The client has light metal allergy so he required the followings;
Material; Hafnium
Design; Simple wedding rings
Size; Want to check at the studio
No stone
We shaved Hafnium to flat shape and mirror finished.
Hafnium forms very strong passivation film, so most acid and
alkali are not eluted that mean metal ion isn't eluted, too.
Then there are no causations for metal allergy.
Hafnium powder may be eluted to strong alkari, but hard ring isn't
eluted even in strong alkali.
The beautiful pair ring made from pure Hafnium mass are their
special wedding rings.
Cut from mass
Shavings
Ring box
<Comment from clients>
Mr. Hirose, Thank you always.
We got rings and we are so happy that you made
such a wonderful ones!
We really regret that we couldn't visit you and
receive our rings by hands.
We wanted to say thank you face to face.
We wear our rings forever!
By the way, I have one question about Hafnium.
I think our Hafnium rings are not very white though I thought
Tantalum is black and Hafnium is white.
Is my ring getting darker after several years by daily use?
<Comment from Hirose>
This color is Hafnium color that I showed you as a sample when we had a first meeting.
Of course Tantalum is much more black. Maybe you compared to trial sample rings that I sent you before. The sample rings are made from Aluminum and the color is really white. Hafnium doesn't change its' color after many years so
please don't worry for color change.
Hafnium pair ring order made;
width 2.5mm (left)
width 3.5mm (right)
Pair;¥368,280-(including tax and shipping fee)
Write a comment
ui_4054@hotmail.com (Monday, 11 February 2019 12:25)
Greetings from Colombia.
I´m interested in adquire a hafnium proposal ring, with a soft blue zircon if it possible.
Thanks in advance.
Miguel
TOMONORI HIROSE (Tuesday, 12 February 2019 09:45)
Thank you for your comment!
Purchasing is also possible from Colombia.
Settlement is paypal, shipping can be done with DHL.
As shown here hafnium can color blue.
http://ringology.org/banana/2637811
Width of ring
Ring size
design
String
Please let me know,
I will inform you of the estimate.
Gratefully,Hirose