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#751

Mackka
Member
From: Brisbane
Joined: 18 February 2014
Posts: 1,117
Member
08 January 2017 07:36 pm

Hey Heatho did you have the sapphire cut to fit into that finger, drastic move mate but could be a trend setter!!!!!
Wally just beautiful mate very nice.
Mackka
PS
Not knowing about cutting, faceting etc, what is the general loss from raw to cut?

1 user likes this post: Wally69

#752

digginhard
Member
Joined: 14 December 2016
Posts: 40
Member
09 January 2017 11:46 pm

Every day I come home from the Creek/river after digginhard and I feel a little dejected about the measly couple of sapphire bombs I found i just look at the cut stones here and I'm revitalised for the next days digging.Though I must say that sitting in a beautiful creekbed in a beautiful forest is "nearly" payment enough.Some fantastic looking gems to be seen here.Thanks for the motivation.Still looking for companions and anybody in the area are welcome to join me anytime.Cheers

Last edited by digginhard (09 January 2017 11:49 pm)


Have been everywhere man but nothing beats where I am now...

1 user likes this post: Wally69

#753

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 9,249
Moderator
10 January 2017 08:30 am

Mackka wrote:

Hey Heatho did you have the sapphire cut to fit into that finger, drastic move mate but could be a trend setter!!!!!
Wally just beautiful mate very nice.
Mackka
PS
Not knowing about cutting, faceting etc, what is the general loss from raw to cut?

That's Kingsolomon's finger mate I reckon he needs to stop trying to facet his fingers, lol. Every job has its dangers I suppose. smile


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

1 user likes this post: Mackka

#754

Wally69
Member
From: Sydney
Joined: 13 December 2013
Posts: 2,292
Member
10 January 2017 04:50 pm

Thanks for the kind comments

Mackka, yield will depend on the shape of the rough, but more so on the choice of cut and if inclusions need to be dealt with. 20% to 60% would be my wild stab in the dark as I have only cut a handfull.

Thought I would capture before and after size on this one but forgot to get a pre-cut carat weight to work out the % loss. This stone had a reasonably high yield as it had a good natural shape. The pre-form photo shows an indent that reduced the size bu about 2mm and it also has a small inclusion that I didn't fully chase out as it is vertically positioned at the girdle. I might have lost another 1.5mm if I totally removed it.

1 user likes this post: Mackka

#755

Mackka
Member
From: Brisbane
Joined: 18 February 2014
Posts: 1,117
Member
10 January 2017 09:39 pm

Thanks Wally69 that makes sense.
Cheers
Mackka

#756

shivan
Member
From: Nowra, south coast NSW
Joined: 15 February 2013
Posts: 1,030
Member
15 February 2017 01:44 am

Keep forgetting before photos but here is a set of earrings i just finished, quartz in 14k gold.
IMG_1252_zpsjdcef8e5.jpg
IMG_1260_zps3wvdbjzd.jpg
IMG_1265_zpsy2jylg6w.jpg


Minelab GP Extreme 11" & 18" DD, 2 highbankers, EZ river sluice and a growing collection of sieves and pans

11 users like this post: Gilly47, Wally69, Rockhound, silver, Heatho, Mr Magoo, Little gem hunter, bazza2210, Noogle, 22shells, Syndyne

#757

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 9,249
Moderator
15 February 2017 07:47 am

Nice Shivan, I'm sure they'll suit you very nicely..... smile

Just jokin mate, your wife will love them, my girlfriend would.


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

#758

shivan
Member
From: Nowra, south coast NSW
Joined: 15 February 2013
Posts: 1,030
Member
15 February 2017 08:31 am

Cheers Heatho, i am sure they would set off my eyes nicely kiss

No they are for a fellow prospector who asked if i could do something with a few of his finds.


Minelab GP Extreme 11" & 18" DD, 2 highbankers, EZ river sluice and a growing collection of sieves and pans

2 users like this post: Heatho, Wally69

#759

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 9,249
Moderator
15 February 2017 08:34 am

big_smile


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

#760

Digginholes
Member
From: Sydney nsw
Joined: 23 February 2014
Posts: 480
Member
15 February 2017 04:35 pm

A few stones from my last dig near black springs the biggest being 8ct but only partially see through but a few nice ones between 2-3.5ct and the rest around the 1ct mark1487136877_image.jpg

Last edited by Digginholes (15 February 2017 04:43 pm)

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#761

Gilly47
Member
From: Mount Hunter, NSW
Joined: 18 January 2015
Posts: 126
Member
18 February 2017 12:20 am

WoW gents I would be proud of any of those, hope to attack some green stuff at emmaville and torrington early March

Q; do U gents cut your own gems?? If so what what brand/ type of cutting machine do U recommend.

