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[Lottery sale: Deadline: Thursday, April 24th] A total of 10 pieces including phosphophyllite from Bolivia, top-quality Colombian emeralds, and vibrant color-change sapphires

Limited quantities will be sold by lottery.

This lottery sale is a special feature on rare stones. There are a total of 10 stones, including rare cut phosphophyllite from Bolivia, beautiful emeralds, and color-change sapphires that show vivid color changes.

[Application acceptance period]
Until 10:00 on Thursday, April 24, 2025 *Winners will be contacted by email on April 24th.
*If payment is made by 10:00am on Friday, April 25th, your order will be shipped on the same day (April 28th is a shipping holiday).


▶Twin Star Sapphire

The only person in the world who can cut this Twin Star Sapphire is a polisher living in Sri Lanka. The method of cutting is completely confidential, as it has been invented over many years, and the type of rough stone it is cut from is also a secret. This is a Violet Twin Star Sapphire purchased directly from Ratnapura, Sri Lanka.

Product 1: Rare Stone <br>Stone type: Purple star sapphire from Sri Lanka, 1.163ct loose stone <br>Size: 6.7 x 4.1mm
Weight: 1.163ct
Accessories: Caratz quality guarantee, loose case Quantity: 1
Price: 39,800 yen <br>Product ID: 12545719



If you would like to see more photos, please click here: https://store.karatz.jp/products/12545719 (viewing page)


Product 2: Rare Stone <br>Stone type: Purple star sapphire from Sri Lanka, 2.461ct loose stone <br>Size: 9.7 x 4.7mm
Weight: 2.461ct
Accessories: Caratz quality guarantee, loose case Quantity: 1
Price: 79,800 yen <br>Product ID: 12545720



If you would like to see more photos, please click here: https://store.karatz.jp/products/12545720 (viewing page)

▶Bi-color blue zircon from Malawi While Cambodia is the most well-known source of blue zircon, Malawian zircons are also found on rare occasions. Compared to Cambodian zircons, Malawian blue zircons tend to be characterized by a vivid blue color, and the extremely rare bi-color specimens have the distinctive feature of clearly separating the boundaries between the colors .
This bi-color blue zircon from Malawi is extremely rare, and this time we were able to purchase one particularly beautiful blue stone.


Product 3: Rare Stone <br>Stone type: Malawi bicolor zircon 0.621ct loose stone <br>Size: 5.3 x 3.6mm
Weight: 0.621ct
Accessories: Caratz quality guarantee, loose case Quantity: 1
Price: 29,800 yen <br>Product ID: 12558442



If you would like to see more photos, please click here: https://store.karatz.jp/products/12558442 (viewing page)


Product 4: Rare Stone Stone type: Mozambique Illusion Paraiba Tourmaline 3.987ct loose stone (CuO: 0.3%, MnO: 4.9%)
Size: 10.0 x 8.5 mm
Weight: 3.987ct
Accessories: Sorting (Jewelry and Precious Metals Association), Caratz quality guarantee, loose case Quantity: 1 Price: 69,800 yen Product ID: 12558567



If you would like to see more photos, please click here: https://store.karatz.jp/products/12558567 (viewing page)

▶Phosphophyllite

Phosphophyllite has beautiful pale blue and blue-green hues. It is a gemstone that has attracted attention since it appeared as the main character in a popular manga. It is a rare stone that is rarely cut and is rarely available on the market because it is produced in small quantities and is brittle and difficult to cut.

Product 5: Rare Stone <br>Stone type: Phosphophyllite from Bolivia, 0.099ct loose stone, Japan-Germany appraisal <br>Size: 2.8×4.2mm
Weight: 0.099ct
Accessories: Certificate of Authenticity (Japan-Germany Gemstone Research Institute), loose stone case Quantity: 1
Price: 98,000 yen <br>Product ID: 12558584



If you would like to see more photos, please click here: https://store.karatz.jp/products/12558584 (viewing page)

Colombian Emeralds
This is a top quality Colombian emerald. Its beautiful color makes it easy to mistake it for a synthetic emerald. You can enjoy its beauty at first glance.


