Skip to product information
1 of 10

アメイジング工房

Ultimate Beauty] 1.175ct Hiro Koganei "Nichirin" Natural Diamond VVS-2 Ring Pt900 by Hiroyuki Koganei [with CGL Certificate].

Ultimate Beauty] 1.175ct Hiro Koganei "Nichirin" Natural Diamond VVS-2 Ring Pt900 by Hiroyuki Koganei [with CGL Certificate].

Regular price ¥598,000 JPY
Regular price Sale price ¥598,000 JPY
Sale sold out
tax included
Display details

A unique presence with an impressive 3.5 carats. A mellow, fancy brown glow that blends in with the skin.

Pt900 3.518ct brown diamond ring

The scale of 3.5 carats is breathtaking.
The rare large fancy brown diamonds give this ring an overwhelming presence on the finger.

The center stone is a 3.518 ct. cushion-cut diamond.
The graceful, angular shape emits a warm, mellow brown light reminiscent of fine cognac. It blends seamlessly with the skin and continues to radiate a deep and captivating radiance.

The sparkle of the main feature is enhanced by a total of 1.10 ct. of side diamonds lavishly set on the arms.
The tapered baguette cut emits sharp light, while the round brilliant cut adds a delicate sparkle. The contrast of light created by these two cuts adds a modern and sophisticated edge to the classical beauty of the center stone.

The heavy construction of platinum 900, weighing over 11 grams in total, firmly supports this special gemstone and gives you a sense of certain satisfaction on your finger.

An exceptional statement jewel that instantly catches the attention of those around you.
The images can never do justice to the rare brilliance of this piece.
We hope you will enjoy it for yourself.

The actual piece is much more beautiful than the picture. You can see it in person at our office, so please contact us for an appointment if you wish.

- SPECIFICATION

Main Stone Natural Brown Diamond
3.518ct (Fancy Brown / I-1 / Cushion Cut)
side stone Natural diamonds (1.10 ct. total)
metal PT900 platinum
Size Size 16.5 (free resizing)
Motif size: approx. 9.2 x 9.6 mm
Arm width: approx. 1.9 mm
Weight Approx. 11.24g
Accessories {Jewelry case

We offer free wrapping service.
Please let us know if you would like gift wrapping.

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

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.

Online Shop

Contact us

Natural diamonds with asset value Order Requests are also available.
Contact Us