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spinel

Spinel is the birthstone for August. Spinel comes in a wide variety of colors, including red, blue, pink, green, purple, black, gray, and colorless. It has a high Mohs hardness of 7.5 to 8, so it can be enjoyed as everyday jewelry. They are often produced in the same octahedral crystal form as diamonds, and their rounded, soft form gives them a different charm than cut gemstones.

Karatz GemMagazine
" Spinel "

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タンザニア産スピネル 0.244ctルース

Tanzania Blue Spinel 0.244ct Loose Stone Sale price¥9,800
タンザニア産スピネル 0.291ctルース

Tanzanian grey spinel 0.291ct loose stone Sale price¥9,800
タンザニア産スピネル 0.236ctルース

Tanzania Purple Spinel 0.236ct Loose Stone Sale price¥9,800
タンザニア産パープルスピネル 0.333ctルース

Tanzania Purple Spinel 0.333ct Loose Stone Sale price¥9,800
タンザニア産パープルスピネル 0.356ctルース

Tanzania Purple Spinel 0.356ct Loose Stone Sale price¥8,800
タンザニア産パープルスピネル 0.307ctルース

Tanzania Purple Spinel 0.307ct Loose Stone Sale price¥9,800
タンザニア産パープルスピネル 0.346ctルース

Tanzania Purple Spinel 0.346ct Loose Stone Sale price¥8,800
スリランカ産ピンクスピネル 0.493ctルース

Sri Lankan pink spinel 0.493ct loose stone Sale price¥14,800
Limited to 4 stones: 1 loose spinel stone from Sri Lanka. Discounts available for multiple purchases.

Limited to 4 stones: 1 loose spinel stone from Sri Lanka. Discounts available for multiple purchases. Sale price¥2,980
Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting)

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)

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)

Sri Lankan spinel and Madagascar grandidierite 7 stone set ring (Alterno setting) Sale price¥79,800
ビルマ産レッドスピネル 0.177ctルース

Burmese Red Spinel 0.177ct Loose Sale price¥9,800
ビルマ産レッドスピネル 0.201ctルース

Burmese Red Spinel 0.201ct Loose Sale price¥9,800
ビルマ産グレースピネル 0.827ctルース

Burmese gray spinel 0.827ct loose stone Sale price¥28,800
タンザニア産グレースピネル 0.844ctルース

Tanzania gray spinel 0.844ct loose stone Sale price¥18,800
タンザニア産グレースピネル 0.605ctルース

Tanzanian grey spinel 5.1mm/0.605ct loose stone Sale price¥12,800
タンザニア産グレースピネル 0.510ctルース

Tanzania Gray Spinel 5.0mm/0.510ct Loose Stone Sale price¥12,800
ビルマ産ホットピンクスピネル 0.181ctルース

Burmese hot pink spinel 0.181ct loose stone Sale price¥18,800
ビルマ産レッドスピネル 0.216ctルース

Burmese Red Spinel 3.6mm/0.216ct Loose Stone Sale price¥8,800
Limited to 2 stones: 1 loose Mahenge spinel from Tanzania (3mm, round cut) Discounts available for multiple purchases

Limited to 2 stones: 1 loose Mahenge spinel from Tanzania (3mm, round cut) Discounts available for multiple purchases Sale price¥4,980
Myanmar spinel 0.402ct loose stone

Myanmar spinel 0.402ct loose stone Sale price¥12,800
Myanmar pink spinel 0.479ct loose stone

Myanmar pink spinel 0.479ct loose stone Sale price¥12,800
Myanmar spinel 4.0mm/0.263ct loose stone

Myanmar spinel 4.0mm/0.263ct loose stone Sale price¥7,980
グレースピネル（プラチナスピネル） 1.028ctルース

Tanzanian Blue Spinel 1.028ct Loose Stone Sale price¥39,800
Mozambique Pink Spinel 0.550ct Loose

Mozambique Pink Spinel 0.550ct Loose Sale price¥14,800
ピンクスピネル 0.344ctルース

Myanmar pink spinel 0.344ct loose stone Sale price¥8,800
ピンクスピネル 0.465ctルース

Myanmar pink spinel 0.465ct loose stone Sale price¥19,800
パープルスピネル 0.434ctルース

Myanmar Purple Spinel 0.434ct Loose Stone Sale price¥12,800
ミャンマー産パープルスピネル 0.514ctルース

Myanmar Purple Spinel 4.8mm/0.514ct Loose Stone Sale price¥6,980
タンザニア産コバルトスピネル 0.118ctルース 日独

Tanzanian Cobalt Spinel (Blue Spinel) 0.118ct Loose Stone Japan-Germany Sale price¥29,800
ベトナム産コバルトスピネル 0.022ctルース 日独鑑

Vietnam Cobalt Spinel (Color Shift) 0.022ct Loose Stone, Japan-Germany Exchange Sale price¥25,800
ベトナム産コバルトスピネル（カラーシフト） 0.025ctルース 日独鑑

Vietnam Cobalt Spinel (Color Shift) 0.025ct Loose Stone, Japan-Germany Exchange Sale price¥25,800
タンザニア産コバルトスピネル 0.284ctルース

Cobalt spinel from Tanzania 0.284ct loose Japanese and German Sale price¥49,800
Pt950ミャンマー産スピネル0.18ct0.22ctピアス

Pt950 Myanmar spinel 0.18ct 0.22ct earrings Sale price¥59,800
ミャンマー産ピンクスピネル 0.520ctルース

Myanmar pink spinel 0.520ct loose stone Sale price¥12,800
Limited to 7 stones: 1 loose stone of spinel (blue/purple) from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose stone of spinel (blue/purple) from Madagascar. Discounts available for multiple purchases. Sale price¥3,980
スピネル原石１石（バイカラーやパープル系）《複数購入割引有》

Limited to 7 stones: 1 rough spinel stone (bicolor spinel, etc.) Multiple purchase discounts available Sale price¥3,980
Hot pink spinel, rose quartz, Santa Maria aquamarine, and amethyst 13-stone half eternity ring set (2.0mm)

Hot pink spinel, rose quartz, Santa Maria aquamarine, and amethyst 13-stone half eternity ring set (2.0mm) Sale price¥69,800
Paraiba tourmaline, pink sapphire, opal, pink spinel 13 stone half eternity ring set (2.0mm)

Paraiba tourmaline, pink sapphire, opal, pink spinel 13 stone half eternity ring set (2.0mm) Sale price¥98,000
【スタッフセレクション】スピネル 0.658ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Myanmar Spinel 0.658ct Loose (Semi-Custom Made Set) Sale price¥49,800
パープルスピネル 0.955ctルース

Purple spinel 0.955ct loose stone Sale price¥19,800
スリランカ産コバルトスピネル 0.281ctルース

Sri Lankan cobalt spinel 0.281ct loose stone Sale price¥59,800
ミャンマー産パープルスピネル 0.880ctルース

[12552167] Purple spinel 0.880ct loose stone Sale price¥14,800
ミャンマー産ヴァイオレットスピネル 0.426ctルース

Myanmar Violet Spinel 0.426ct Loose Sale price¥8,800
【スタッフセレクション】【KEN氏】ミャンマー産スピネル 0.482ctルース（セミオーダーメイドセッ

[Staff Selection] [Mr. KEN] Myanmar Spinel 0.482ct Loose (Semi-Custom Made Set) Sale price¥47,800
ピンクスピネル 0.713ctルース

Pink spinel 0.713ct loose stone Sale price¥8,800
ミャンマー産オレンジスピネル 0.377ctルース

Myanmar orange spinel 0.377ct loose stone Sale price¥15,800

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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.