Product list

[On sale 11/8 at 22:00] Afghanistan Lapis Lazuli 11.583ct Loose Stone Patch Sale price¥7,980

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

[On sale 11/8 at 22:00] Canadian Amber 20.540ct Loose Patch Sale price¥9,800

[On sale 11/8 at 22:00] Australian green opal 4.990ct loose Sale price¥9,800

[On sale at 10pm on November 8th] Brazilian bicolor tourmaline 0.582ct loose stone Sale price¥6,980

[On sale 11/8 at 22:00] Sri Lankan Hessonite Garnet 1.048ct Loose Sale price¥8,800

[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

[On sale at 10pm on November 9th] Australian black opal 0.386ct loose Sale price¥39,800

[On sale from 10/29 at 10pm] YAG (Yttrium Aluminum Garnet) 7.0mm/1.772ct loose stone Sale price¥9,800

[On sale at 10pm on 10/29] Turkish color change diaspore 0.641ct loose stone Sale price¥3,980

[On sale at 10pm on 10/29] Madagascar pink sapphire 0.273ct loose stone Sale price¥5,980

[On sale at 10pm on 10/29] Brazilian bicolor tourmaline 1.242ct loose stone Sale price¥15,800

[On sale at 10pm on 10/29] Brazilian bicolor tourmaline 1.209ct loose stone Sale price¥9,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 10.840ctルース

[On sale from 10/29 at 10pm] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 10.840ct loose stone Sale price¥8,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 9.920ctルース

[On sale from 10/29 at 10pm] 9.920ct loose Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture Sale price¥8,800

[On sale at 10pm on 10/28] Brazilian bicolor tourmaline 1.910ct loose stone Sale price¥25,800

[On sale at 10pm on 10/28] Brazilian bicolor tourmaline 1.540ct loose stone Sale price¥25,800

[On sale at 10pm on 10/28] Montana Sapphire (Blue Sapphire) 0.207ct Loose Sale price¥6,980

[12555519] American Neptunite 0.109ct loose stone Sale price¥12,800

[On sale 11/13 at 22:00] American Neptunite 0.259ct loose stone Sale price¥25,800

[On sale at 10pm on 10/30] Madagascar Celestite 11.5mm/7.246ct loose stone Sale price¥18,800

[On sale 11/13 at 22:00] Madagascar Celestite 11.0mm/7.556ct loose stone Sale price¥18,800

[On sale 11/13 at 22:00] Madagascar celestite 5.389ct loose stone Sale price¥13,800

[On sale at 10pm on 10/30] Madagascar Celestite 9.7mm/4.927ct loose stone Sale price¥12,800

[On sale at 10pm on 10/30] Madagascar Celestite 8.7mm/4.425ct loose stone Sale price¥12,800

[On sale at 10pm on 10/30] Madagascar Celestite 8.4mm/3.991ct loose stone Sale price¥12,800

ブラジル産パライバトルマリン 3.3mm/0.123ctルース《エイトリータ》（CuO:2.0%、MnO:0.8%）

[On sale from 11/1 at 22:00] Brazilian Paraiba Tourmaline 3.3mm/0.123ct loose stone "Eitreta" (CuO: 2.0%, MnO: 0.8%) Sale price¥128,000

[On sale at 10pm on 10/30] Madagascar White Topaz (Needle-in Topaz) 4.086ct Loose Sale price¥15,800

[On sale at 10pm on 10/26] Madagascar colorless apatite 1.013ct loose stone Sale price¥8,800

[On sale 11/2 at 10pm] Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone Sale price¥128,000

[On sale at 10pm on 10/26] Brazilian Rubellite 2.022ct loose stone Sale price¥55,800

[On sale 11/2 at 10pm] Brazilian Rubellite (Red Tourmaline) 1.525ct Loose Sale price¥39,800

[On sale at 10pm on 10/26] Sri Lankan chrysoberyl cat's eye 0.519ct loose stone Sale price¥8,800

[On sale from 10/27 at 10pm] Brazilian Alexandrite 2.8mm/0.070ct loose stone Sale price¥8,800

[On sale at 10pm on 10/26] Silky Diamond 3.5mm/0.178ct Loose Sale price¥19,800

[On sale at 10pm on 10/27] Vietnam aquamarine 0.456ct loose stone Sale price¥8,800

[On sale from 10/25 at 10pm] Yellow Diamond 0.340ct Loose (M, SI-1, Marquise Cut) Sale price¥25,800

[On sale from 10/25 at 10pm] Diamond 0.224ct loose stone (D, SI-1, triangle cut) Sale price¥25,800

[On sale at 10pm on 10/28] American Peridot 0.729ct loose stone Sale price¥9,800

[On sale 10/28 at 10pm] American Peridot 4.2mm/0.314ct loose stone Sale price¥6,980

[On sale at 10pm on 10/30] American Peridot 1.084ct loose stone Sale price¥9,800

[On sale at 10pm on 10/30] Myanmar pink spinel 0.344ct loose stone Sale price¥8,800

[On sale at 10pm on 10/25] Tanzanite from Tanzania 0.298ct loose stone Sale price¥9,800

[On sale at 10pm on 10/25] Tanzanite from Tanzania 0.250ct loose stone Sale price¥7,980

[On sale at 10pm on 10/25] Tanzanite from Tanzania 0.326ct loose stone Sale price¥8,800

[On sale at 10pm on 10/25] Tanzanian bicolor zoisite 0.320ct loose stone Sale price¥7,980

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