New stock

[On sale 10/13 at 22:00] Brazilian bicolor tourmaline cat's eye 22.056ct loose stone Sale price¥198,000

[On sale at 10pm on 13/10] Brazilian Rubellite 3.022ct loose stone Sale price¥98,000

[On sale at 10pm on 14th October] 3.429ct loose bi-color tourmaline from Congo Sale price¥128,000

[On sale at 10pm on 14/10] Afghanistan Green Tourmaline 11.5mm/5.854ct Loose Sale price¥198,000

[On sale at 10pm on 14/10] 1.065ct loose pink tourmaline from Mozambique Sale price¥15,800

[On sale at 10pm on 14th October] 1.706ct loose rubellite from Mozambique Sale price¥39,800

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

[On sale at 10/14 22:00] Oregon Sunstone from the United States 0.372ct loose stone Sale price¥12,800

[On sale at 10pm on 14/10] Australian Chrysoprase 11.3mm/5.280ct loose stone Sale price¥12,800

[On sale at 10pm on 14th October] 1.315ct loose spessartine garnet from Madagascar Sale price¥18,800

[On sale at 10pm on 14/10] Andesine Labradorite (also known as Blue Moonstone) 1.096ct loose stone Sale price¥45,800

[On sale at 10pm on 14/10] Andesine Labradorite (also known as Blue Moonstone) 0.949ct loose stone Sale price¥45,800

[On sale at 10pm on 12/10] Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose Sale price¥55,800

《Yurakucho Marui 2024112 takeout》【10/12 22:00 sale】Myanmar gray spinel (platinum spinel) 5mm/0.557ct loose stone Sale price¥12,800

[On sale at 10pm on 10/23] 0.527ct Oregon Sunstone loose stone (princess cut) from the US Sale price¥12,800

[On sale at 10pm on 12/10] Oregon Sunstone from the United States 4.9mm/0.417ct loose stone Sale price¥22,800

[On sale at 10pm on 10/16] Oregon Sunstone from the United States 5.0mm/0.460ct loose stone Sale price¥19,800

[On sale at 10pm on 14th October] Madagascar Aquamarine 1.056ct Loose Sale price¥19,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.183ct loose Sale price¥24,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.366ct loose Sale price¥59,800

[On sale 11/1 22:00] Yellow Diamond (Sugarloaf Cut) 0.348ct Loose Sale price¥39,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.173ct loose Sale price¥19,800

Sold out

[On sale from 11/1 at 22:00] Diamond (cabochon cut) 0.172ct loose

[On sale at 10pm on 12/10] Argentine Inca Rose 15.960ct loose stone Sale price¥12,800

[On sale at 10pm on 12/10] Argentine Inca Rose 20.650ct loose stone Sale price¥15,800

[On sale at 10pm on 12/10] Argentine Inca Rose 15.190ct loose stone Sale price¥12,800

Topaz 1.666ct loose stone Sale price¥12,800

[On sale 11/9 at 22:00] Tanzanian rhodolite garnet 10.608ct loose stone Sale price¥98,000

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

[On sale at 10pm on 15th October] 1.779ct Spessartine Garnet Loose Stone from Madagascar Sale price¥29,800

[On sale at 10pm on 15/10] Mozambique aquamarine 3.301ct loose stone Sale price¥59,800

[On sale at 10pm on 10/16] Myanmar red spinel 0.524ct rough stone (Star of David) Sale price¥14,800

[On sale at 10pm on 10/16] Myanmar red spinel 0.281ct rough stone (Star of David) Sale price¥8,800

[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

[On sale at 10pm on 10/16] Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct loose stone Sale price¥22,800

[On sale at 10pm on 10/23] Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.330ct loose stone Sale price¥15,800

[On sale at 10pm on 10/24] Brazilian Paraiba Tourmaline in Quartz 3.6mm/0.162ct loose stone Sale price¥14,800

[12555221] Brazilian Paraiba Tourmaline in Quartz 0.143ct Loose Stone Sale price¥12,800

[On sale at 10pm on November 9th] Brazilian Paraiba Tourmaline in Quartz 1.146ct loose stone Sale price¥29,800

[12555217] Brazilian Paraiba Tourmaline in Quartz 1.287ct Loose Stone Sale price¥29,800

[On sale at 10pm on 10/16] Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.314ct loose stone Sale price¥29,800

《Yurakucho Marui 2024112 Carry-out》【10/16 22:00 Sale】German Auchenite 3.0mm/0.089ct Loose Sale price¥29,800

[On sale at 10pm on 14/10] Brazilian Medusa Quartz (Paraiba Quartz) 0.717ct loose stone Sale price¥6,980

[On sale at 10/14 22:00] Brazilian dendritic quartz 3.650ct loose stone Sale price¥5,980

[On sale at 10pm on 10/17] Brazilian Limonite in Topaz 3.399ct loose stone Sale price¥8,800

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