New & Updated: 6/26 (Fri)
![[Restock on June 27th at 10 PM] Authentic Gemstone Encyclopedia 3D Stickers Vol. 1: The Big Five Gems](http://store.karatz.jp/cdn/shop/files/IMG_3658.jpg?v=1781061036&width=3384)
![[On Sale June 28th, 10 PM] Brazilian Paraiba Tourmaline Gacha with Sorting Report (CuO: 2.1%, MnO: 2.2%) - Limited to 18 Stones! (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage_6bc80329-36ed-4bc7-bbff-5c77e00a25bd.png?v=1782393589&width=3000)
![[Sale from 10 PM on June 28] [Limited to 15 Stones] Synthetic Gem Gacha 💎 Includes a 1.02ct/D/VS1/3EX certified lab-grown diamond, normally priced at 50,000 yen (with a bonus synthetic cobalt spinel) [Bulk purchase discount available]](http://store.karatz.jp/cdn/shop/files/31_4a872569-3259-4461-a07e-ea5bdbf13e87.png?v=1782356028&width=1000)
![[On Sale June 28th at 10 PM] Limited to 10 Stones: Brazilian Mint-Color Montebrasite (Princess Cut approx. 3.5mm) - 1 Loose Stone (Volume Discount Available)](http://store.karatz.jp/cdn/shop/files/P1010148_b8369c04-8eff-4993-89be-b2e98144c98d.jpg?v=1782382564&width=4000)
![[Sales start 10 PM on 6/26] Limited to 30 sets: 1 in 10 is a pair of 2 stones - Zambian emerald loose stone (approx. 6x4mm, emerald cut) with deep color. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/collage_aeb10a54-ec73-4ab3-9ab2-40cc227a8bcc.png?v=1782347727&width=3000)
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/2026-06-2516.42.36.png?v=1782373473&width=1280)
![[On Sale June 27, 10 PM JST] "Limited to 10 Stones" Rough Stone Gacha including Paraiba Tourmaline (CuO: 1.7%+ content) and Benitoite (with a bonus Oregon Sunstone) "Multiple Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/52_a5256d7b-e60a-4b76-822d-f33111c60340.png?v=1782353139&width=2268)
![[Sale on June 27th at 10 PM] Limited to 2 Stones: Myanmar Red Spinel (Pear Shape approx. 4x3mm) - Multi-Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/P1010276_6883d9c0-c222-4c55-a751-78659b5850e8.jpg?v=1782361559&width=4000)
![[Sale at 10 PM on 6/27] Limited to 9 Stones: Myanmar Red Spinel (Round Cut, approx. 3.5mm) - Multiple Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/P1010236_739fda47-1cb1-405b-b6ff-e487f464741c.jpg?v=1782361127&width=4000)
![[On sale June 27th at 10 PM] Limited to 10 Stones: Sri Lankan Chrysoberyl (Cut by Mr. Sanje) Gacha (Includes Parrot Color, Canary Yellow) [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/P5150155.jpg?v=1779061883&width=4000)
[Listed on 12563409] Afghani Green Hauynite 0.142ct Loose
Sale price¥39,800
[Posted as 12563408] Green Hauyne from Afghanistan 0.135ct Loose
Sale price¥35,800
[Listing No. 12563411] Blue Sapphire 1.134ct Loose Gemstone
Sale price¥45,800
[Posted 12563373] Zimbabwean Euclase 0.054ct Loose Gemstone
Sale price¥14,800
[Posted 12562267] Lazulite (blue spar) from Brazil, 0.022ct Loose
Sale price¥18,800
【Posted on 12562266】Brazilian Lazulite (blue spar) 0.067ct Loose
Sale price¥49,800
![[Published 22602658] [Karafuri] Pt950 Alexandrite 0.08ct Ring](http://store.karatz.jp/cdn/shop/files/collage_379f7d3b-c7c1-48ee-8b52-b21f80d183e6.png?v=1782525610&width=3000)
[Published 22602658] [Karafuri] Pt950 Alexandrite 0.08ct Ring
Sale price¥98,000
![[Item ID: 22602630] [Karafuri] Pt900 Blue Sapphire 0.43ct Ring](http://store.karatz.jp/cdn/shop/files/P6053931_a1e2eb66-99c5-48e7-85aa-db2a023d910e.jpg?v=1782541520&width=4000)
[Item ID: 22602630] [Karafuri] Pt900 Blue Sapphire 0.43ct Ring
Sale price¥98,000
![[Published on 22602611] [Carafur] K18WG Ruby 0.94ct Pendant Top (Necklace Top)](http://store.karatz.jp/cdn/shop/files/P6042437_b69a1858-cadd-4153-91fb-4b3ff88900ed.jpg?v=1782541806&width=4000)
![[Listed on 22602645] [Colorful] Pt900 Ruby 0.6ct Ring](http://store.karatz.jp/cdn/shop/files/P6170148_39fa698d-f13b-4cc8-aa49-4b49971a7597.jpg?v=1782544881&width=4000)
[Listed on 22602645] [Colorful] Pt900 Ruby 0.6ct Ring
Sale price¥98,000
![[Posted on 22602644] [Calafri] K18 Synthetic Sapphire Ring](http://store.karatz.jp/cdn/shop/files/P6170097_e5d916cc-b72e-4189-8b7a-8fa60882d5a6.jpg?v=1782543433&width=4000)
