beryl group

[On Sale at 10 PM on August 4th] Brazilian Aquamarine 0.463ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 17th] Brazilian Aquamarine 0.239ct Loose Stone (Princess Cut) Sale price¥8,800

[On Sale at 10 PM on August 9th] Brazilian Aquamarine 0.228ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 3rd] Brazilian Aquamarine 0.214ct Loose Stone (Princess Cut) Sale price¥6,980

[8/16 22:00 Sale] Brazilian Aquamarine 0.259ct Loose Stone Sale price¥6,980

Nigerian green beryl 0.437ct loose stone Sale price¥9,800

Nigerian morganite 1.149ct loose stone Sale price¥22,800

【甲州貴石切子plusthree】コロンビア産パイライトインエメラルド 5.076ctルースワッペン付

[Koshu Precious Stone Kiriko PlusThree] Colombian Pyrite in Emerald 5.076ct Loose with Patch Sale price¥98,000

Colombian oil-free emerald 0.535ct loose Japanese-German edition Sale price¥248,000

【甲州貴石切子】コロンビア産エメラルド 1.701ct《コラボ》ルースワッペン付

[Koshu Precious Stone Kiriko] Colombian Emerald 1.701ct《Collaboration》With Loose Patch Sale price¥79,800

Colombian trapiche emerald (reverse trapiche) 0.101ct rough stone Sale price¥12,800

American Benitoite 0.100ct Loose Stone (Emerald Cut) Sale price¥32,800

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980

March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980

コロンビア産エメラルドキャッツアイ1石ルース（平均0.35ct)《初めての方向け》

Colombian emerald cat's eye 1 stone loose (average 0.35ct)《For first-time users》《Multiple purchase discount available》 Sale price¥12,800

Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available Sale price¥5,980

Limited to 9 stones Gem gacha💎 April birthstone gacha: A gacha where you can win a fan-cut diamond with AGT sorting or a morganite. Multiple purchase discounts available. Sale price¥3,980

Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available Sale price¥4,980

[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set Sale price¥6,980

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980

Limited to 9 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.5mm) Multiple purchase discounts available Sale price¥6,980

Limited to 7 stones! May birthstone special offer! Colombian emerald cat's eye, 1 loose stone (highly transparent cat's eye) Multiple purchase discounts available Sale price¥7,980

Limited to 14 stones: 1 Santa Maria aquamarine (March birthstone, average 0.39ct) Multiple purchase discounts available Sale price¥3,980

Limited to 15 stones: Mozambique aquamarine rough + 2 loose stones set. Discounts available for multiple purchases. Sale price¥2,980

Morganite 1 stone (oval cut, 5 x 7mm)《New birthstone for April》《Discount available for multiple purchases》 Sale price¥3,980

Limited to 9 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.2mm) Multiple purchase discounts available Sale price¥5,980

Limited to 8 pieces: 1 Nigerian Morganite loose stone (April birthstone, average 1 carat) Multiple purchase discounts available Sale price¥4,980

Brazilian Green Beryl Cat's Eye 0.559ct Loose Stone Sale price¥5,980

Brazilian green beryl cat's eye 1.022ct loose Sale price¥8,800

Colombian Trapiche Emerald (Reverse Trapiche) 4.3mm/0.329ct Rough Stone Sale price¥29,800

ブラジル産レインボーアクアマリン 1.447ctルースイトです。宝石鑑定士が運営しています。

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.447ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.428ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.338ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.324ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.283ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.175ct Loose Stone Sale price¥7,980

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.067ct Loose Stone Sale price¥7,980

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.033ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 0.955ct Loose Stone Sale price¥7,980

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.439ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.301ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.298ct Loose Stone Sale price¥8,800

Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone Sale price¥12,800

[Koshu Precious Stones] Brazilian Aquamarine 5.209ct Loose Stone with Certificate of Authenticity Sale price¥49,800

Colombian emerald 0.202ct loose stone Sale price¥59,800

Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 2.718ct Loose Stone (Heart Shape) Sale price¥25,800

[On sale at 10pm on August 17th] Aquamarine 0.680ct loose stone Sale price¥14,800

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 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.