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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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スリランカ産スピネル 0.763ctルース

【3/8 22時販売】スリランカ産スピネル 0.763ctルース Sale price¥12,800
スリランカ産スピネル 0.153ctルース

【3/9 22時販売】スリランカ産ブルースピネル 0.153ctルース Sale price¥8,800
Pt950スリランカ産パープルスピネル 0.29ct・ダイヤモンドリング

【3/8 22時販売】Pt950スリランカ産パープルスピネル 0.29ct・ダイヤモンドリング Sale price¥69,800
パープルスピネル 0.311ctルース

【3/2 22時販売】ミャンマー産パープルスピネル 0.311ctルース Sale price¥8,800
スリランカ産ブルースピネル 0.519ctルース

[On sale at 10pm on 2/22] Sri Lankan Blue Spinel 0.519ct Loose Sale price¥12,800
[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery

[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery Sale price¥6,980
Red spinel rough stone 1 stone (raspberry color)《Discount available for multiple purchases》

Red spinel rough stone 1 stone (raspberry color)《Discount available for multiple purchases》 Sale priceFrom ¥3,980
ピンクスピネル1

1 stone loose pink spinel (princess cut, approx. 2.5mm)《Discount available for multiple purchases》 Sale price¥2,980
ビルマ産スピネル1石ルース（ペンタゴナルカット）《バンコク買付品》

1 stone loose spinel from Myanmar (Pentagonal cut)《Discount available for multiple purchases》 Sale price¥3,980
Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥5,980
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
タンザニア・マヘンゲ産ピンクスピネル原石・ルース2石セット（プリンセスカット）《複数購入割引有》

《Limited to 20 stones》 Pink spinel raw stone from Mahenge, Tanzania, loose 2 stone set (princess cut)《Multiple purchase discount available》 Sale price¥3,980
スピネル 1石《カスタムカット》

Spinel 1 stone《Custom cut》《Multiple purchase discount available》 Sale price¥5,980
Limited to 6 stones: 1 loose spinel stone from Myanmar (pentagonal cut, 3-3.5mm) Multiple purchase discounts available

Limited to 6 stones: 1 loose spinel stone from Myanmar (pentagonal cut, 3-3.5mm) Multiple purchase discounts available Sale price¥2,580
Limited to 18 stones: Myanmar spinel (3.5mm, pentagonal cut) 1 loose stone. Discounts available for multiple purchases.

Limited to 18 stones: Myanmar spinel (3.5mm, pentagonal cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980
Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases. Sale price¥4,980
[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available] Sale price¥3,980
Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980
タンザニア産ピンクスピネル 0.266ctルース

[On sale at 22:00 on 2/11] Tanzanian pink spinel 0.266ct loose stone Sale price¥6,980
タンザニア産ピンクスピネル 0.487ctルース

[On sale at 22:00 on 2/10] 0.487ct loose orange pink spinel from Tanzania Sale price¥12,800
[On sale from 22:00 on 2/1] [Limited to 6 stones] 1 loose pink spinel from Mahenge, Tanzania (round cut, 3.0mm) [Multiple purchase discounts available]

[On sale from 22:00 on 2/1] [Limited to 6 stones] 1 loose pink spinel from Mahenge, Tanzania (round cut, 3.0mm) [Multiple purchase discounts available] Sale price¥6,980
タンザニア産スピネル 0.165ctルース

[On sale 2/1 at 22:00] Tanzanian blue spinel 0.165ct loose stone Sale price¥8,800
タンザニア産スピネル 0.244ctルース

[On sale 2/1 at 22:00] Tanzanian 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

[On sale at 22:00 on 2/6] 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

[On sale 2/6 at 22:00] Tanzanian 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

[On sale 2/6 at 22:00] Tanzanian 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

[On sale 2/2 at 10pm] Tanzanian 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

[On sale 2/6 at 22:00] Tanzanian 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

[On sale 2/2 at 10pm] Tanzanian purple spinel 0.346ct loose stone Sale price¥8,800
スリランカ産ピンクスピネル 0.388ctルース

Sri Lankan pink spinel 0.388ct 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
タンザニア産マヘンゲスピネル 0.328ctルース

[E_25 Yurakucho Marui Take-out] Tanzanian Mahenge Spinel 0.328ct Loose Sale price¥12,800
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
タンザニア産レッドスピネル 0.197ctルース

Tanzanian red spinel 0.197ct loose stone 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

[E_25 Yurakucho Marui Take-out] Tanzanian Grace Spinel 5.0mm/0.510ct Loose Sale price¥12,800
タンザニア産マヘンゲスピネル 0.148ctルース

Tanzania Mahenge Spinel (Hot Pink Spinel) 0.148ct Loose Stone Sale price¥14,800
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
タンザニア産コバルトスピネル 0.458ctルース 日独鑑【宝石図鑑掲載】

Tanzanian Cobalt Spinel 0.458ct Loose Stone, Japan-German Index [Featured in the Gemstone Encyclopedia] Sale price¥79,800

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.

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