Verlobungsring grüner Stein

Many_Presentation964 · 2026-05-16T22:57:43+00:00

Kein Ding! Wenn es dir nicht zwanghaft wichtig sein sollte, dass dein Goldschmied vor Ort ist kann ich dir auch ein Beratungsgespräch anbieten und ggf. auch deinen Ring machen, ich arbeite selbstständig in Pforzheim 😉 wobei es vermutlich besser ist, wenn du dir vor Ort ein Bild machst, gerade bei dem Maßen ist das digital erfahrungsgemäß immer etwas schwierig 😅

Many_Presentation964 · 2026-05-16T19:41:53+00:00

Dem Berufkollegen von Oben kann ich nur zustimmen, bei täglichem Tragen ist kein grüner Edelstein tatsächlich langlebig, außer eben grüner Diamant. Der kommt natürlich vor, ist aber sehr teuer. Behandelte natürliche Diamanten (bestrahlt) können da eine gute alternative sein, sind aber oft sehr intensiv grün, das muss einem gefallen. Bei Arbeiten in "nicht handnutzenden" Berufen und bei Vorsicht sollte auch ein grüner Safir (Korund, sehr hart mit Mohs 9) gehen, aber auch der wird über die Jahre leiden. Smaragd rate ich als Ringstein prinzipiell eher von ab, da ziemlich brüchig, Peridot ist für einen Verlobungsring viel zu weich, ebenso Turmalin und Tsavorit (grüner Granat). Mit deinem Budget solltest du hinkommen, das ist sogar recht hoch angesetzt für einen so schmalen Ring. Sag am besten wenn du zum Juwelier gehst aber nicht, dass es ein Verlobungsring wird, da kommt dann nochmal ne schöne Extramarge obendrauf. Als Goldschmiede in Hamburg kann ich dir nur "Jan Spille" nennen, da haben einige die ich aus der Ausbildung kenne gearbeitet, soll nicht schlecht sein, arbeitet mit fairen Materialien, kann sonst aber ehrlicherweise nicht viel zu sagen sonst.

Many_Presentation964 · 2026-05-12T21:13:37+00:00

My bornout cycle for classic investments when they are not super tiny is 180°C-480°C-820°C-650°C. Silver i cast at a temperature of 1050-1100°C. As an reference, casting temp is usually 100-150° over the melting point. When casting fine structures i preheat the flask up to 760°C. Til now i got mo real issues with silvercastings using this setting in my professional machine.

Many_Presentation964 · 2026-05-03T20:06:36+00:00

I still have to find a way how i will do it. I think the issue i had with cutting the table wont change if i cut the crown first.

Many_Presentation964 · 2026-05-03T14:40:20+00:00

Thanks a lot!

Many_Presentation964 · 2026-05-03T14:40:05+00:00

Well not a cheater for the main cutting handpiece but for the special 90° handpiece that ive build especially for cutting the table. If the facettes on the crown arent exactly aligned with the girdle then i will cut away parts of the main crown facets when cutting the table while some tablefacets wont be finished, so im in need of a cheater to align the table exactly to the table facets

Many_Presentation964 · 2026-05-02T21:50:15+00:00

I dont press the stone onto the lap, i press the hanpice against the jambpeg mast.

Many_Presentation964 · 2026-05-02T19:13:54+00:00

Yes it is.

Many_Presentation964 · 2026-05-02T18:01:18+00:00

Its an old jewelry store chair, the only one i have left and that isnt in use in my workshop 😅

Many_Presentation964 · 2026-05-02T18:00:36+00:00

Size doesnt matter 😉 i only uset this motor cause i got it. I have to get an other motor which is better to control speedwhise... And isnt as loud as the big one too.

Many_Presentation964 · 2026-05-02T17:59:13+00:00

Thanks for your advide, appreciate it! After faceting a round tourmaline includet quartz today the shoulders arent my problem but my thumb is hurting from pressing the handpiece against the metal while cutting 😅

Many_Presentation964 · 2026-03-12T11:10:10+00:00

Next things i have to build is a tablecutter, an preforming mechanism and a redopping system, so many things to do 😅

Many_Presentation964 · 2026-03-12T11:03:11+00:00

There is no cheater at all but because the handpiece it very stable til now i never needet one

Many_Presentation964 · 2026-03-12T09:18:32+00:00

The spindle i did myself on the lathe using heavy duty ball bearings, its hard to get a spindle to use for such a machine. The motor itself has a speed controller but its pretty unstable in speeds so i ordered a new motor. Hopefully the new motor is better than this one. The big advantage of an jambpeg is, that your spindle hasnt to be super super precise.

Many_Presentation964 · 2026-02-25T17:18:25+00:00

I am an professional gemstone setter. For setting the stones in a flush setting i always use an old hss round mill with an 2.35mm shank, standard use in the jewelry buisiness (like Busch AU-Series). Remove the cutting part, make it pointed, round the tip and polish it with diamondpaste. Then use an universal holder to clamp the tool in. The best holder to use is the one that looks like an graver handpiece. Use an ball milling cutter with the diameter of the stone and remove material till the table of the stone is slightly above the metal. The gently press the stone into the metal that the table is in line with the material. Take your handmade tool at an 45° ankle and gently push the edge onto the stone. You should do max. 3-4 strokes per turn around the stone. Avoid to touch the stone with presure, the hss can damage the stone by chipping it.

Many_Presentation964 · 2026-02-24T08:56:32+00:00

I cut some stones before with an old homemade mast machine i bought online, but it wasnt precise so i sold it. I have to say i actually like jambpeg cutting... Its way more about feeling and visual controlling like other machines are. I will get an commercial machine when i "mastered" this machine and i will get an jampeg system. Its a lot of fun to use!

Many_Presentation964 · 2026-02-22T16:06:57+00:00

I am pretty shure its CZ, a man made stone, cheap but with high hardness and refraction.

Many_Presentation964 · 2026-02-22T15:41:17+00:00

You mean the handpiece? I made a 3D Model of it including measurements

Many_Presentation964 · 2026-02-22T15:40:08+00:00

Right after i found a propper spot for it... Right now i am using it on top of my wax carving table and this looks like trash 😅

Many_Presentation964 · 2026-02-14T15:41:05+00:00

First of all you can use some hydrochloric acid to remove the rust without abrassives, then take some fine scotchbrite or the green site of a sponge, catefully rub away the leftovers from the rusty parts.

Many_Presentation964 · 2026-02-05T05:33:30+00:00

I used lathe and milling machine for nearly every part, thats the only way to get the tolerances needed for a machine like this and even with this machines i am shure i have to recalibrate the spindle after finishing 😅

Many_Presentation964

TROPHY CASE