New stock

[On sale 11/2 at 10pm] Emerald 0.156ct loose stone Sale price¥8,800

[On sale 11/2 at 10pm] Madagascar sphene 6.2mm/0.906ct loose stone Sale price¥12,800

[On sale 11/2 at 10pm] Color shift amethyst 4.499ct loose stone Sale price¥18,800

[On sale 11/2 at 10pm] Color shift amethyst 4.191ct loose stone Sale price¥14,800

[On sale 11/2 at 10pm] Color shift amethyst 1.216ct loose stone Sale price¥8,800

[On sale 11/3 at 22:00] Madagascar Apatite 1.038ct Loose Sale price¥12,800

[On sale 11/3 at 22:00] Madagascar pink tourmaline 0.543ct loose stone Sale price¥14,800

[On sale 11/3 at 22:00] Madagascar sphene 1.386ct loose stone Sale price¥12,800

[On sale 11/3 at 22:00] Madagascar sphene 0.673ct loose stone Sale price¥15,800

[On sale 11/3 at 22:00] Tanzanite from Tanzania 4.6mm/0.429ct loose stone Sale price¥12,800

[On sale 11/3 at 22:00] Tanzanian bicolor zoisite 4.6mm/0.401ct loose stone Sale price¥12,800

[On sale at 10pm on 11/6] Tanzanian bicolor zoisite 0.450ct loose stone Sale price¥9,800

[On sale 11/3 at 22:00] Tanzanian bicolor zoisite 4.7mm/0.415ct loose stone Sale price¥12,800

[On sale at 10pm on 11/6] Tanzanite from Tanzania 0.478ct loose stone Sale price¥9,800

[On sale 11/6 at 22:00] Tanzanite from Tanzania 0.351ct loose stone Sale price¥9,800

[On sale 11/6 at 22:00] Tanzanian green zoisite 0.335ct loose stone Sale price¥12,800

[On sale 11/3 at 22:00] Madagascar Grandidierite 0.169ct loose stone Sale price¥18,800

[On sale 11/3 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.213ct Loose Sale price¥29,800

[On sale 11/3 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.210ct Loose Sale price¥29,800

[On sale 11/3 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.161ct Loose Sale price¥22,800

[On sale 11/3 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.174ct Loose Stone Sale price¥18,800

[On sale 11/3 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.170ct Loose Sale price¥18,800

[On sale 11/6 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.127ct Loose Sale price¥9,800

[On sale 11/6 at 22:00] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.114ct Loose Sale price¥9,800

[On sale at 10pm on 11/4] Pakistani Veirinite 0.096ct loose stone Sale price¥12,800

[On sale at 10pm on 11/4] Pakistani Veirinite 0.098ct loose stone Sale price¥12,800

[On sale at 10pm on 11/4] Pakistani Veirinite 0.068ct loose stone Sale price¥6,980

[On sale 11/4 at 22:00] Spanish Sphalerite 7mm/1.676ct loose stone Sale price¥35,800

[On sale 11/4 at 22:00] Brazilian Morganite 1.296ct loose stone Sale price¥8,800

[On sale 11/4 at 22:00] Montana Sapphire 3.0mm/0.119ct Loose (Blue Sapphire) Sale price¥6,980

[On sale 11/4 at 10pm] Montana Sapphire 3.7mm/0.272ct Loose (Blue Sapphire) Sale price¥9,800

[11/4 22:00 Sale] Sri Lankan Colorless Iolite (Cordierite) 4.023ct Loose Stone, Japan-Germany Exchange Sale price¥69,800

[On sale 11/6 at 22:00] Myanmar Trapiche Ruby 0.230ct loose stone Sale price¥18,800

[On sale 11/6 at 22:00] Mongolian Andesine 0.856ct 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 from 10pm on November 2nd] Limited to 4 sets: Bicolor fluorite rough stone and 2 loose stones set [Multiple purchase discounts available] Sale price¥5,980

[On sale from 10pm on November 2nd] Limited quantity: Impregnated ruby 1 loose stone (4mm, round cut, identification instructions included) Multiple purchase discounts available Sale price¥1,980

[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] 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

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