[Posted on 22602644] [Calafri] K18 Synthetic Sapphire Ring
Sale price¥45,800
![[Listed as 22602642][Colorful] Pt950 Moonstone Cat's Eye 3ct Ring](http://store.karatz.jp/cdn/shop/files/P6170064_5f7202f1-0b82-4a6d-8f65-00a94dfc1119.jpg?v=1782542104&width=3067)
[Listed as 22602642][Colorful] Pt950 Moonstone Cat's Eye 3ct Ring
Sale price¥79,800
![[Published on 22602643] [CALAFULI] Pt950 Moonstone Cat's Eye 1.5ct Pendant Top](http://store.karatz.jp/cdn/shop/files/P6225986_a59d46a3-60d1-4872-b35e-793253f8bd95.jpg?v=1782543023&width=2782)
Brazilian Dendritic Agate 2.788ct Loose Stone
Sale price¥6,980
Brazilian Dendritic Agate 1.679ct Loose Stone
Sale price¥5,980
Synthetic Alexandrite 0.471ct loose stone
Sale price¥14,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Brazilian Euclase 0.695ct Loose Stone
Sale price¥18,800
List of new arrivals
Brazilian Flower Rutile in Quartz 5.122ct Loose Stone
Sale price¥7,980
Brazilian Dendritic Agate 3.575ct Loose Stone
Sale price¥8,800
Tanzanian Lavender Tanzanite 0.558ct Loose Stone
Sale price¥12,800
Tanzanian bicolor tanzanite 0.573ct loose stone
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.577ct Loose Stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut)
Sale price¥8,800
Montana Agate 9.528ct Loose
Sale price¥8,800
Oregon Sunstone from the United States 0.736ct loose stone
Sale price¥8,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥19,800
Sri Lankan Chrysoberyl Cat's Eye 1.514ct Loose Stone
Sale price¥5,980
Sri Lankan Chrysoberyl Cat's Eye 1.074ct Loose Stone
Sale price¥4,980
Spanish Sphalerite 7.0mm/1.753ct loose stone
Sale price¥35,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Synthetic Moissanite 5.8mm/0.678ct Loose Stone
Sale price¥8,800
Synthetic Moissanite 5.8mm/0.682ct Loose Stone
Sale price¥8,800
Brazilian Green Tourmaline 0.825ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.376ct Loose Stone
Sale price¥7,980
Brazilian Green Tourmaline 0.332ct Loose Stone
Sale price¥7,980
Tanzania Bicolor Zoisite 4.7mm/0.486ct Loose Stone
Sale price¥9,800
Tanzanite from Tanzania 0.245ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 0.295ct Loose Stone
Sale price¥7,980
Australian black opal 3.242ct loose stone
Sale price¥59,800
Synthetic Moissanite 0.634ct loose stone
Sale price¥9,800
Almandine Garnet 1.471ct Loose Stone
Sale price¥14,800
Almandine Garnet 1.388ct Loose Stone
Sale price¥11,800
Almandine Garnet 1.988ct Loose Stone
Sale price¥16,800
Almandine Garnet 1.485ct Loose Stone
Sale price¥15,800
Almandine Garnet 1.058ct Loose Stone
Sale price¥12,800
Blue sapphire 0.287ct loose
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%)
Sale price¥42,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Tanzanian Rhodolite Garnet 0.448ct Loose Stone
Sale price¥6,980
Tanzanian Rhodolite Garnet 0.810ct Loose Stone
Sale price¥9,800
Tanzanian Kornerupine Cat's Eye 1.608ct Loose Stone
Sale price¥6,980
American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose
Sale price¥8,800
Goshenite 5.7mm/0.572ct loose stone
Sale price¥5,980
Oregon Sunstone 0.713ct loose
Sale price¥4,980
《Products eligible for multiple purchase discount》
![[Available June 20th at 10 PM] Limited to 21 pieces - Kochi Prefecture Blood Coral Branch (rough) 1 stone (March birthstone, coral, average 4.7ct) - Multiple purchase discount available](http://store.karatz.jp/cdn/shop/files/P1010050_7487736d-6e14-4fc3-912a-6525c9511b14.jpg?v=1781156293&width=4000)
![[Sale on June 19th at 10 PM] "Limited to 20 pieces" Kochi Prefecture Blood Coral Branch (raw, unworked) 1 piece (March birthstone, coral, average 5.8ct) "Discounts for multiple purchases available"](http://store.karatz.jp/cdn/shop/files/P1010014_cf38e237-8d3d-4189-8783-0692fbf04afe.jpg?v=1781156196&width=4000)
![[On sale June 21st at 10 PM] [Limited to 1 set] Amethyst & Citrine Symmetrical Pair Cut Set 66.58ct Loose Gemstones [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/collage_f463bd1c-1808-4730-abdd-52119c463d1e.png?v=1781607244&width=3000)
