Idocrase 
Feldspars can be challenging, but rewarding to a lot of cutters. Most of the problems seem to crop up when polishing so don't be afraid to throw the rulebook out the window. What works "every time" for one cutter, might turn out a nightmare to another. That said, many feldspars are relatively inexpensive so play with some of the less costly varieties to get an idea of what will work for you when you take on some of the more high end ones.  Pete
FIC1.7.69
7.69ct
12x10x8mm
$8.69usd
Buy this
FIC3.7.12
7.12ct
12x8.5x7.5mm
$8.42usd
FIC4.12.74
12.74ct
19x10x7.5mm
$11.12usd
FIC5.8.11
8.11ct
12.5x8x8mm
$8.89usd
Buy this
Oregon Sunstone
This is the sunstone that the cutting houses snap up before we (the individual cutters) ever get a chance to see it. Even better, these are all hand picked by yours truly so you're buying the top of the line :) Pricing on these reflects the size of the color blob (Can't think of any better name for it but I'm open to suggestions) so bigger blob = bigger price/ct. Just about all of the first listings should get around a one to two ct finished stone with good cutting. Maybe even a little bigger :) Also, I added a third pic so you could get a better idea of the stone as I tried to roll it through an A, B, and C axis - Pete
OS2.11.05
11.05ct
14.5x13.5x8mm
$80.11usd
OS3.15.93
15.93ct
22.5x11x9mm
$115.49usd
Buy this
OS5.20.74
20.74ct
20x16x10.5mm
$134.81usd
Buy this
OS7.9.92
9.92ct
18x9.5x6mm
$71.92usd
Buy this
OS8.13.41
13.41ct
20x10.5x10mm
$107.28usd
Buy this
OS17.10.19
10.19ct
17x12.5x9mm
$84.07usd
Buy this
OS21.12.56
12.56ct
16.5x13.5x11mm
$91.06usd
Buy this
OS24.23.63
23.63ct
22.5x15x14mm
$277.65usd
Buy this
OS28.27.49
27.49ct
26x18x13.5mm
$424.05usd
Buy this
OS30.21.15
21.15ct
21x14x9.5mm
$222.08usd
Buy this
OS31.51.92
51.92ct
29x17.5x16mm
$800.00usd
Buy this
Double click here to add text.
OS34.32.91
32.91ct
21.5x19.5x17mm
$460.74usd
Buy this
OS35.21.47
21.47ct
22.5x15x12.5mm
$257.64usd
Buy this
OS38.20.62
20.62ct
20.5x16.5x12.5mm
$288.68usd
Buy this
SS3.14.29
14.29ct
18x13.5x8.5mm
$103.60usd
Buy this
SS4.21.16
21.16ct
18x15.5x12mm
$163.99usd
Buy this
SS5.9.71
9.71ct
14x11x9mm
$67.97usd
SS6.16.62
16.62ct
20x14.5x10.5
$145.43usd
Buy this
SS7.15.33
15.33ct
25x11x9mm
$111.14usd
Buy this
SS8.15.43
15.43ct
22x11.5x10.5mm
$115.73usd
Buy this
SS11.9.63
9.63ct
14x12.5x7.5mm
$65.00usd
Buy this
SS13.12.74
12.74ct
14.5x14.5x7.5mm
$95.55usd
SS13.24.68
24.68ct
25x12x11mm
$197.44usd
Buy this
SS14.12.41
12.41ct
15x11x10mm
$96.18usd
Buy this
SS19.17.79
17.79ct
20x13.5x11.5mm
$137.87usd
Buy this
SS20.18.17
18.17ct
20.5x15.5x11mm
$140.82usd
Buy this
SS21.17.25
17.25ct
17x15x11mm
$133.69usd
Buy this
SS25.12.58
12.58ct
18x10.5x10.5mm
$91.21usd
Buy this
4.24ct Sunstone cut in a Long & Steele "Choval" design by Troy Richardson. This stone measures approx 13x9x7mm. 
OS1.28.77
28.77ct
22x14.5x14.5mm
$289.14usd
Buy this
OS36.27.17
27.17ct
21.5x18x12mm
$273.26usd
Buy this
SS16.14.15
14.15ct
18.5x11.5x11.5mm
$127.35usd

Buy this
OS3.13.15
13.15ct
12.5x11x9mm
$105.20usd
Buy this
OS2.22.14
22.14ct
22x12x10.5mm
$222.51usd
Buy this
OS35.21.47
21.47ct
22.5x15x12.5mm
$193.23usd
Buy this
OS5.10.25
10.25ct
20x10.5x9mm
$61.50usd
Buy this
OS37.26.51
26.51ct
20x16.5x14.5mm
$384.40usd
Buy this
OS19.21.12
21.12ct
25x12x11mm
$212.26usd
Buy this
>                                  >


>                                  >


>        Seconds,           >
​          

>    Beginner and         >


>        Practice             >


>         Stones              >


>                                  >


>                                  >


>                                  >

2SS1.15.18
15.18ct
17x15x7mm
$15.18usd
Buy this
2SS2.27.24
27.24ct
22.5x17x9.5mm
27.24usd
2SS5.17.30
17.30ct
15x12.5x8mm
$17.30usd
2SS7.11.44
11.44ct
19.5x12x8mm
11.44usd
1SS1057
10.57ct
17x11x9mm
$73.99usd
1SS1286
12.86ct
15x13x11mm
$96.45usd
Buy this
1SS1373
13.73ct
20x13x8mm
$102.98usd
Buy this
1SS1505
15.05ct
18x12x11mm
$120.40usd
1SS1656
16.56ct
15x15x12.5mm
$132.48usd
1SS1670
16.70ct
20x13x13mm
$133.60usd
Buy this
1SS2096
20.96ct
21x14x11mm
$178.16usd
Buy this
1SS3393
33.93ct
22.5x17x15mm
305.73usd
Buy this
1SS3885
38.85ct
24x19x14mm
$388.50usd
Buy this
2SS3143
31.43ct
26x18x15mm
$392.88usd
Buy this
2SS2742
27.42ct
22x15x13mm
$260.49usd
Buy this
2SS2942
29.42ct
21x20x13.5mm
$294.20usd
2SS3879
38.79ct
22x21x13.5mm
$387.90usd
Buy this
2SS3431
34.31ct
23x22x13.5mm
$360.26usd
Buy this
Update 5/4/18: An outfit named Gemcollector has been selling something named Lehrite. They described it (before they got called out) as "whenever we enhance a gem from our mine, we revert back to calling it Oregon Sunstone". This has been changed on their website but the question remains, What are they describing when they use the word enhance? The last time I remember someone enhancing feldspar, it was called andesine. Remember that one? Anyway, I want to take the opportunity to let all of you know that the material below, offered by westerngem is NOT "enhanced" in any way. I get this fine Sunstone rough right from the mine owners and will NEVER knowingly offer a faux, enhanced, lab created or diffusion treated sunstone.