Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Mozambique Pink Sapphire 0.276ct Loose (Hot Pink Sapphire)
Sale price¥9,800
[Karafuri] K18WG Diamond 0.40ct Pendant (Necklace)
Sale price¥79,800
[Colorful] Pt900 Diamond 0.65ct Pendant Top
Sale price¥89,800
Australian black opal 1.393ct loose
Sale price¥48,800
Sri Lankan Bi-Color Sapphire 0.434ct Loose Stone
Sale price¥12,800
Mexican Fire Opal (Faceted) 1.046ct Loose Gemstone
Sale price¥29,800
Internally Flawless Diamond 4.3mm/0.300ct Loose (F, IF, 3Excellent) GIA
Sale price¥98,000
Australian Opal with Matrix (14.840ct Loose Stone) with Certificate
Sale price¥69,800
[Colorfyl] K18WG Diamond 0.126ct Pendant (Necklace)
Sale price¥49,800
[Calafull] K18 Diamond 0.3ct Pendant Top (Necklace Top)
Sale price¥39,800
【Calafuri】K18WG Diamond 0.21ct Pendant Top (Necklace)
Sale price¥49,800
0.274 ct Loose Colombian Bi-Color Emerald
Sale price¥98,000
8.020 ct Boulder Opal Loose Stone from Australia with Certificate
Sale price¥69,800
Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)
Sale price¥29,800
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2)
Sale price¥15,800
Diamond 3.7mm/0.318ct Loose (F, SI-1, Princess Cut)
Sale price¥49,800
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Loose diamond 3.5mm/0.167ct (G, VS-1, VeryGood)
Sale price¥29,800
Diamond 3.8mm/0.197ct Loose (E, VVS-1, VeryGood)
Sale price¥39,800
Diamond 3.5mm/0.167ct Loose (D, VVS-2, VeryGood)
Sale price¥37,800
Diamond 3.8mm/0.211ct Loose Stone (E, VS-2, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.216ct Loose (G, VS-1, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.207ct Loose (F, VS-1, Excellent)
Sale price¥35,800
[COLORFUL] Pt900 Opal 2.61ct, Diamond 0.858ct Ring
Sale price¥168,000
【Calafuri】Pt900 Ice Blue Diamond (Treated) 1.00ct Ring
Sale price¥298,000
[Color-furi] K18 Fire Opal Ring with Certificate of Authenticity
Sale price¥49,800
[Calafuri] K18WG Yellow Sapphire 0.05ct Pendant Top (Necklace Top)
Sale price¥79,800
Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal
Sale price¥24,800
Mexican Cantera Opal 5.811 ct Loose Stone with Certificate
Sale price¥29,800
Ruby 0.528ct Loose Stone with Gem Identification Report
Sale price¥28,800
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.
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.