colored stone loose

A list of colored stones and loose gemstones.

[On sale July 28th at 10 PM] Kochi Prefecture produced blood coral 1.238ct loose stone Sale price¥9,800

【Sales start: July 28, 10 PM JST】Kochi Prefecture Produced Blood Coral 1.286ct Loose Stone Sale price¥9,800

【For Sale July 28, 10 PM JST】Kochi Prefecture Red Coral Loose Stone 1.379 ct Sale price¥11,800

[On sale July 26th at 10 PM] Kochi Prefecture Red Coral 1.321ct Loose Stone Sale price¥9,800

[Available 7/28 10 PM JST] Colombian Emerald, 4.5mm/0.286ct Loose Gemstone, Hoki-kyo Sale price¥69,800

【7/29 10 PM Sale】Colombian Emerald Cat's Eye 0.060ct Loose Stone (Houseki Kyo Appraisal) Sale price¥15,800

【Sales start: July 30, 10 PM JST】Tanzanian Bi-Color Grossular Garnet 0.319ct Loose Stone Sale price¥19,800

[On sale July 26th at 10 PM] Madagascar Padparadscha Sapphire 3.4mm/0.208ct Loose Stone with Central Gem Lab Certificate Sale price¥45,800

[On sale July 31, 10 PM JST] Madagascar Padparadscha Sapphire 3.5mm/0.234ct Loose Stone with Central Gemological Laboratory certificate Sale price¥49,800

[Sale begins August 5th at 10 PM] Colombian Emerald 0.792ct Loose Stone with Certification Sale price¥39,800

[On sale August 5th at 10 PM] Afghan Green Hauyne 0.086ct Loose Stone with Certificate Sale price¥22,800

[On sale July 28th at 10 PM] Cambodian Blue Zircon (Ratanakiri Blue) 1.360ct Loose Stone with Certificate Sale price¥18,800

[On sale August 8th, 10 PM JST] Mexican Cantera Opal 6.357ct Loose Stone (Impregnated) with Japan-Germany Gemological Report Sale price¥18,800

[On sale August 8th, 10 PM JST] Mexican Cantera Opal 5.079 ct Loose Stone (Filled) with Japan-Germany Gemstone Appraisal Sale price¥25,800

[On sale 7/28 10 PM] USA Oregon Sunstone 6.7mm/1.032ct Loose Stone Sale price¥18,800

[Sale on Aug 1st at 10 PM] Afghan Hauyne 0.185ct Loose Stone with Certificate Sale price¥65,800

Brazilian Golden Beryl 7.2mm/1.369ct Loose Stone with Certificate of Authenticity (Sale begins August 2nd at 10 PM JST) Sale price¥7,980

[12563386 posted] Brazilian Dioptase 0.487ct Loose Stone Sale price¥12,800

[Listed as 12563246] Mexican Fire Opal 1.115ct Loose Sale price¥25,800

【Listed on 12563251】Afghan Hauyne 0.080ct Loose Sale price¥25,800

[12562256 listed] American Neptunite 0.199ct Loose Sale price¥55,800

[Posted on 12563480] Madagascar Teal Green Sapphire 0.470ct Loose Stone Sale price¥29,800

[Listed as 12563489] Sri Lankan Blue Sapphire 0.636 ct Loose Stone Sale price¥39,800

[Listed as 12563731] Brazilian Indicolite Tourmaline 0.404 ct Loose Stone Sale price¥39,800

[Listed as 12563371] Zimbabwe Euclase 0.087ct Loose Gemstone Sale price¥19,800

0.522ct bicolor sapphire loose stone from Madagascar Sale price¥6,980

マラウイ産ピンクサファイア（マラウイサファイア） 3.0mm/0.128ctルース

[Listed as 12563467] Malawi sapphire 0.128ct loose stone Sale price¥18,800

[Published on 12563087] Unheated Ruby 0.216ct Loose Stone Sale price¥59,800

Tanzanian Zircon 1.237 ct Loose Stone [Listing 12563381] Sale price¥15,800

Jeremejevite 0.226ct Loose Sale price¥45,800

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800

[On sale July 24 at 10 PM] Limited to 5 stones: Andesine-Labradorite (Rainbow Moonstone) from Balangoda, Sri Lanka (Pear Shape Buff Top Cut, 5.0x3.0mm) - 1 Loose Stone (Multi-purchase discount available) Sale price¥5,980

[On sale July 24 at 10 PM] Limited to 5 stones: Moonstone from Madiyagoda, Sri Lanka (June birthstone, oval buff top cut, 5.0x4.0mm), 1 loose stone. (Multiple purchase discount available) Sale price¥5,980

[Sales begin July 24 at 10 PM] Limited 5 Stones: Moonstone from Mitiyagoda, Sri Lanka (June Birthstone, Round Buff-Top Cut, 4.0mm) - 1 Loose Stone [Multiple Purchase Discount Available] Sale price¥5,980

[On sale July 19th at 10 PM] Limited to 12 Stones: Spanish Sphalerite Gacha Single Stone Loose Gemstone [Multi-purchase discount available] Sale price¥3,980

[Sales begin July 21st, 10 PM] Kochi Prefecture Harvested Red Coral 1.446ct Loose Stone Sale price¥12,800

[On sale July 21st, 10 PM JST] Kochi Prefecture natural red coral 1.119ct loose stone Sale price¥11,800

[On sale July 18, 10 PM JST] Kochi Prefecture Blood Coral 1.001ct Loose Stone Sale price¥12,800

[Sales begin 10 PM on July 18] Kochi Prefecture blood coral, 1.290 ct loose stone Sale price¥12,800

【Sales Start: July 18, 10 PM JST】Kochi Prefecture Blood Red Coral 1.348ct Loose Stone Sale price¥12,800

[Sale starts 10 PM, July 17th] High-Grade Red Coral (Kochi Prefecture) 1.063ct Loose Stone Sale price¥12,800

[On sale July 16th at 10 PM] Kochi Prefecture produced oxblood coral, 1.087ct loose gemstone Sale price¥12,800

【Sales begin 10:00 PM on July 16th】Brazilian Limonite In Quartz (Aurora Quartz) 2.094ct Loose Stone Sale price¥8,800

[On Sale July 16, 10 PM JST] Brazilian Limonite in Quartz (Aurora Quartz) 2.291ct Loose Stone Sale price¥9,800

[On sale July 17 at 10 PM] Brazilian Dendritic Quartz 4.571ct Loose Stone Sale price¥12,800

[Sale starts 10 PM JST, July 17] Brazilian Dendritic Quartz 5.085ct Loose Gemstone Sale price¥12,800

[Sale on July 17th, 10 PM JST] Australian Rainbow Lattice Sunstone 0.850ct Loose Gemstone Sale price¥8,800

[On sale July 17 at 10 PM JST] Australian Rainbow Lattice Sunstone 0.722ct Loose Sale price¥14,800

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.