Product ⑥ Rare Stone <br>Stone type: Colombian emerald 0.203ct loose stone <br>Size: 5.0×3.8mm
Weight: 0.203ct
Accessories: Certificate of Authenticity (JTL (Jewel Trading Laboratory)), Loose Case Quantity: 1
Price: 98,000 yen <br>Product ID: 12558766



If you would like to see more photos, please click here: https://store.karatz.jp/products/12558766 (viewing page)

Oil-free emerald from Colombia
This is a 3.5mm round cut Colombian oil-free emerald with high transparency and luster. It also comes with a GIA certificate. It is also recommended for jewelry processing.


Product 7 Rare Stone Stone type: Colombian non-oil emerald 3.5mm/0.170ct loose GIA
Size: 3.5×3.5mm
Weight: 0.170ct
Accessories: Certificate of Authenticity (GIA), loose case Quantity: 1 Price: 128,000 yen Product ID: 12558765



If you would like to see more photos, please click here: https://store.karatz.jp/products/12558765 (viewing page)


Product 8. Rare Stone <br>Stone type: Tanzanian pink zoisite 0.242ct loose stone with identification certificate <br>Size: 5.6×3.2mm
Weight: 0.242ct
Accessories: Certificate of Authenticity (JTL (Jewel Trading Laboratory)), loose case Quantity: 1 Price: 98,000 yen Product ID: 12557942



If you would like to see more photos, please click here: https://store.karatz.jp/products/12557942 (viewing page)

▶ Color change unheated sapphire

This is a color-changing sapphire that appears to change color depending on the light source.
This is the type that changes from blue to purple. It is also not heated.


Product 9: Rare Stone Stone type: Unheated blue sapphire 1.450ct loose (color change) GIT
Size: 7.5 x 6.1 mm
Weight: 1.450ct
Accessories: Certificate of Authenticity (GIT), loose case Quantity: 1 Price: 158,000 yen Product ID: 12554515


If you would like to see more photos, please click here: https://store.karatz.jp/products/12554515 (viewing page)

Brazilian Bicolor Tourmaline
This bicolor tourmaline is large at 13 carats. Its beautiful cut and transparency can be enjoyed with the naked eye, making it a tourmaline with a strong presence.

Product 10. Rare Stone <br>Stone type: Brazilian bicolor tourmaline 13.927ct loose stone <br>Size: 18.0 x 12.7mm
Weight: 13.927ct
Accessories: Caratz quality guarantee, loose case Quantity: 1 Price: 198,000 yen Product ID: 12554912



If you would like to see more photos, please click here: https://store.karatz.jp/products/12554912 (viewing page)

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[How to purchase and points to note if you win]

・We will only contact winners via email regarding the results of the lottery sale. Please note that we will not be able to contact unsuccessful applicants.

・After the deadline, we will send the winners an email with the URL for their special page on the Carats STORE , so please use that to complete the process.
Payment methods accepted include credit card, bank transfer, and convenience store payment.

- Purchases must be made within 72 hours from the date and time the winning email is sent.
If you are unable to purchase within that time, we will hold another lottery. Please note that we will not contact you separately in this case.

・Once you have applied for the lottery sale, you cannot change or cancel your application.
Please note that if you cancel for personal reasons, you may be denied participation in the Caratz lottery sale. If you need to cancel your application, please contact us during the lottery sale acceptance period.

・ We try to make the photos as close to the actual colors as possible, but they may look slightly different from the actual product depending on the lighting conditions during the photo shoot and the monitor environment you are using. In addition, some photos may be taken using a penlight.

-If you have any questions about the product, please contact us before purchasing.

・There are only about three photos on the lottery sales page, but there are multiple photos on the product page, so please check those photos as well.