My financial adviser is keen to participate ATM


1 wife 1 dog and a sieve

#762

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 9,249
Moderator
18 February 2017 09:01 am

Nice stones mate, well done.


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

1 user likes this post: Digginholes

#763

Wally69
Member
From: Sydney
Joined: 13 December 2013
Posts: 2,292
Member
18 February 2017 09:59 am

Gilly47 wrote:

WoW gents I would be proud of any of those, hope to attack some green stuff at emmaville and torrington early March

Q; do U gents cut your own gems?? If so what what brand/ type of cutting machine do U recommend.

My financial adviser is keen to participate ATM

Yes I do, for me it is a hobby, so I started with looking for a fully kitted out secondhand setup as the primary consideration and landed on an agatemasta (single speed) unit, then after receiving some training on a gemmasta (variable speed) found a second hand unit with a performer as an extra. Both have different mechanical controls to get the cut right.

Recommend roll - I like aspects of both machines - so I would recommend getting one of each big_smile although I exclusively use the gemmast now as it has the ability to tune out a spiral (slight misalignment in the squareness of the main shaft to the lap) and the variable speed control.

I think the key to cutting a good stone is probably more about the understanding of how to adjust geometry and cutting/polishing techniques. Speed is enhanced by the acuracey and precision of the machine and the functional control of the adjusting devices. Lap speed control is a factor that affects polish speed, but I think it will take me a few more years to fully understand the relationship between stone types, polishing medium and lap speed.

In regards to new machines, I like the concept of precision depth cutting on rigid cut angles with a precisely tuned machine as I envisage there could be a significant speed advantage.

Good luck cool

Last edited by Wally69 (18 February 2017 10:39 am)

1 user likes this post: GypsyGoldAu

#764

Digginholes
Member
From: Sydney nsw
Joined: 23 February 2014
Posts: 480
Member
18 February 2017 12:01 pm

I don't cut my stones yet, maybe one day I would like too but for now I'm just digging them and hope to get a few cut by some body talented once I get a few more worthy of the cutters time

#765

shivan
Member
From: Nowra, south coast NSW
Joined: 15 February 2013
Posts: 1,030
Member
18 February 2017 12:54 pm

I have just started doing a bit of faceting within the last year, i started on a home made unit which was cheap. It had a lot of flaws but let me have a go at some basics and gave me an idea of what i was getting into. I am now using a second hand ultratec V2, it has a lot more precision than the home made unit and i am happy with it, for what i paid for it. But unless you are buying second hand i believe these can be expensive new as they are manufactured in the USA.
Most of the people at our lapidary club seem to use gemmasters, these seem to have a good reputation but can be long waiting periods for orders and parts from my understanding.

Check out this thread if you are thinking of buying new.
https://www.prospectingaustralia.com.au … p?id=20952


Minelab GP Extreme 11" & 18" DD, 2 highbankers, EZ river sluice and a growing collection of sieves and pans

#766

GypsyGoldAu
Member
Joined: 13 August 2015
Posts: 1,248
Member
18 February 2017 01:16 pm

Ok, you folks now got me interested... sad ( lol )

When you first begin 'cutting' your teeth on these machines the first time 'ever' using one...

Do you use your 'gems', or practice on, say, rounded river rocks of various composite, before 'risking' your gems?

Not sure what, if any, 'gems' are around here as i haven't gone down that path as yet, but i do like the idea of finding/cutting/mounting my own finds.

To date all i've had a go at was soldering bails and ear-ring backs to some of my <1.0g bits...

More practice time required, but my new venture is consuming most of my time atm. (Luckily much done from homebase big_smile )

PS... it was the linked thread above that got me reading this one lmao... wink

Gypsy

Last edited by GypsyGoldAu (18 February 2017 01:17 pm)


GGA Mobile Electroplating (Mil. Std_865d Certified) Industrial & Decorative.
glasses http://www.truelocal.com.au/business/gy … aryborough

#767

Wally69
Member
From: Sydney
Joined: 13 December 2013
Posts: 2,292
Member
18 February 2017 02:00 pm

Quartz, smokey quartz, opal crystal, topaz, amethyst and zircon are good starting mediums

The main issue with starting with an expensive stone is that you might need to recut it if you stuff it, loosing some size.

