Platinum rings - which alloy is best?

Jewelry Discussion
21

Keo,

While I don’t have the long term expertise that many of our fellow
Orchidians do, I do have a tiny bit of practical experience. My
husband bought me a plat900 for our anniversary 4 years ago and I can
tell you I am thrilled with it. The band is carved with intricate
leaves and stuff (maker is Simon G). I’ve worn it non-stop. I often
forget to remove it for bathing, doing dishes, or working around the
house or whatever. If I look very, very closely some of the really
delicate lines are maybe slightly blurred, but otherwise the ring is
every bit as gorgeous as the day it was put on my finger.

Many blessings with your decision,
Dawn B. in Taylor, Texas

22

Hello Dawn,

Thanks for sharing.

It’s great to have opinions from both worlds - from the experienced
ones whom work with the metal on daily basis and from the "end-users"
who can give fine on how the metal’s hold up in real life
which is equally important.

I assume the alloy in your ring is Iriplat? Yeah, that alloy indeed
seems popular! :slight_smile:

Unfortunately, the shop that we intended to purchase our rings from
(Furrer-jacot/siara) notified us that the alloy being used in their
rings is platinum/palladium, 950/50. :frowning: I was hoping for
plat/ruthenium or at least plat/iridium…

While my girlfriend didn’t seem to mind too much about the bad news
(she liked the model), I am not too impressed and am frankly quite
disappointed. We’ve decided not to put a stone in the ring, but I’m
more worried about how well the ring will maintian its circular shape
after a while, given the fact that the alloy has a Vickers below 70.

However the salesperson insisted their alloy was cold worked, thus a
higher Vickers have been achived. I just hope that statement is true!

B rgds
Keo

23

Okay, I’ve found some useful(?) links on how hard 1000 parts platinum
can get and here it is - 300 HV (!). To achieve this it seems the
1000 plat. is mixed with tiny amount of gold.

As I understand it, Pilot offers two 1000 plat.solutions: Ptau and
UHP1000.

And the weirder thing is that a 4 mm Ptau plat. ring weighs around
5.5 gram, , while a Plat/palladium ring sold in Sweden, with
same width and abt 2 mm thick weighs over 10 grams!

The sites I’ve found are in Japanese, but babelfish.altavista.com
does help little.

Here it goes (long story):

  *As for the deformation test item it is in a state where it is
  tested by the 30kg load. Deformation strength differs
  (depending upon design) 

  *The frictional scratch test the marketing wire brush (is
  scratch state of the surface after the true) with 50 time
  brushings make. 

  Both the deformation test frictional scratch test, the simple
  shell circle (width 3mm, Koudaka 1.5mm, size 12) it tested with
  form. 

  The ultra hard platinum UHP1000 which exceeds the hard
  platinum. 

  In daily life it is the suitable material in the marriage ring
  which has the durability which is strong in strength and the
  scratch which it does not become deformed. 

  We draw the line where the inside of the ring is smooth, fit
  to the finger easily. 

  It is finished in the smooth film which freely uses the
  precious metal process technology which is cultivated with the
  fountain pen, does not have connection. 

  The invention of UHP1000 is recognized as platinum guild
  international (PGI) from Pt1000 Advanced Technology
  Development support prize the prize winning (1997) it is the
  only new technology which is done. UHP... diamond pyramid
  hardness 200Hv PT1000 hard bullion... diamond pyramid hardness
  90 - 120Hv (Diamond pyramid hardness the extent whose numerical
  value is high means hard thing) 

  Is the new material just of the pilot which is strong in
  deformation and the scratch(patent acquisition end) 

  FFF (finger fine fitting) per finger is satisfactory in the
  design. High accuracy finish only of pilot 

  As for Pt G1000, the pure platinum which PILOT actualizes for
  the first time (diamond pyramid hardness: Hv50) with pure gold
  (same: With the alloy of the precious metal 100% which Hv40) 1
  to it hybridized at ratio of 1, does not have example in other
  things, you are proud of the super hardness, Hv300, (* during
  patent applying). In daily life the durability which is
  superior rub vis-a-vis the scar and deformation is shown. 

  Because it consists of the pure platinum and the pure gold, it
  is 100% high purity as a precious metal. 

  Ptau (Pitot) super hardness & precious metal 100% Pt
  (platinum) Au (gold) =Ptau (Pitot) 

  With the completely new marriage ring where Ptau (Pitot), Pt
  G1000 was built up in the material, as the anniversary ring
  which celebrates time-honored marriage we recommend. Pt G1000,
  with the alloy of the precious metal 100% which does not have
  example, to other than the pure platinum and the pure gold
  which PILOT actualizes for the first time, Hv300 * with is
  proud of the super hardness which is said. In addition, in
  order to be easy to set also all product, easily to fit, the
  endophragmal skeleton circular finish is administered. * As for
  the pure platinum hardness Hv50, as for the pure gold it is
  Hv40, but Ptau which is the alloy of the platinum and the gold
  achieves the hardness, Hv300, shows preeminent durability
  vis-a-vis the scar and deformation."

Pheew. I have exhausted Babelfish. :slight_smile:

B rgds
Keo

24

Yep!

Bottom line: don't settle for anything less than Hv 110, and better
yet go for the 135.

There was some mistake in the flow - Siara brand carries
rings with Plat/Ru alloy and cold worked they achieve a hardness of
230 Vickers!

Thanks all for fine tips and guidance

B rgds
Keo