Birthstone list

【KEN氏】ロードライトガーネット 0.635ctルース - カラッツSTORE

[KEN] Rhodolite Garnet 0.635ct loose Sale price¥8,800

[Cat cut] Rubellite 7mm/1.540ct loose Sale price¥19,800

Russian demantoid garnet (horsetail recognized) 0.291ct loose Sale price¥49,800

Watermelon tourmaline 5.554ct loose Sale price¥9,800

Pink tourmaline 0.307ct loose Sale price¥5,980

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 3mm/0.159ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 3mm/0.159ct loose Sale price¥25,800

ロシア産デマントイドガーネット（ホーステール認む） 3mm/0.138ctルース

Russian demantoid garnet (horsetail recognized) 3mm/0.138ct loose Sale price¥24,800

Colombian trapiche emerald (reverse trapiche) 0.107ct rough stone Sale price¥14,800

Pt950 benitoite 0.10ct/diamond ring Sale price¥69,800

K18バイカラーサファイア0.129ct・ブルーサファイアリング - カラッツSTORE

K18 bicolor sapphire 0.129ct/blue sapphire ring Sale price¥69,800

Colombian emerald cat's eye 0.834ct loose Sale price¥59,800

《Yurakucho Marui 2024112 takeout》Royal Blue Sapphire 1.44ct Loose GIA Sale price¥188,000

ロシア産デマントイドガーネット（ホーステール認む） 5.5mm/0.710ctルース

Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose Sale price¥198,000

ロシア産デマントイドガーネット（ホーステール認む） 5.3mm/0.692ctルース

Russian demantoid garnet (horsetail recognized) 5.3mm/0.692ct loose Sale price¥178,000

Montana Sapphire 2.7mm/0.098ct Loose (Yellow) Sale price¥9,800

Montana Sapphire 2.4mm/0.071ct Loose (Yellow) Sale price¥7,980

ロシア産デマントイドガーネット（ホーステール認む） 2.9mm/0.165ctルース

Russian demantoid garnet (horsetail recognized) 2.9mm/0.165ct loose Sale price¥33,800

ロシア産デマントイドガーネット（ホーステール認む） 2.8mm/0.187ctルース

Russian demantoid garnet (horsetail recognized) 2.8mm/0.187ct loose Sale price¥25,800

ファンシーインテンスイエローダイヤモンド 0.126ctルース(FANCY INTENSE YELLOW, SI-1)

FANCY INTENSE YELLOW, SI-1 Sale price¥25,800

Montana Sapphire 3mm/0.149ct Loose (Rock Creek) Sale price¥19,800

Benitoite 0.100ct loose (emerald cut) Sale price¥35,800

Umba sapphire (from Tanzania) 0.503ct loose Sale price¥8,800

Demantoid garnet from Madagascar 0.074ct loose Sale price¥8,800

Demantoid garnet from Madagascar 0.062ct loose Sale price¥11,800

Mexican cantera opal 12.401ct loose Sale price¥15,800

Mexican cantera opal 4.711ct loose Sale price¥15,800

Opal 426.985ct rough stone Sale price¥39,800

[Koshu precious stone cut plusthree] Citrine 6mm/0.753ct loose with patch Sale price¥25,800

[Koshu precious stone cut plusthree] Citrine 0.901ct loose with patch Sale price¥29,800

【シミズ貴石代表・清水幸雄氏】ラピスラズリ 32.292ct箸置き箔押しサイン＆ワッペン付き

[Shimizu Precious Stones Representative Yukio Shimizu] Lapis lazuli 32.292ct chopstick rest (step cut) with foil stamped signature and emblem Sale price¥15,800

【シミズ貴石代表・清水幸雄氏】ラピスラズリ 33.483ct箸置き箔押しサイン＆ワッペン付き

[Shimizu Precious Stones Representative Yukio Shimizu] Lapis lazuli 33.483ct chopstick rest (step cut) with foil-stamped signature and patch Sale price¥15,800

【シミズ貴石代表・清水幸雄氏】アメジスト 27.955ct箸置き箔押しサイン＆ワッペン付き

[Mr. Yukio Shimizu, representative of Shimizu Precious Stones] Rose amethyst 27.955ct chopstick rest (step cut) with foil-stamped signature and patch Sale price¥16,800

【シミズ貴石代表・清水幸雄氏】アメジスト 23.833ct箸置き箔押しサイン＆ワッペン付き

[Mr. Yukio Shimizu, representative of Shimizu Precious Stones] Pink amethyst 23.833ct chopstick rest (cylindrical shape) with foil-stamped signature and emblem Sale price¥9,800

【シミズ貴石代表・清水幸雄氏】アメジスト 29.154ct箸置き箔押しサイン＆ワッペン付き

[Mr. Yukio Shimizu, representative of Shimizu Precious Stones] Amethyst 29.154ct chopstick rest (cylindrical shape) with foil-stamped signature and emblem Sale price¥12,800

【シミズ貴石代表・清水幸雄氏】ラピスラズリ 34.074ct箸置き箔押しサイン＆ワッペン付き

[Mr. Yukio Shimizu, representative of Shimizu Precious Stones] Lapis lazuli 34.074ct chopstick rest (cylindrical shape) with foil-stamped signature and patch Sale price¥9,800

【ダンデライオンカット】YAG（イットリウムアルミニウムガーネット）8mm/2.752ctルース

[Dandelion cut] YAG (yttrium aluminum garnet) 8mm/2.752ct loose Sale price¥55,800

Colombian trapiche emerald (reverse trapiche) 0.178ct rough stone Sale price¥22,800

Mexican cantera opal 8.454ct loose Sale price¥6,980

Fire opal 1.547ct loose Sale price¥12,800

Chrome tourmaline 0.852ct loose Sale price¥19,800

Lavender tanzanite 0.644ct loose Sale price¥8,800

【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¥128,000

【甲州貴石切子plusthree】メキシコ産ファイアオパール 1.981ctルースワッペン付

[Koshu precious stone Kiriko plusthree] Fire opal from Mexico 1.981ct loose with emblem Sale price¥59,800

Tanzanite 1.024ct loose Sale price¥15,800

Colombian emerald 32.379ct rough stone Sale price¥19,800

Iron opal 177.315ct loose Sale price¥22,800

Colombian pyrite emerald 46.182ct rough stone Sale price¥14,800

Colombian pyrite emerald 70.233ct rough stone Sale price¥6,980

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments