It is with great sadness I'd like to announce Dr. Hanneman passed away on December 12, 2020. His legacy will live on forever!
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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Tue Mar 31, 2020 7:27 pm 
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Oops - that square cushion sunstone is 8.89 mm, not 6.06 mm (that is the depth...).

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Wed Apr 01, 2020 11:11 am 
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OK, new day, new gems! Or "Another day, another dopey sunstone post..."

For the next, I had two similar color and shape of rough, so I decided to cut a matched pair of ovals (best cut for the smaller). Only down side was the extra loss of weight from the larger rough, but a set of possibly matching 2.5+each sunstones!!!

One started as 7.98 ct, finished at 2.63 ct (33%), 12.06 x 8.02 mm oval.
The other was 10.29 ct rough, finished 2.70 ct (26%), 12.02x8.02 mm, slightly lighter color.

The cut is the L&S Lazy Oval with some modifications.

Sorry about the slightly blurry gem pictures...

That's all for now, folks! The funnest ones are yet to come!


Attachments:
File comment: 2190904 Sunstone Rough, 7.98 ct
2190904 SN-2019-014c 7_98 (600x450).jpg
2190904 SN-2019-014c 7_98 (600x450).jpg [ 101.14 KiB | Viewed 906 times ]
File comment: 2190905 Sunstone Rough, 10.29 ct
2190905 SN-2019-009Rd 10_29 (600x450).jpg
2190905 SN-2019-009Rd 10_29 (600x450).jpg [ 91.11 KiB | Viewed 906 times ]
File comment: 2190904 Oregon Sunstone Oval, 2.63 ct, 12.06 x 8.02 mm
2190904 SN-2019-014Fa (600x450).jpg
2190904 SN-2019-014Fa (600x450).jpg [ 111.81 KiB | Viewed 906 times ]
File comment: 2190905 Oregon Sunstone Oval, 2.70 ct, 12.02 x 8.02 mm
2190905 SN-2019-009Fa (600x450).jpg
2190905 SN-2019-009Fa (600x450).jpg [ 112.02 KiB | Viewed 906 times ]

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Fri Apr 03, 2020 11:07 am 
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An in-between item... a recent blue zircon recut (crown only)

This is one of my favorite gems to refurbish - they start out as worn dogs, and finish as bright beauties!

Touched up the girdle on a 3,000 MB (had to leave a flat so fits in mounting), repolished the top with 1,200 sint. for any cutting, polished with 50K on zinc.

Started at 1.86 ct, finished at 1.76 ct. :40 to do the work.

Did another oval (4.95 ct) since, mild damage that required only the 50K/Zn.


Attachments:
File comment: Blue Zircon, damaged gem, 1.86 ct.
2020-03-20 Bl Z Ruf.jpg
2020-03-20 Bl Z Ruf.jpg [ 53.17 KiB | Viewed 860 times ]
File comment: Blue Zircon, 1.76 ct finished weight.
2020-03-20 Bl Z fin.JPG
2020-03-20 Bl Z fin.JPG [ 74.57 KiB | Viewed 860 times ]

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Fri Apr 03, 2020 1:14 pm 
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Stunning transformation! =D>

Martine


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Fri Apr 03, 2020 5:19 pm 
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Love the sunstones but that blue zircon is now fabulous, fantastic job!

Jim


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Sun Apr 05, 2020 11:59 am 
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Thanks for the words, folks. I do love those blue zircs... Had someone show up with a 13 mm round one time, quite the dazzler!!!

Ok - it's been a few days so here are a couple more (sigh) Oregon Sunstones.

There were two pieces best suited for rounds, but I wanted something with a bit more zing than just another round brilliant. Also, knowing this stuff is a bit tender for setting in rings, I wanted to give the owner some motivation to put it in a more protected environment when set.

The first is "just another" orangish pink. Started out at 7.95 ct. It finished with a rose cut (apex cut) crown published in 1997 as "Bright rose", 9.60 mm, 2.81 ct. (35% recovery) Just under 2 hours.

The second is a light green/light orange dichroic piece, somewhat like an andalusite, with an additional red spot. For this one I didn't want to mix the colors if possible, so I stretched the pavilion (try that on a round...) I guess it worked... started at 12.16 ct (odd shaped/included rough), finishing as a 9.51 mm round, at 2.61 ct (21%). Also at just under 2 hours.


