quartz

Quartz is a relatively well-known gemstone, with many types and quantities in circulation. It is broadly classified into two types: transparent to translucent single crystal and translucent to opaque polycrystal. Single crystal stones include amethyst, citrine, and rose quartz, while polycrystalline stones include chalcedony, agate, and jasper. Many contain other minerals and liquids as inclusions.

Karatz GemMagazine
" quartz "

[On sale 10/26 at 10pm] {4 stones remaining} Brazilian Paraiba Quartz (Medusa Quartz, Giralite in Quartz) 1 loose stone {Multiple purchase discounts available} Sale price¥5,980

ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ）12mm/7.140ctルース

[On sale 11/12 at 10pm] Brazilian rutilated quartz (rutilated quartz) 12mm/7.140ct loose stone Sale price¥9,800

ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ） 12mm/6.709ctルース

[On sale 11/12 at 10pm] Brazilian rutilated quartz (rutilated quartz) 12mm/6.709ct loose stone Sale price¥9,800

[On sale 11/6 at 22:00] Brazilian emerald in quartz 2.810ct loose stone Sale price¥4,980

[On sale 11/6 at 22:00] Brazilian emerald in quartz 2.332ct loose stone Sale price¥3,980

[On sale at 10pm on November 9th] Quartz 15.769ct loose stone Sale price¥9,800

[On sale at 10pm on November 9th] Quartz 13.321ct loose stone Sale price¥9,800

[On sale 11/8 at 22:00] Brazilian Quartz 13.991ct Loose Patch Sale price¥9,800

[On sale 11/8 at 22:00] Pakistani ruby in quartz 1.429ct loose stone Sale price¥12,800

[On sale 11/8 at 22:00] Brazilian platinum rutilated quartz (brookite in quartz) 1.492ct loose stone Sale price¥9,800

[On sale 11/8 at 22:00] Brazilian platinum rutilated quartz (brookite in quartz) 1.258ct loose stone Sale price¥7,980

[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery Sale price¥6,980

Oil-in-quartz from Pakistan《Moving bubble type》1 stone loose《Discount available for multiple purchases》 Sale price¥3,980

Brazilian Paraiba Quartz (Medusa Quartz, Giralite in Quartz) Small Size 1 Stone Loose Discount for Multiple Purchases Sale price¥2,980

Brazilian rutilated quartz (rutilated quartz) 1 loose stone (6mm) {Multiple purchase discounts available} Sale price¥1,500

Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》 Sale price¥3,980

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available} Sale price¥1,580

Goethite in Quartz from Kazakhstan, 1 loose stone {Multiple purchase discounts available} Sale price¥2,980

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580

Rose quartz 1 stone (heart, approx. 23ct)《Discount available for multiple purchases》 Sale price¥3,980

《再販売》ハイヒール（スモーキークォーツ）1石《宝石ハイヒール》》6個 - カラッツSTORE

High heels (smoky quartz) 1 stone (gem high heels)《Multiple purchase discount available》 Sale price¥6,980

Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available Sale price¥3,980

Rutilated quartz 1 stone loose (12mm)《Multiple purchase discount available》 Sale price¥1,980

【宝石商の道具】冷却ヒビ入れ染色クォーツ色違い2石セット - カラッツSTORE

[Jeweler's Tools] Cooling Cracked Dyed Quartz Set of 2 Stones in Different Colors (Discount available for multiple purchases) Sale price¥2,980

Lavender Quartz 1 stone (Scorollite) 3ct 1 stone《Multiple purchase discount available》 Sale price¥4,980

[On sale from 10/13 at 10pm] Limited quantity Colombian mango quartz (medium size) Multiple purchase discounts available Sale price¥1,680

[On sale from 10/13 at 10pm] Limited quantity Colombian mango quartz (small size - slim type) Multiple purchase discounts available Sale price¥1,180

[On sale from 10/13 at 10pm] Limited quantity Colombian mango quartz (small size - thick) Multiple purchase discounts available Sale price¥1,280

Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available Sale price¥4,980

《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》 Sale price¥3,980

Limited to 6 stones: Brazilian Medusa Quartz (Paraiba Quartz) cat cut 1 stone loose (6mm) Multiple purchase discount available Sale price¥7,980

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980

[Limited to 9 stones] Brazilian green quartz 1 stone loose (10mm) [Multiple purchase discount available] Sale price¥3,980

【甲州貴石切子】デュモルチェライトインクォーツ 3.160ctルース - カラッツSTORE

[Koshu Precious Stone Kiriko] Dumortierite in Quartz 3.160ct loose with emblem Sale price¥55,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.807ctルース

[On sale from 10/20 at 10pm] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.807ct loose stone Sale price¥15,800

【甲州貴石切子】ルチルクォーツ（ルチルレイテッドクォーツ） 12.860ctルース《コラボ》ワッペン

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cut] Brazilian Rutile Quartz (Rutile-Rated Quartz) 12.860ct Loose Stone [Collaboration] Patch Sale price¥59,800

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cut] Brazilian Rutile Quartz (Rutiled Quartz) 2.270ct Loose Patch Sale price¥29,800

【甲州貴石切子plusthree】K18PGローズクォーツ2.889 ctペンダントトップ（ネックレストップ）

《Yurakucho Marui 2024112 takeout》【10/20 22:00 sale】【Koshu precious stone cut glass plusthree】K18PG rose quartz 2.889ct pink sapphire pendant top (necklace top) Sale price¥79,800

Brazilian dumortierite in quartz 2.738ct loose Sale price¥8,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.920ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.920ct Loose Stone Sale price¥6,980

《Yurakucho Marui 2024112 takeout》【10/11 22:00 sale】Brazilian quartz in quartz 10.349ct loose stone Sale price¥15,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.569ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.569ct loose Sale price¥12,800

Brazilian Garden Quartz 80.014ct Loose Stone Sale price¥19,800

[12555234] Brazilian Paraiba Tourmaline in Quartz 2.622ct Loose Stone Sale price¥49,800

[On sale at 10pm on November 9th] Brazilian Paraiba Tourmaline in Quartz 2.674ct loose stone Sale price¥54,800

[12555232] Brazilian Paraiba Tourmaline in Quartz 2.827ct Loose Stone Sale price¥49,800

[12555231] Brazilian Paraiba Tourmaline in Quartz 3.049ct Loose Stone Sale price¥49,800

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