Amazing workshop

Changing Lives.Into Diamonds.that will change your life.

Everlasting value

50ct,30ct,20ct GIA D FL 3EX TYPE2A

65ct D FL TYPE2A rough diamond

Rough Diamond Scan Analysis

Notices

2024/01/01 We have expanded our business hours. Please contact us to make an appointment before visiting our store!
If you are using LINE, please click here to make a reservation. 2024/01/01 ☆We accept Bitcoin payment. Please contact us for more information about high quality diamonds with high asset value. Please contact us from [Contact Us]!

Diamonds, an eternal asset

World's largest! Highest quality! GIA 52.09ct D FL 3EX TYPE2A Loose Natural Diamond [with GIA Certificate Book ¥3,000,000,000

0.75ct FANCY RED Natural Red Diamond Loose Cushion Cut Fancy Red [GIA Certificate]. ¥240,000,000

Highest quality! GIA 30ct D FL 3EX TYPE2A Loose Natural Diamond with GIA Certificate Book ¥990,000,000

Ultra-rare! Fancy Vivid Pink 1.01ct Natural Diamond Loose Pear Shape with GIA Certificate ¥68,000,000

20.23ct D Color Flawless 3EX TYPE2A Natural Diamond Round Brilliant Cut Loose Diamond [GIA Certificate ¥550,000,000

Ultra-rare extra-large 35.94ct natural pink diamond Light Pink Brown VS1 oval-cut loose [graded ¥590,000,000

11.231ct L color GOOD natural diamond loose round brilliant cut [with certificate of authenticity from Central Gem Laboratory]. ¥13,500,000

The world's highest quality! 10ct D FL 3EX TYPE2 Natural Diamond Loose Round Brilliant Cut ¥180,000,000

The dream of VIPs around the world! Exquisite treasure 10ct F color VVS-1 3EX natural diamond loose [with GIA certificate]. ¥95,000,000

Cartier] 6.32ct Fancy Intense Pink Natural Pink Diamond and 6.03ct D Color IF 2EX Natural Diamond K18 WG White Gold Earrings with GIA Certificate ¥970,000,000

Ultra Rare 0.14ct FANCY RED Natural Red Diamond Fancy Red Pt900 Platinum K18 PG Pink Gold 18k Gold Ring with GIA Certificate ¥16,800,000

List of High Quality Diamonds

About High Quality Diamonds

Selecting diamonds that won't harm you

These diamonds are the world's most trusted, GIA highest quality, and their value is higher than any gemstone, making them an attractive investment. They are also a highly liquid asset, not only to own, but also because they can be easily cashed in anywhere in the world as needed.

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A world-class asset that can be passed down from generation to generation

We are pleased to offer you the opportunity to purchase directly from us these world-class diamonds of the highest quality and largest. This is an asset that is worth more than cash in the financial markets. As you know, the value of cash is declining rapidly. But the value of the world's finest and largest diamonds, on the contrary, is going up. This makes the diamond a very attractive option for investors.

The status of owning the world's finest

In an uncertain global economic climate, owning an asset of such solid value is a wise investment and an important factor in achieving stable asset management. We hope you will not miss this opportunity to consider the world's finest and largest diamonds.

Truly valuable and rare gemstones

World's largest and highest quality Colombian old mine muzo 67.586ct natural emerald total 9.12ct natural diamond Pt900 platinum pendant necklace [with GRS certificate of authenticity]. ¥198,000,000

World Rare! 65.26ct Unheated No Heat Royal Blue Natural Sapphire from Myanmar 33ct Natural Diamond K18 WG White Gold Pendant Necklace [with GRS Certificate of Authenticity]. ¥270,000,000

Ultra-rare and world-class! Brazilian Neon Blue paraiba tourmaline 7.36ct Pt900 platinum ring with GIA certificate ¥79,800,000

Largest high quality 40ct natural alexandrite 2ct natural diamond platinum Pt900 ring ring June birthstone [with certificate]. ¥36,000,000

Ultra Rare Large Unheated 15ct Kashmir Sapphire 3.96ct Natural Diamond Platinum pt950 Ring with Certificate of Authenticity ¥120,000,000

World's highest quality muzo Colombian vivid green 20ct UP emerald Pt900 platinum ring [with GRS certificate]. ¥33,000,000

Sri Lankan royal blue unheated sapphire 11.412ct natural diamond 3.02ct platinum Pt900 ring with GIA certificate ¥9,800,000

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Natural diamonds with asset value Order Requests are also available.

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Amazing Kobo's Commitment

We deal 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 detail page

Worldwide network of gemstones We have a worldwide network of rough gemstones and offer the highest quality diamonds and rare gemstones, etc., No. 1 in Japan.
We can find diamonds and rare gems that you cannot find anywhere else. View detail 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 detail page

About Amazing-Kobo We are a diamond and rare stone company, and we are not just a diamond and rare stone shop.
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 from 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.