![[On Sale 10/5 at 10 PM] [Limited to 11 Stones] Synthetic Moissanite Gacha 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite, Loose Stones Included [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_651faf70-f61a-4363-8c57-36a5e217dbd0.png?v=1759535374&width=2250)
![[On Sale 10/4 at 10 PM] Limited to 3 Stones: Synthetic Black Moissanite Loose Stone (2.5mm, Round Cut) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010072_20121cad-8aa9-44eb-95d5-6ff7d148f53e.jpg?v=1759534849&width=3350)
![[On sale from 10/5 at 10 PM] Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/15_dc816088-689d-48f9-a277-773d85ed082c.png?v=1759454434&width=1500)
![[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/14_15be1edf-3bee-4b6c-a802-65c04eb4d4a9.png?v=1759454008&width=1500)
![[On Sale 10/10 at 10 PM] [Limited to 8 stones] Mexican Hyalite Opal Loose Stone (Large 4ct, Fluorescent in sunlight) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_02d2c005-b0b0-4bdb-b567-6788a4b464ec.png?v=1759967028&width=2250)
![[Available at 10 PM on October 5th] Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/11_68a1bbaf-11da-453a-b687-bb5d166e5fdb.png?v=1759451951&width=4000)
UV type mint garnet 0.521ct loose
Sale price¥3,980
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Brazilian rainbow scapolite 6mm/0.516ct loose
Sale price¥2,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥3,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.008ct loose
Sale price¥4,980
Australian boulder opal 0.874ct loose
Sale price¥3,980
Australian boulder opal 1.156ct loose
Sale price¥3,980
![[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA033888.jpg?v=1759636699&width=4000)
[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone
Sale price¥4,980
![[12535099] Tanzanian Spessartine Garnet 0.209ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA036498.jpg?v=1760140969&width=4000)
[12535099] Tanzanian Spessartine Garnet 0.209ct Loose Stone
Sale price¥4,980
![[On sale from 10/4 at 10 PM] [Limited to 17 stones] Tanzanian Bicolor Sapphire Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010326.jpg?v=1759127192&width=4000)
![[On sale at 10 PM on September 29th] [Limited to 14 stones] Brazilian Dendritic Quartz Loose Stone (Average 7 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010182_dba92f7a-563c-4cb3-8248-3f75fd0cdc47.jpg?v=1759117806&width=4000)
Brazilian lepidocrocite in quartz 2.223ct loose
Sale price¥2,980
Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut)
Sale price¥3,980
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Montebrasite from Madagascar 0.328ct loose
Sale price¥3,980
![[Available at 10 PM on September 20th] Limited to 20 stones: Russian Demantoid Garnet (Round Cut, 2.0mm) Loose Stone [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010340_32f4e447-1f0f-4beb-865b-16a913ef2777.jpg?v=1758173969&width=4000)
![[Available at 10 PM on September 21st] Limited to 20 stones. Includes 2 Koshu Kiriko Fire Opals. 1 loose fire opal gacha. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/7_cf8144ee-7ac5-4965-b93c-f9f618bb4cbf.png?v=1758172271&width=1500)
![[Available at 10 PM on September 28th] [Limited to 16 stones] Loose tourmaline gacha featuring special cuts including Sakura in cut (from Congo) and Dandelion cut (from Brazil) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/6_ec410839-be94-4f88-8ee8-2aecc42a03a1.png?v=1758170824&width=1500)
![[On sale at 10 PM on September 21st] Limited to 14 stones: Beryllium-heated Sapphire (3.5mm, KEN Cut) - Single Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010016_abbaadd4-abc6-4f95-9926-76bbf33dc3a4.jpg?v=1758169059&width=4000)
Brazilian Andalusite 0.557ct loose
Sale price¥2,980
Brazilian Andalusite 0.634ct loose
Sale price¥3,980
Brazilian Andalusite 0.608ct loose
Sale price¥3,980
Tanzanian Clinozoisite 0.950ct Loose Stone (Phantom Cut)
Sale price¥3,980
Tanzanian Clinozoisite 0.710ct Loose Stone (Phantom Cut)
Sale price¥3,980
Tanzanian Clinozoisite 0.560ct Loose Stone (Phantom Cut)
Sale price¥3,980
American fluorite 0.842ct loose stone
Sale price¥2,980
Purple spinel 0.210ct loose
Sale price¥3,980
Lavender spinel 0.160ct loose
Sale price¥3,980
![[Available at 10 PM on September 15th] Limited to 11 stones: One loose silky pink sapphire from Vietnam (2.0-2.5mm, heavy inclusions) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010309_f939fd9d-57ed-4420-a19a-23e3a82d54b6.jpg?v=1757670663&width=4000)
Pink tourmaline 0.391ct loose
Sale price¥4,980
![[Available at 10 PM on September 7th] [Limited to 10 stones] Koshu Precious Stone Kiriko "Broom" plusthree 45ct Dendritic Quartz Gacha (Includes 1 Copper Rutile in Quartz) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_fe736b42-aa9a-43cd-a50b-5c83289024ea.png?v=1757203501&width=2000)
![[Sales start on Thursday, September 25th at 10:00 PM] TV anime "Magic Knight Rayearth" x KARATZ collaboration hard card set](http://store.karatz.jp/cdn/shop/files/0905_79df0fad-55ac-4d35-a45a-38647bc4b128.jpg?v=1757210543&width=4500)
![[Sales start at 10:00 PM on Thursday, September 25th] TV anime "Magic Knight Rayearth" x KARATZ collaboration acrylic key chain](http://store.karatz.jp/cdn/shop/files/0905_b501eb64-5c5f-43f7-8176-e68ebf28fad6.jpg?v=1757210585&width=4500)
![[Sales start at 22:00 on Thursday, September 25th] TV anime "Magic Knight Rayearth" x KARATZ collaboration acrylic stand](http://store.karatz.jp/cdn/shop/files/0905_91002ffa-dcac-40ce-b7ee-7480038356d8.jpg?v=1757210600&width=4500)
![[Sales start on Thursday, September 25th at 10:00 PM] TV anime "Magic Knight Rayearth" x KARATZ collaboration glitter can badges](http://store.karatz.jp/cdn/shop/files/0905_0500db60-f3e3-4e76-9388-0e019e96c519.jpg?v=1757210885&width=4500)
Fire Opal 2 Stone Pair 4mm/0.336ct Loose
Sale price¥3,980
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.