It is the king of gem, the most valuable, most expensive color stone, Alexandrite platinuming.
It is not unusual for department stores and brands to cost 200 to 3 million yen if they exceed 1CT.
Such a 3.53ct size is rarely in Japan. If you order, it costs at least 10 million yen.
This is a bargain price of a super special price!

It was found in Russia in 1800 and was named Alexandright because he was offered to the royal family on his birthday of the emperor's son, Alexand II.
paraiba tourmaline, Paparachiia and Alexandrite are called the Three Rarely Stones, but they are the most valuable color stones.
It is a valuable, jewelry that jewel fans want to get once in a lifetime.

The value of Alexandrite is the change in its color. This is a drastically changing color and proves its high quality.
It fascinates a different color from the red type under the incandescent light with a natural light, gives off a mysterious glitter.☆

This exceptional alexandrite is different from the GIA, and its reliability and quality are guaranteed.

Now, the Alexant light boom is coming again, and better quality is rising.
It is a jewel to buy now.
This price cannot be given again.

The colorless and transparent triangle and round cut diamonds are dignified on the side, giving an elegant impression just by putting it on your fingers, with a gorgeous glitter on the side.
The ring design is also elegant, and the unique color of Alexandrite is distinguished, and it is a special beauty that makes you want to see from various angles.
Alexandrite is also a wedding stone for the 45th year of marriage. Why don't you give this ring to commemorate a special day or to express the affection for your loved ones?

Natural Alexandrite: 3.53ct
Natural Diamond: Total 0.69ct
Frame: PT900 Platinum

Arm width: about 2.5mm
Motif size: Approximately 11.9mmx17.8mm
Weight: Approximately 7.4g
Ring size: No. 12.5 (free size correction)

Accessories: GIA identification book, jewelry case

☆The product can be purchased after seeing it after seeing it.
If you don't like it, you don't need to buy it, so please feel free to come to the company.♪
You can also show many other products!
Please make a reservation for time in advance and visit us.

☆☆We will provide free wrapping service♪
If you would like a gift packaging, please feel free to tell us.

Be the first to know when we launch.

If you don't like what you see, don't worry, you don't have to buy.*To protect your privacy, we do not allow other customers to enter the store, and we only accept reservations in advance.

Original processing available

We can create an original design from a loose piece of jewelry, and we can provide you with a 3D design drawing.

How to purchase

For your convenience, we accept cash, bank transfer, bitcoin, USDT, etc. We accept domestic and international remittances for purchases. We will be happy to discuss your needs with you in strictest confidence.

We are professionals, so we can talk about it.
Genuine and up-to-date information

Don't be fooled by rare gems! (Paraiba tourmaline, Demantoid, Alecats, Grandierite, etc...)

The most important point,
(1) That it is rare and unusual.
(2) Rare and valuable

The two are two very different things.
[Click here for more information.

Customer Testimonials

I have been interested in physical investments for some time and was considering investing in diamonds.
I first looked for information online, but found it difficult to find a reliable supplier, so I was introduced to Amazing Studio directly by a friend.
We later set up a business meeting and purchased loose diamonds.
The price has already skyrocketed, and we expect the price to go up in the future.

Kyoto, Japan Male (50s)

I was looking for a Paraiba tourmaline ring and came across this site.
（I have searched many websites (and I have found the right one!).
I wanted to check the product first, so I contacted the company and they were willing to help me and I was able to see the actual product.
I am very satisfied with the product, which is better than the price.

Tokyo, Female (40s)

Contact us

Natural diamonds with asset value Order Requests are also available.

Contact Us

Amazing Kobo's commitment

Dealing in truly valuable gemstones We do not sell diamonds or colored gemstones that you will regret after your purchase.
We recommend diamonds and colored stones that you will be glad you bought and that you will be proud to show off. View Details Page

Worldwide network of gemstones We have a worldwide network of rough gemstones and offer the highest quality diamonds, rare gemstones, and other items that are No. 1 in Japan.
We can find diamonds and rare gems that you cannot find anywhere else. View Details Page

Thorough after-sales service As professionals, we do not engage in irresponsible business practices that end with the sale.
We also respond to requests for replacement or resale of purchased products. View Details Page

About Amazing-Kobo Diamonds and rare stones are not the same no matter where you buy them.
Diamonds and rare stones do not shine with brand names.
Their quality and size determine their value according to international standards.

Do not buy!
3 essentials for selecting diamonds and rare gemstones to avoid losing money. For more information, click here.

Quality & Warranty

Granding report・Identification report Our products come with certificates of authenticity and identification by professional institutions such as GIA and the Central Gemological Laboratory, which strictly certify the quality of our products, providing our customers with a sense of security and trust.

Guarantee We offer a full warranty for repairs and after-sales service to ensure that you can enjoy your jewelry for a long time after purchase.

Category List

Online Shop

Contact us

Natural diamonds with asset value Order Requests are also available.

Contact Us

Color Change! Large grains 3.5ct Natural Alexandrite Natural Diamond PT900 Platinum Ring Ring [GIA Differential]