[Ueno Marui 5F] Pop-up store announcement [July 24th (Thu) - July 29th (Tue)]
In July, we will be holding a pop-up store in Ueno, Tokyo for the first time in about three years!
In addition to familiar gemstones such as the birthstones of each month, the world's top five gemstones, and Paraiba tourmaline,
This time, we will be bringing with us a large selection of gemstones that KARATZ has collected from all over the world and proudly recommends, including beautifully cut gemstones by skilled cutters from both Japan and abroad, including Shimizu Precious Stones, and rare stones that are rarely seen.
We also have new jewelry♪
Being able to compare products and choose while looking at them in person is a unique pleasure only available at a pop-up store!
Please feel free to pick up and take a look at any gemstones that interest you.
This time, the exhibition will be held on the 6th. Depending on the day of the week and the time of day, you can take your time to look around.
We have some special offers for you to visit us multiple times during the event, so please come and visit us!
Photo: The event was held in Shinjuku in June 2013
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～Ueno Marui Pop-up Store～
■Period: July 24th (Thursday) to 29th (Tuesday), 2025
■Store: Ueno Marui 5F ■Products: Gems, rare stones, jewelry, custom-made consultations ■Business hours: 11:00-20:00 *July 29th (Tuesday) will close at 17:30 |
*Please note that the store will close at 5:30pm on the final day (July 29th).
Custom-made consultation sessions are also available daily.
If you have any loose stones that you would like to place in our semi-custom frame (starting from 47,800 yen), please bring them with you.
*KARATZ custom orders are available for "jewelry purchased at KARATZ (KARATZ STORE, events, etc.)", "jewelry purchased from Shimizu Precious Stone", and "Koshu Precious Stone Cut Glass".
*It is also possible to create items using gems distributed by Karatz, such as gem lottery tickets.
We look forward to your visit.
~The jewels introduced at the pop-up store will be updated on this page from time to time~
=Table of Contents=
- Jewelry Corner
- The world's five great gemstones corner
- Paraiba Tourmaline Special
- Birthstone Corner
- Sanjay Cut Corner
- Overseas purchase corner
- Specialty & Skillful Cutting Corner
- Staff Choice Corner
- Regarding product requests currently listed on the Carats Store
- Auction listing and trade-in services
- Pop-up store visit and purchase benefits
- Custom-made consultation corner
- Great value! Custom-made set
💎Jewelry corner
We plan to bring a large selection of items this time, including original jewelry made with attention to detail by KARATZ staff and affordable Karaffuri (Karatts Flea Market) jewelry!
New works are being completed one after another! We would like to introduce some of them.
This ring is made from Paraiba tourmaline from Mozambique, and its refreshing color is striking.
Paraiba tourmaline from Mozambique tends to be larger than that from Brazil, so it is recommended for those who prefer larger stones.
Center stone: Paraiba tourmaline from Mozambique
Side stones: London blue topaz, diamonds Metal: K18YG
This ring, designed like a tiara, has a kornerupine center stone.
It looks like a peacock spreading its wings, giving it a sense of splendor.
Center stone: Kornerupine
Side stones: Kornerupine, Santa Maria aquamarine, Paraiba tourmaline, ice blue diamonds Metal: Pt950
This ring also has a kornerupine center stone. Even with the same gemstone, the impression can change dramatically depending on the individuality and design.
The aquamarine side stones give it a cool look, as if it will send a refreshing breeze through your fingers.
Frame name: Charm
Center stone: Kornerupine
Side stone: Aquamarine Base metal: K18YG
💎The World's Five Greatest Gemstones Corner
This corner features the world's five most famous gemstones: diamond , ruby , sapphire , emerald , and alexandrite .
From affordable to slightly better quality, take a look and compare the different options to find your favorite.
Ruby
Kashmir Sapphire
💎Paraiba Tourmaline Special
Paraiba tourmaline is a striking gemstone with a vivid neon blue to green color . It may be small, but it has a strong presence that attracts viewers and is very popular around the world. Since it is only found in a limited area, the price of this gemstone continues to rise every year.
Currently, the main production areas are said to be Brazil and Mozambique. Please compare the characteristics of Brazilian and Mozambique tallow.
Paraiba tourmaline from Mozambique
Paraiba tourmaline from Mozambique (contains iron oxide)
💎Birthstone Corner
This is a section that collects the birthstones for each month.
If you don't know where to start, we recommend starting here.
If you are thinking of buying a gift for your family or loved ones, be sure to check it out.