![[On sale June 20 at 10 PM] Limited to 5 Stones: Cambodian Ratanakiri Blue Zircon Gacha (Avg. 0.73ct) (Bulk Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/49_be81e5a4-6f60-4395-8e52-9ddaa40bd1ec.png?v=1781572307&width=1890)
![[On sale June 19th at 10 PM] Limited 1 Set: Two Tanzania Illusion Sunstones Cut by NOBU (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/P1010588_3560c6c7-ea0f-4ccf-9ba9-8569eb2fe51d.jpg?v=1781571224&width=4000)
![[Sales begin 6/20 10 PM] Limited to 12 Stones: Madagascar Andesine & Labradorite (Rainbow Moonstone & Blue Moonstone) 2-Stone Set (Average 0.60ct) - Multiple Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/collage_702c53e9-00d8-4097-9b45-09aefac43fc6.png?v=1781597688&width=3000)
![[On sale June 19th at 10 PM] "Limited 7 Stones" Anthill Garnet Single Loose Stone (Oval Cut, approx. 4x3mm) "Multiple Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/S__242548738.jpg?v=1781589437&width=1477)
![[Sales begin 10 PM JST on 6/21] Dragon Garnet Single Loose Stone (Round Cut, 5mm) - Limited to 5 Stones - Multi-Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/collage_43f16cd2-430d-4c71-9d89-063a4c1b7c62.png?v=1781605522&width=3000)
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_fbc9c12a-d5e0-4c94-9d20-bbfb36fad717.png?v=1781513378&width=3000)
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_532a76cb-8ad0-4f4f-a177-0547aa0bef7a.png?v=1781512599&width=3000)
![[On sale June 21st at 10 PM] Ruby Gacha (with synthetic ruby as a bonus) including two pigeon blood rubies with appraisal certificates (limited to 15 stones) - Multiple purchase discount available](http://store.karatz.jp/cdn/shop/files/46_64e5d430-259e-4ae1-9011-7948956733ef.png?v=1781501306&width=1890)
![[On sale at 10 PM on 6/21] Sapphire Gacha💎 with a chance to win one of 12 limited cornflower blue sapphires with AIGS certification. Comes with a trillion-cut sapphire bonus. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/45_75d03d61-7075-4fab-8847-80c7faf27910.png?v=1781499622&width=1890)
![[On sale May 24th at 10 PM] "Limited to 12 Stones" Blue Gemstone Gacha 💎 Brazil Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) and Zimbabwe Euclase, normally priced at ¥35,800, and more! (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/P1010002_2b7e0b49-712e-480c-b01b-243e8d925a3e.jpg?v=1781241884&width=4000)
![[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/collage_ab98be24-a2fb-436e-abe4-9e7713aae512.png?v=1781241148&width=3000)
![[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/39.png?v=1780478004&width=2268)
![[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]](http://store.karatz.jp/cdn/shop/files/P1010258_f7dc9e7a-ba96-4f16-b0cc-3597b42b15e9.jpg?v=1780475574&width=4000)
![[On Sale June 7th, 10 PM] Limited to 15 Stones: Afghan Pink Diaspore Single Stone Loose Gemstone (Avg. 0.3ct) - Multiple Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/P1010212_0cf98850-1eef-4062-9357-fd4c24ff6ff7.jpg?v=1780475062&width=4000)
![[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/collage_3cb44437-e951-4438-8b17-74206568a429.png?v=1780733612&width=4000)
![[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/P1010178_2ed6b7e4-2260-4141-b297-92d488154d96.jpg?v=1780474262&width=4000)
Bungo and Alchemist
[Published 22602658] [Karafuri] Pt950 Alexandrite 0.08ct Ring
Sale price¥98,000
[Available June 18th at 10 PM] [Colorful] K18WG Diamond 1.03ct Pendant Top
Sale price¥128,000
[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace)
Sale price¥49,800
【Calafuri】K18 Quartzite Pendant Top (Necklace Top)
Sale price¥49,800
[Colorful] Pt900 Diamond 0.65ct Pendant Top
Sale price¥89,800
![[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)
[Sales begin May 18 at 10 PM JST] [Colorflee] Pt900 Diamond 0.50ct Ring
Sale price¥79,800
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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 publishes "Gemstone Encyclopedia"
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.