The good thing is, once you have become a grand master cutter, you can recut it and be marvelled by the improvement in your skills.

Of all the tools-of-the-trade I have acquired, getting lessons from a professional has been the best investment.

3 users like this post: GypsyGoldAu, Heatho, shivan

#768

GypsyGoldAu
Member
Joined: 13 August 2015
Posts: 1,248
Member
18 February 2017 02:23 pm

Wally69 wrote:

The main issue with starting with an expensive stone is that you might need to recut it if you stuff it, loosing some size.

That was exactly my thinking and what prompted me to ask thumbsup

Of all the tools-of-the-trade I have acquired, getting lessons from a professional has been the best investment.

Seems like any new endeavor encountered, tends to come with this sage advice...

Thank-You for the list of 'starters'...i'll have to delve deeper into my Gem book for local 'finds', and maybe hit up the local club.

Cheers
Gypsy

Last edited by GypsyGoldAu (18 February 2017 02:30 pm)


GGA Mobile Electroplating (Mil. Std_865d Certified) Industrial & Decorative.
glasses http://www.truelocal.com.au/business/gy … aryborough

#769

SneakyCuttlefish
Member
Joined: 24 June 2014
Posts: 114
Member
19 February 2017 09:26 am

17.7 carat topaz. Another practice cut on the new machine.
1487456748_img_3644_600x800.jpg

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#770

Heatho
Moderator
From: Sydney, NSW
Joined: 29 April 2013
Posts: 9,249
Moderator
19 February 2017 09:32 am

Fantastic stone mate, well done.


Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.

#771

Wally69
Member
From: Sydney
Joined: 13 December 2013
Posts: 2,292
Member
19 February 2017 10:48 am

Very nice SC cool

Just given the thought that I should hand craft some faceted arrowheads

1 user likes this post: SneakyCuttlefish

#772

SneakyCuttlefish
Member
Joined: 24 June 2014
Posts: 114
Member
02 March 2017 11:24 am

20.3 carat Topaz. Turning Triangle cut. Rough was 67 carats.

Major pain in the ass to do as there was an error in the Gemcad file. Had to re-cut the pavilion to get the right meet points. Lost a a few carats. But I prefer tight shape over a big personality. tongue

1488413181_img_3654_800x797.jpg

10 users like this post: rileymcsmiley, shivan, Heatho, B5MECH, Wishfull, Rockhound, 22shells, phantom83, Syndyne, Sodabowski

#773

Phil_In_Boots
Newbie
From: Ballarat Region, VIC
Joined: 14 November 2016
Posts: 7
Newbie
02 March 2017 04:52 pm

Very nice Sneaky! That 17.7ct Topaz looks fantatic, well done mate! thumbsup

#774

Wishfull
Member
From: Yorke Peninsla S.A., SA
Joined: 27 April 2016
Posts: 1,088
Member
02 March 2017 05:41 pm

SneakyCuttlefish wrote:

17.7 carat topaz. Another practice cut on the new machine.
https://www.prospectingaustralia.com.au … 00x800.jpg

My wife just melted looking at that stone.
Awsome mate thumbsup


Me..GOLD, GOLD...Boss Mmmm do you think we have the right man for the job ?
Turbo gold pan, Ancient 1996 Garret Scorpion gold stinger, Minelab GPX 4500, SDC2300, Detecnix wader Li pinpointer, home made pick, 750 mm Walco pick, understanding wife, most of the time.

#775

22shells
Member
Joined: 11 September 2014
Posts: 51
Member
03 March 2017 11:36 am

Inspired by the great stones on this thread, I have just had my first ever stone cut. Bit limited by being in SA, but managed to find a piece of clear quartz crystal about 2 inches long, that would have been about an inch in diameter- except it was split in half lengthways. Sorry no before photo. Pretty happy with how it turned out, weighed at 3.3 carats. Getting another one done that is more citrine colour. So thanks for the inspiration!
1488501345_p3020989.jpg

3 users like this post: shivan, Wally69, rileymcsmiley
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