You may discover something you didn't know before, such as that gemstones come in a variety of colors and types, and that their appearance changes depending on the cut!
Sphene (July)
Ruby (July)
Bekiri Blue Garnet (Color Change Garnet) <January>
Dragon Garnet (January)
Morganite (April)
Red Spinel (August)
Unheated Silky Pink Sapphire from Sri Lanka <September>
Bicolor Sapphire (September)
Canary Yellow Tourmaline (October)
Blue Zircon (Ratanakiri Blue) <December>
💎 Sanjae's Cut Corner
This is a corner for Sanjay, a skilled polisher from Sri Lanka who is well known at "KARATZ STORE".
Stones with many polished surfaces shine brightly even from a distance, and their beauty is eye-catching. Even beginners should be able to tell the difference.
Please come and see for yourself the gems that have been given their exceptional brilliance by Mr. Sanjay's sophisticated techniques.
Iridescent Tourmaline
Bicolor Kyanite
💎Overseas Purchase Corner
This is a corner for gemstones purchased overseas, including from Thailand, Tucson, USA, Sri Lanka, Hong Kong, and China.
💎Specialty & Skillful Cutting Corner
This corner is dedicated to a collection of skillfully cut gemstones made by skilled craftsmen from Japan and abroad. It is especially recommended for those looking for something a little different.
💎Staff Choice Corner
This is a corner that collects gemstones recommended by our staff.
We have put together a selection of gemstones that are popular among collectors, other than rare stones and birthstones. If there is a particular gemstone you are looking for, please ask our staff.
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[About product requests currently listed on the Carats STORE]
We have closed the acceptance of requests to see products on sale at the Caratz Store in person. Thank you to everyone who applied for a request.
Even if the deadline has passed, if you contact the " Carats STORE Inquiry Center ", we will do our best to assist you.
However, it usually takes 3 to 5 business days from the date of your request to prepare the item . Please note that we may not be able to prepare the item by the date of your visit, or we may decline your request depending on the situation.
In particular, if you make an inquiry after the start of the event, it may be difficult to respond immediately, and there is a high possibility that we will not be able to accept your inquiry. We ask for your understanding and cooperation that we cannot guarantee that we will be able to accept your inquiry.
【please】
*If there are any changes to your application, such as a change in the date and time of your visit, or if you are unable to visit on the day due to illness or other reasons, please contact our inquiry desk in advance.
*There is no need to contact us in advance if you wish to change your visit time on the same day.
*As a general rule, we do not accept reservations for products at the "Karats Store." Even if you have requested an item, it may be sold out before you can view it.
If all of your requested items have been sold, we will contact you.
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[About the auction listing and trade-in services]
We will be offering auction listing and trade-in services exclusively from July 25th (Fri) to July 27th (Sun)!
Karaoku is a new service from KARATZ in partnership with Aucnet, the operator of one of the world's largest B2B auction sites.
We will sell the jewelry you entrust to us at an auction attended by professional gem buyers from Japan and abroad, allowing you to sell for a higher price than you would with a typical purchase service.
*Some gemstones cannot be auctioned depending on their type and quality.
▶ Click here for more information about Karaoke
KARATZ can also trade in items that are difficult to put up for auction or items you wish to sell.
The trade-in amount will be given to you as a coupon to be used at the event, which can be used to purchase products or towards the processing fees for custom-made jewelry.
<What is the trade-in service?>
Unlike a purchase service where you are paid in cash, trade-in is a service where you are paid in the form of a coupon that can be used at events, Karatz Stores, etc.
In exchange for using the points to purchase products at Caratz, we will buy them at a higher price than we would buy them at.
If you are considering purchasing an item or creating custom jewelry, we recommend using our trade-in service.
*Please note that due to Ueno Marui regulations, we are unable to provide a purchase service, so this time we will only be able to offer the item for auction or trade-in.
*Jewelry and precious metals that are traded in will mainly be sold to overseas business partners (jewelers). They will not be sold at Caratz stores.
● Target items
Jewelry and bullion of K9 or above, Pt750 or above *This also includes broken earrings, cut necklaces, and earrings that are only missing one piece.
*Loose stones and rough stones are not included.
● Trade-in method
If you are interested, please contact the KARATZ staff.
● [Reference] Precious metal purchase price market
<As of Monday, July 7th>
Gold: 16,863 yen/g Platinum: 7,006 yen/g
*The price is calculated based on the bullion market price on the day of the transaction (which changes daily).
