NEWS
[Lottery sale: Deadline: 10am on Tuesday, March 3rd]
![[Lottery Sale_0225_10] 0.108ct White Diamond Loose (FANCY WHITE, I-1)](http://store.karatz.jp/cdn/shop/files/P2197574_6ff848d7-2b33-4133-bb45-b9e90f1d9990.jpg?v=1772147193&width=2873)
[Lottery Sale_0225_10] 0.108ct White Diamond Loose (FANCY WHITE, I-1)
Sale price¥55,800
![[Lottery Sale_0225_09] Gray Diamond 0.079ct Loose (FANCY DARK GRAY, I-1)](http://store.karatz.jp/cdn/shop/files/P2197450_d2c475f9-5c59-457a-b950-1fda1c7e9d98.jpg?v=1772092829&width=2568)
[Lottery Sale_0225_09] Gray Diamond 0.079ct Loose (FANCY DARK GRAY, I-1)
Sale price¥29,800
![[Lottery Sale_0225_03] Green Diamond 0.084ct Loose (FANCY GRAY GREEN, I-1)](http://store.karatz.jp/cdn/shop/files/P2197494_ac7c6dc6-046e-471e-bcb0-0a40c954fccc.jpg?v=1772092867&width=2805)
![[Lottery Sale_0225_04] Gray Diamond 0.107ct Loose (FANCY GRAY, I-1)](http://store.karatz.jp/cdn/shop/files/P2197534_56c9d738-f232-47c6-85a8-84c35e863c9d.jpg?v=1772092914&width=2728)
[Lottery Sale_0225_04] Gray Diamond 0.107ct Loose (FANCY GRAY, I-1)
Sale price¥39,800
[Lottery Sale_0225_06] Gray Diamond 0.141ct Loose (FANCY GRAY, I-1)
Sale price¥49,800
[Lottery Sale_0225_07] Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥58,800
New arrivals and updates on 2/27 (Fri)
【3/1 22時販売】《限定15石》通常39,800円のFANCYカラーのピンクダイヤ含むピンクダイヤモンド1石ルース《複数購入割引有》
Sale price¥3,980
![[Available at 10 PM on March 1st] Limited to 21 stones! Dominican Republic Conch Pearl & Shell Gacha Loose Stone (including one with a flame pattern) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a484a33d-75a6-40c5-a0ba-63bf757c7cca.png?v=1772195139&width=2250)
![[Available at 10 PM on March 1st] Limited Edition 10 Diamonds! 💎 Includes a 3.2mm Chameleon Diamond (VS-SI equivalent), normally priced at ¥35,800. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_58b68a06-8c7a-4bc7-b9ac-ea609feecc77.png?v=1772176632&width=2250)
![[Available at 10 PM on 2/28] Limited to 10 gems! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)](http://store.karatz.jp/cdn/shop/files/8b1419e88ec5f1943032f6d467a8655b_b5aae877-2260-4d90-b251-a5b75018c898.png?v=1771550459&width=1080)
![[Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010205_fcbc6430-2476-4eb1-973e-e93281536727.jpg?v=1772175779&width=4000)
![[Available at 10 PM on February 28th] Limited to 2 stones: One loose Greenland ruby (2.2mm, top color, certificate included) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2250003.jpg?v=1772194045&width=4000)
![[Available at 10 PM on February 28th] Limited to 2 stones: Greenland pink sapphire loose stone (5.0mm, heart shape, certificate included) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2250055_92fb3ceb-00e7-4004-9ea0-a69f7eb24dde.jpg?v=1772194584&width=3225)
[12561510] Synthetic rutile 2.462ct loose stone
Sale price¥25,800
[12561999] Mexican Egg-in Opal 2.125ct Loose
Sale price¥15,800
[12562002] Mexican egg-in opal 3.646ct loose stone
Sale price¥25,800
[12562000] Mexican Egg-in Opal 4.879ct Loose
Sale price¥29,800
[12561998] Mexican Fire Opal 2.499ct Loose
Sale price¥18,800
![[12561994] Brazilian Blue Tourmaline in Quartz 9.251ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2255574_d205708a-79bf-404d-a1f8-7b0b57436d26.jpg?v=1772241906&width=4000)
[12561994] Brazilian Blue Tourmaline in Quartz 9.251ct Loose Stone
Sale price¥39,800
![[12561992] Brazilian Blue Tourmaline in Quartz 3.379ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2255462_470917fa-f79b-49f8-ad57-f8fa507599f7.jpg?v=1772241907&width=3306)
[12561992] Brazilian Blue Tourmaline in Quartz 3.379ct Loose Stone
Sale price¥15,800
[12561991] Brazilian Black Garden Quartz 5.722ct Loose Stone
Sale price¥15,800
![[12561522] Cambodian Blue Zircon (Ratanakiri Blue) 0.354ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2198693_8e06bff2-6311-41e1-bf65-fab025df404e.jpg?v=1772242638&width=2950)