Attachments:
File comment: Oregon Sunstone rough, 7.95 ct
2190906 SN-2019-114Rb 7_95 (600x399).jpg
2190906 SN-2019-114Rb 7_95 (600x399).jpg [ 90.52 KiB | Viewed 802 times ]
File comment: Oregon Sunstone, 9.60 mm, 2.81 ct.
2190906 SN-2019-114Fb (600x450).jpg
2190906 SN-2019-114Fb (600x450).jpg [ 118.66 KiB | Viewed 802 times ]
File comment: Oregon Sunstone dichroic rough, 12.16 ct
2190907 SN-2019-111Rb 12_16 (450x600).jpg
2190907 SN-2019-111Rb 12_16 (450x600).jpg [ 99.07 KiB | Viewed 802 times ]
File comment: Bright Rose mod pavilion
2190907 design.JPG
2190907 design.JPG [ 72.72 KiB | Viewed 802 times ]
File comment: 2190907 Oregon sunstone light dichroic, 9.51 mm, 2.61 ct
2190907 SN-2019-111Fa (600x450).jpg
2190907 SN-2019-111Fa (600x450).jpg [ 131.78 KiB | Viewed 802 times ]

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Sun Apr 05, 2020 12:57 pm 
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Beautiful sunstones! What a clever idea with the pavilion of the dichroic sunstone - how about publishing it?

Martine


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Tue Apr 07, 2020 2:49 am 
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That keeled design is giving me a bit of confidence to try it myself with some closed C tourmaline...
Makes me wonder if you could redirect the light at the ends to follow the keel with high enough angles, might not be possible on feldspar.


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Tue Apr 07, 2020 11:10 am 
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Here is the original design, and a possible redo for a closed C. Not sure how it will perform, just messed with the angles on the two end sets. The 3rd set in on the pavilion (P3) may still cause some mixing... Use at your own risk........


Attachments:
2190907 design pic.JPG
2190907 design pic.JPG [ 84.86 KiB | Viewed 748 times ]
2190907 design pic beta.JPG
2190907 design pic beta.JPG [ 85.36 KiB | Viewed 748 times ]

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Wed Apr 08, 2020 10:51 am 
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Nice work Allan. I really like the P4 & P5 adjustments for closed-C you made.

Thanks for the shares.

Happy Faceting!

John


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Wed Apr 08, 2020 2:37 pm 
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Thanks very much for sharing your designs, Allan.

Martine


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Thu Apr 09, 2020 5:59 pm 
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Wowzers Allan, that first sunstone is great. Great balance of patterns on that stone. Is that a public available design? would love to try it.
Really love the center radiating reflections in contrast to the "arrows" around the perimeter. Very pretty design.


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Thu Apr 09, 2020 6:48 pm 
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Here is the first design...

http://www.facetdiagrams.org/database/files/pc01603b.html

I love it most for low RI stuff like the lemon opal that was mined in Idaho. Can't find the picture right now, but it is BRIGHT!


Attachments:
Bright.JPG
Bright.JPG [ 56.75 KiB | Viewed 638 times ]

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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Fri Apr 10, 2020 8:47 am 
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A friend in Australia sent me a piece of Topaz that he found in a creek bed. I cut a Paradise Round Brilliant that I optimized for Topaz. I chose to frost the P3 "pinwheel"... something that works well with colored CZ, but not overly impressive with natural Topaz.

Pic below is not in natural light, as we haven't seen the sun in a week. :roll:

Thanks for the peek.

Attachment:
B4 and AFTER TOPAZ.jpg
B4 and AFTER TOPAZ.jpg [ 83.58 KiB | Viewed 609 times ]


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 Post subject: Re: Before and After – Post YOUR Transformation Pics
PostPosted: Wed Apr 15, 2020 7:47 pm 
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OK - onward with the Sunstone trove!

This next one is based off a somewhat common shape of Sunstone rough I see - a rhombohedron. Seems there is direction of cleavage that can lead to these pieces. Had to clean up some thin areas on the sides.

A bit of schiller, but a fun piece matching the cut to the rough on GemCad.

Started at 12.56 ct, ended up at 2.79 ct, 9.8 x 6.9 mm, about 2 hours and 22% recovery.


Attachments:
File comment: Oregon Sunstone rough, 12.56 ct
2190908 SN-2019-110Rb 12_56 (600x403).jpg
2190908 SN-2019-110Rb 12_56 (600x403).jpg [ 102.32 KiB | Viewed 544 times ]
File comment: 2190908 Oregon Sunstone, 2.79 ct
2190908 SN-2019-110Fa (600x450).jpg
2190908 SN-2019-110Fa (600x450).jpg [ 125.06 KiB | Viewed 544 times ]

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