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💎Pop-up store visit benefits💎
Anyone who answers a simple online survey about which corner they were satisfied with will receive a gift of gems!
*Please choose one. You cannot choose.
💎Pop-up store purchase benefits💎
1. A shop card with a coupon that can be used at "Karatz Store"
All customers who make a purchase will receive a SHOP card with a coupon that can be used at the "Karats STORE" and at the event starting the next day.
2. Jewelry lottery based on the total purchase amount per transaction
Depending on the amount of your purchase in one transaction, you can draw one jewelry lottery❗️
Over 10,000 yen: Jewelry lottery with diamonds, sapphires, etc.
50,000 yen or more: Middle class jewelry lottery
Over 100,000 yen: High-class jewelry lottery
*In the high-class gem lottery, you can win Brazilian alexandrite, Paraiba tourmaline from Batalha, Brazil, pink diamonds, and more❗️
There are no losing tickets in any of the lotteries. You are guaranteed to win a gem🎯 Why not give it a try?
■ Weekday-only lottery
If you purchase products on weekdays from Monday, July 28th, you will have the chance to enter a lottery to win original goods!
Weekdays (except the first day) from morning to evening tend to be relatively relaxed when you can view the items at your leisure, so this is especially recommended for those who would like to leisurely enjoy the jewelry or consult about custom orders.
After enjoying shopping, try your luck with the weekday-only lottery! It's your chance to win some wonderful original goods.
*This does not apply to Thursday 24th, Friday 25th, Saturday 26th, and Sunday 27th.
💎Custom-made consultation corner
You can request a custom-made ring, pendant, etc. on the spot using the gemstone you selected on the day.
This also applies to loose stones previously purchased from Caratz and stones purchased from Shimizu Precious Stones. If you are considering purchasing, please bring them with you.
You can also customize it by changing the side stones to Paraiba tourmaline, alexandrite, hot pink spinel, etc. Try placing it in the frame and expanding your imagination.
[Points to note when purchasing loose stones]
If you would like to have a custom-made item made using a loose stone that you have previously purchased from Caratz or Shimizu Precious Stones, please be sure to read and agree to the following precautions before bringing it in.
◎ Regarding products previously purchased from Caratz
Please be sure to bring proof that you have previously purchased from Caratz.
<Example>
●Caratz Quality Assurance Certificate (formerly Caratz Identification Certificate)
- Something that shows your product purchase history (such as a screenshot of the purchase screen)
●Stickers that were attached to products during the event, etc.
If a stone breaks during the processing of a product purchased from our company into custom-made jewelry, we will provide full compensation (※) by refunding the cost or finding a replacement.
*Some gemstones may not be covered by compensation depending on the type and condition.
For items that we are not sure have been purchased from us in the past, we may refuse to accept your order as it would be difficult to provide compensation.
We can also create products using bonus items that have been given away for free in the past, but we cannot provide compensation if the items are broken. Thank you for your understanding.
◎ Regarding products purchased directly from Shimizu Kiseki <br> For products that have been purchased directly from Shimizu Kiseki in the past, we cannot provide compensation if the product breaks during processing.
Please only bring it in if you are happy with this.
💎Great value! Custom-made set
The custom-made set is back and more powerful than ever!
There are three main sets: 0 yen set, 5,000 yen set, and 10,000 yen set, and each set has more than five varieties to choose from.
*We carry a wide variety of gemstones, including diamonds, alexandrite, and spinel.
In addition to the above, we also have sets made with Shimizu Precious Stone's gemstones.
For both sets, you can choose the frames from the same lineup as regular semi-custom orders, and the price is the same.
This is an event-limited item.
As with the last time, we also have a full lineup of loose stones for half eternity rings available.
It can be surprisingly difficult to find multiple stones of the same size and shape on your own. If you have a set with your favorite gemstone, color, and size, don't miss out.
This is a set of 3mm green kornerupine.
Kornel tweezers size: 3mm
This is a set of top quality 2mm benitoite. You can fully enjoy the deep color and pleochroism of benitoite.
Benitoite <Top Quality>
Size: 2mm
The last set we would like to introduce is a set that combines various stones. We chose loose stones with colors that evoke the image of hydrangeas and named it after them. You can also enjoy the changing colors of the Bekiri Blue Garnet.
Purple Sun Night (Ice Blue Sapphire, Amethyst, Bekiri Blue Garnet, Tanzanite)
Size: 2mm
Don't miss this chance to try it out!!