![[Published on 12561221] Synthetic Alexandrite 0.338ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_cd9702c1-cd4b-4df5-919e-4d2662f0fea6.png?v=1772283805&width=2250)
[Published on 12561221] Synthetic Alexandrite 0.338ct Loose Stone
Sale price¥12,800
![[12561281] Brazilian Rainbow Scapolite 0.435ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2198377.jpg?v=1772283918&width=4000)
[12561281] Brazilian Rainbow Scapolite 0.435ct Loose Stone
Sale price¥12,800
![[12561261] Australian Prehnite 2.666ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2198301.jpg?v=1772284026&width=4000)
[12561261] Australian Prehnite 2.666ct Loose Stone
Sale price¥12,800
![[12561312] Synthetic rutile 0.329ct loose stone](http://store.karatz.jp/cdn/shop/files/P2198417_542ef1bb-13ef-4f18-820d-1801391a2390.jpg?v=1772284271&width=2846)
[12561312] Synthetic rutile 0.329ct loose stone
Sale price¥9,800
[12561176] Mexican Opal (Faceted) 0.644ct Loose
Sale price¥18,800
[On Sale 2/28 10pm] Mexican Fire Opal 6.742ct Loose
Sale price¥98,000
[On Sale 2/28 10pm] Brazilian Limonite in Blue Topaz 9.314ct Loose Stone
Sale price¥25,800
[On Sale 2/28 10pm] Brazilian Limonite in Blue Topaz 6.701ct Loose Stone
Sale price¥19,800
[On Sale at 10 PM on 2/28] Congo Hemimorphite 4.210ct Loose Stone
Sale price¥25,800
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥6,980
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
Colombian trapiche emerald (reverse trapiche) 0.131ct rough stone
Sale price¥12,800
[12548254 published] Padparadscha sapphire 0.474ct loose
Sale price¥49,800
List of new arrivals
Madeira citrine 0.170ct loose
Sale price¥5,980
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Montana Sapphire 0.449ct loose (bicolor sapphire)
Sale price¥14,800
Australian Rainbow Lattice Sunstone 1.013ct Loose
Sale price¥3,980
Indian alexandrite cat's eye 0.679ct loose
Sale price¥8,800
Indian alexandrite cat's eye 0.422ct loose
Sale price¥9,800
Green tourmaline 1.687ct loose
Sale price¥12,800
Pink tourmaline 0.669ct loose
Sale price¥8,800
Green tourmaline 2.144ct loose
Sale price¥24,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Pt900 benitoite 0.135ct/diamond ring
Sale price¥128,000
Strawberry quartz from Kazakhstan 0.977ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.803ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 1.613ct loose
Sale price¥9,800
Strawberry quartz from Kazakhstan 0.773ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 1.031ct loose
Sale price¥7,980
Strawberry quartz from Kazakhstan 0.815ct loose
Sale price¥5,980
Copper rutilated quartz 1.135ct loose
Sale price¥5,980
Copper rutilated quartz 1.165ct loose
Sale price¥5,980
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.089ct loose
Sale price¥9,800
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
[Dandelion cut] Synthetic rutile 7.5mm/2.630ct loose
Sale price¥39,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥12,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥7,980
Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)
Sale price¥12,800
Bicolor tourmaline 0.974ct loose
Sale price¥9,800
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Colombian trapiche emerald (reverse trapiche) 3.6mm/0.168ct rough stone
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.135ct rough stone
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.131ct rough stone
Sale price¥12,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
《Products eligible for multiple purchase discount》
![[Available at 10 PM on February 23rd] Limited Edition of 5 Synthetic Alexandrite Gacha (Princess Cut, 3.5-4.5mm) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_6faadd16-4c1f-45ee-b03d-76a3ad653367.png?v=1771812514&width=2250)
![[Available at 10 PM on February 22nd] [Limited to 6 stones] Brazilian Dendritic Quartz (New in Tucson, Average Weight 2.5ct) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/2_2234e2f9-8a38-45bf-b31c-4a7e59ad39ee.png?v=1771634563&width=1080)
