loose Gemstone Sale price¥12,800

[On sale August 25 at 10 PM] Brazilian Limonite in Topaz 5.103 ct Loose Stone Sale price¥12,800

Brazilian Rose Quartz Loose Stone 1.089ct [On Sale August 25th at 10 PM JST] Sale price¥14,800

【Sale starts 8/25 10 PM JST】Synthetic Rutile 0.344ct Loose Gemstone Sale price¥8,800

[On sale August 25th, 10 PM] Ruby 0.168ct Loose Stone Sale price¥11,800

[On sale August 25th at 10 PM] Ruby loose stone, 0.268ct Sale price¥15,800

[On sale August 27 at 10 PM] Hemimorphite from Congo, 4.082 ct loose stone Sale price¥18,800

[Sale on August 27th at 10 PM] Synthetic Rutile 0.566ct Loose Stone Sale price¥9,800

[On sale August 27th at 10 PM JST] Russian Demantoid Garnet (Horsetail inclusion visible) 3.8mm/0.280ct Loose Sale price¥59,800

【Sales start: August 22nd, 10 PM JST】Tanzanian Mint Garnet 0.238ct Loose Stone Sale price¥12,800

[On sale August 22nd, 10 PM JST] Brazilian pink tourmaline 4.9mm/0.400ct loose stone, Hōki Kyō Sale price¥15,800

[On sale 8/22 at 10 PM] Mozambique Ruby 0.409ct Loose Stone (Houseki Kyo) Sale price¥18,800

[On sale August 22, 10 PM] Bi-Color Grossular Garnet from Kenya 0.278ct Loose Sale price¥12,800

【Sales start 8/22 10 PM JST】Bicolor Grossular Garnet from Kenya 0.906ct Loose Stone Sale price¥39,800

[On sale August 23rd at 10 PM] US Oregon Sunstone 6.0mm/ 0.729ct Loose Sale price¥18,800

[On sale August 27th at 10 PM] Sri Lankan green sapphire 0.354ct loose stone with certificate Sale price¥12,800

[On sale August 27th at 10 PM] Tanzanian spinel, 0.644ct loose stone (with needle inclusions) with a gemological report Sale price¥19,800

[On sale August 27 at 10 PM] Tanzanian Spinel 0.536ct Loose (with needle inclusions) - with appraisal report Sale price¥15,800

[On sale August 27, 10 PM JST] Brazilian blue tourmaline, 1.566 ct, loose, with appraisal Sale price¥69,800

【Sales start: August 27, 10 PM JST】Brazilian Imperial Topaz 1.324ct Loose Stone with Identification Report Sale price¥29,800

【12563130 Posted】 Nigerian CobaltGahnite 0.176ct Loose Sale price¥24,800

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.