[Calafuri] K18WG Yellow Sapphire 0.05ct Pendant Top (Necklace Top)
Sale price¥79,800
![[Sale May 3rd, 10 PM] [Colorful] Pt900 Diamond 0.5ct Ring with Appraisal Report](http://store.karatz.jp/cdn/shop/files/collage_df3cb11b-0df3-4814-8f71-b19810da427c.png?v=1777681819&width=2250)
![[Sales Start: May 3rd, 10 PM JST] [Colorflee] Pt900 Lab-Grown Ruby 1.61ct / Diamond 0.25ct Ring (Central Gem Lab Certified)](http://store.karatz.jp/cdn/shop/files/P4280341_b8b31c08-1f05-484d-96e2-43692e4a6934.jpg?v=1777643817&width=2444)
[On sale 5/27 10 PM] Diamond 3.8mm/0.197ct Loose (E, VVS-1, VeryGood)
Sale price¥39,800
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Diamond 3.7mm/0.318ct Loose (F, SI-1, Princess Cut)
Sale price¥49,800
Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2)
Sale price¥15,800
![[On sale May 5 at 10 PM] Untreated Sri Lankan Sapphire (Glass Body/Sapphire Crystal) 142.434 ct Rough with Certification](http://store.karatz.jp/cdn/shop/files/P1305718_0f25521f-68a8-45da-9c82-fe4b7c3ff2d0.jpg?v=1777594543&width=4000)
![[On Sale May 2 at 10 PM] Ruby 0.286ct Loose Gemstone with Identification Report](http://store.karatz.jp/cdn/shop/files/P2197889_4020ad31-fba6-4c2b-94c0-ba3f34311857.jpg?v=1774485888&width=2690)
![[On sale May 3rd at 10 PM] Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)](http://store.karatz.jp/cdn/shop/files/32501866_02.jpg?v=1775722654&width=1200)
![[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone](http://store.karatz.jp/cdn/shop/files/P9183956_25a7a6b1-a220-4cf8-a400-be021fcbc2aa.jpg?v=1777685820&width=4000)
[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone
Sale price¥98,000
![[Sales start 10:00 PM on May 4th] Colombian non-oil emerald (NONE) 0.060ct loose GIA](http://store.karatz.jp/cdn/shop/files/PC220238_2d3f6e8d-8516-4c46-bba2-f287e5941b46.jpg?v=1777686131&width=3224)
[Sales begin May 18 at 10 PM JST] [Colorflee] Pt900 Diamond 0.50ct Ring
Sale price¥79,800
![[On sale May 14 at 10 PM] Colorful WISH UPON A STAR® 3.5mm/0.166ct/F/VS1 Diamond with Certificate](http://store.karatz.jp/cdn/shop/files/collage_602f7523-6cd3-47f0-8a9e-92663bee40ad.png?v=1778577187&width=4000)
[On Sale May 22 at 10 PM JST] Australian Black Opal 1.393ct Loose Stone
Sale price¥48,800
[On sale 5/22 at 10 PM] Australian Black Opal 0.325ct Loose Stone
Sale price¥9,800
[Sale on May 24th at 10 PM JST] Australian Black Opal 0.216ct Loose
Sale price¥11,000
[Colorful] Pt900 Diamond 0.65ct Pendant Top
Sale price¥89,800
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.