![[Available at 10 PM on February 23rd] Limited to 12 stones. Newly arrived in Tucson: High-quality Brazilian Dumortierite in Quartz (faceted cut). Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_016e0e27-9ca2-4544-af8a-80e61801f764.png?v=1771777590&width=2250)
![[Available at 10 PM on February 15th] [Limited to 150 stones - New in Tucson] Brazilian Alexandrite Loose Stone (Top Quality, Melee Size, Hemachita Mine) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_9957227d-5978-440c-88ac-8298fff5fbe0.png?v=1771047047&width=2250)
![[Available at 10 PM on February 22nd] Limited to 10 Opals - Australian Opal Lottery with Certificate of Authenticity (including Australian Black Opal) (Plus 1 Mexican Fire Opal) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/2ce9f9727de9532a55237668af9f2b6d_e306074e-7564-4e5e-bc94-74959ab2a91e.png?v=1770790310&width=2000)
![[Available at 10 PM on February 15th] Limited to 18 stones: Sri Lankan rhodolite garnet, 3mm, loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010204_1c0112ea-baaa-47f9-987d-8f580ebd2507.jpg?v=1771039619&width=4000)
![[Available at 10 PM on February 15th] Limited to 13 stones: Sri Lankan rhodolite garnet, 3.5mm, single loose stone (Sanjay cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010397_51e5b54c-425e-4470-bae3-181142eb8953.jpg?v=1759451393&width=4000)
![[Available at 10 PM on 2/21] Limited to 9 stones. Includes Koshu Kiriko plus three citrine gacha, normally priced at 29,800 yen. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_f751d37d-74a9-49f1-bd56-d8e34d4510e9.png?v=1771038872&width=2250)
![[Available at 10 PM on February 15th] Limited Quantity Tucson Fun Gacha 💎 Guaranteed 1 Stone from 8 Types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudierite, etc.) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/2026-02-1318.59.04.png?v=1770976872&width=1281)
![[Available at 10 PM on February 22nd] Limited to 13 stones: Mexican Opal (Cabochon Cut) Gacha [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2040462.jpg?v=1770978988&width=4000)
![[Available at 10 PM on February 11th] [Limited to 14 stones] Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2040396.jpg?v=1770624269&width=4000)
![[Available at 10 PM on February 13th] Limited to 6 sets: Colombian Reverse Trapiche Emerald & Brazilian Sugarloaf Cut Emerald Set (Multiple purchase discounts available)](http://store.karatz.jp/cdn/shop/files/collage_9197464c-d272-428e-a69d-71268a1b73cf.png?v=1770868124&width=2250)
![[Available at 10 PM on February 11th] Limited to 6 stones: Pezzottaite Gacha from Madagascar (2.2-2.5mm, round cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2040297.jpg?v=1770622784&width=4000)
![[On sale at 10 PM on February 14th] Limited to 10 stones. Beautiful pink Brazilian morganite loose stone. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/20260130_P1280168_408c7e67-a310-403d-ad15-8d446848f508.jpg?v=1771038495&width=4000)
![[Available at 10 PM on February 11th] Limited Edition of 16 Blue Stones: Bicolor Benitoite, Brazilian Paraiba Tourmaline, Santa Maria Aquamarine, and More. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_f302a2d9-a4c4-45a3-8756-cdacceb9d0a2.png?v=1770270137&width=2250)
![[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_89b7e3fa-b766-4144-821d-3cb2934c389d.png?v=1769209815&width=2250)
![[Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010004_6f05bf8c-a236-4821-a27e-9bf482c18d4b.jpg?v=1769172009&width=3291)
![[Available at 10 PM on January 30th] Limited to 6 Silky Pink Sapphires from Vietnam (Sanjay Cut, Round, 3.0-3.3mm) Gacha [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_270805e5-06fd-4d44-b9b8-29940a8a5fbd.png?v=1769567078&width=2250)
![Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PC190060_c4f87b12-3b41-4e2d-a32f-2338f4edfd21.jpg?v=1766651520&width=4000)
Search by category
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.