Here are Todays Fab Spinel From Deals
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 FREE Diamond Gemstones Each New Mix Lot loose Gorgeous NATURAL GEMSTONES $11.99 Time Remaining: 9d 9h 43m Buy It Now for only: $11.99 Buy It Now | Add to watch list |
 UNHEATED 106 ctNATURAL ORANGE SPINEL OVAL CEYLON $3.45 (8 Bids) Time Remaining: 48m Bid now | Add to watch list |
 UNHEATED 064 ctNATURAL RED SPINEL OVAL CEYLON $1.79 (3 Bids) Time Remaining: 1h 15m Bid now | Add to watch list |
 NEW TOP QUALITY BEST PRICE VARIETY FACETED NATURAL LOOSE GEMSTONES BY THE CARAT $1.30 Time Remaining: 5d 18h 39m Buy It Now for only: $1.30 Buy It Now | Add to watch list |
 UNHEATED 056 ctNATURAL VIOLET SPINEL OVAL CEYLON $1.79 (3 Bids) Time Remaining: 1h 18m Bid now | Add to watch list |
 RARE 113 CTSRED NATURAL SPINEL CEYLON UNHEATED $79.00 Time Remaining: 29d 8h 21m Buy It Now for only: $79.00 Buy It Now | Add to watch list |
 11CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22482 $2.81 (4 Bids) Time Remaining: 1h 35m Bid now | Add to watch list |
 135CTNATURAL SPINEL OCTAGON RED AFRICA UNHEATED GN22484 $2.90 (5 Bids) Time Remaining: 1h 37m Bid now | Add to watch list |
 415ct BEST GRADE PURPLISH PINK HOT LUSTROUS SPINEL $199.99 Time Remaining: 29d 15h 58m Buy It Now for only: $199.99 Buy It Now | Add to watch list |
 136CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22485 $2.35 (2 Bids) Time Remaining: 1h 40m Bid now | Add to watch list |
 Bonus Size Sampler High Value LOTS NATURAL Mix GEMSTONES Precious Semi Precious $9.89 Time Remaining: 18h 1m Buy It Now for only: $9.89 Buy It Now | Add to watch list |
 117CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22487 $3.81 (3 Bids) Time Remaining: 1h 41m Bid now | Add to watch list |
 131CTNATURAL SPINEL OVAL AFRICA UNHEATED GN22488 $4.25 (4 Bids) Time Remaining: 1h 43m Bid now | Add to watch list |
 ELEGANT Best AAA Fancy Classic Flame Red Spinel Tanzania Antique Cushion 6x5mm $59.99 Time Remaining: 6d 7h 27m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Genuine Natural Gem Untreated Unheated OVAL CUT TOP RICH BLUE SPINEL $9.99 Time Remaining: 2h 2m Bid now | Add to watch list |
 ABSOLUTE BEAUTY 235CT REDDISH PINKY PEACH MOGOK SPINEL $645.00 Time Remaining: 5d 23h 58m Buy It Now for only: $645.00 Buy It Now | Add to watch list |
 JTV 6mm Round Brazilian Amethyst Checkerboard Cut Parcel Jewelry Television $8.98 Time Remaining: 2h 46m Buy It Now for only: $17.98 Buy It Now | Bid now | Add to watch list |
 JTV 8mm Round Diamond Cut Lab Created Ruby Loose Gemstone Jewelry Television $11.99 Time Remaining: 2h 54m Buy It Now for only: $23.98 Buy It Now | Bid now | Add to watch list |
 LIMITED QUANTITY Sale BEST NATURAL LOOSE GEMSTONES BY THE CARAT PRECIOUS MORE $3.79 Time Remaining: 18h 29m Buy It Now for only: $3.79 Buy It Now | Add to watch list |
 JTV Natural 9x7mm Oval Altai Aquamarine Loose Gemstone Jewelry Television $11.98 Time Remaining: 3h 10m Buy It Now for only: $23.98 Buy It Now | Bid now | Add to watch list |
 Certified From BGL Blue spinel VVS Grade 249ct $1,700.00 Time Remaining: 28d 21h 4m Buy It Now for only: $1,700.00 Buy It Now | Add to watch list |
 JTV Natural 8x8mm Trillion Aquamarine Loose Gemstone Jewelry Television $15.98 Time Remaining: 3h 19m Buy It Now for only: $31.98 Buy It Now | Bid now | Add to watch list |
 215 Cts 100 Natural Tajikistan Hot Pink Oval Cut Spinel 1 No Reserve $11.16 (4 Bids) Time Remaining: 3h 23m Bid now | Add to watch list |
 TOP QUALITY HUGE PARCEL FACETED NATURAL LOOSE GEMSTONES RARE PRECIOUS SEMI PREC $99.99 Time Remaining: 4d 17h 13m Buy It Now for only: $99.99 Buy It Now | Add to watch list |
 140ctNATURAL TOP RED SPINEL OVAL GEMSTONE CUT 2PCS $9.99 Time Remaining: 3h 28m Bid now | Add to watch list |
 BIG Jet BLACK Round SPINEL Natural loose Gemstone looks like Big Black Diamond $11.24 Time Remaining: 8d 19h 24m Buy It Now for only: $11.24 Buy It Now | Add to watch list |
 JTV 8x6mm Oval African Amethyst Loose Gemstone Parcel Jewelry Television $20.98 Time Remaining: 3h 44m Buy It Now for only: $35.98 Buy It Now | Bid now | Add to watch list |
 630CTOVAL PINK RASBERRY SPINEL NATURAL BEAUTIFUL $9.99 Time Remaining: 3h 45m Bid now | Add to watch list |
 SENSATIONAL LUSTER HUGE 339CT CERTIFIED MOGOK SPINEL $695.00 Time Remaining: 5d 23h 55m Buy It Now for only: $695.00 Buy It Now | Add to watch list |
 330CTOCTAGON RED SPINEL NATURAL BEAUTIFUL $5.99 Time Remaining: 3h 47m Bid now | Add to watch list |
 GEM TOOL New Dichroscope for Gem Testing with Quality Case $45.00 Time Remaining: 7d 14h 8m Buy It Now for only: $45.00 Buy It Now | Add to watch list |
 515CTOVAL PINK RASBERRY SPINEL NATURAL BEAUTIFUL $9.99 Time Remaining: 3h 47m Bid now | Add to watch list |
 615CTOVAL BLUE VIOLET SPINEL NATURAL BEAUTIFUL $7.99 Time Remaining: 3h 48m Bid now | Add to watch list |
 OVAL 251 CTSLIGHT ORANGISH PINK NATURAL SPINEL CEYLON $215.00 Time Remaining: 26d 14h 29m Buy It Now for only: $215.00 Buy It Now | Add to watch list |
 105 Cts 100 Natural Tajikistan Hot Pink Cushion Cut Spinel 1 No Reserve $1.04 (2 Bids) Time Remaining: 4h 1m Bid now | Add to watch list |
 NEW TRIAL SIZE High Value LOTS NATURAL Mix GEMSTONES Precious Semi Precious $7.19 Time Remaining: 18h 35m Buy It Now for only: $7.19 Buy It Now | Add to watch list |
 Natural Gem 147ct 8x65mm Oval WELL CUT Reddish Pink SPINEL SRI LANKA $3.35 (5 Bids) Time Remaining: 4h 20m Bid now | Add to watch list |
 115ct Oval Cut Natural Purple Spinel $9.90 Time Remaining: 4h 29m Bid now | Add to watch list |
 Portable Polariscope with Daylight LED Sodium Light SourceGemology Students $111.96 Time Remaining: 4d 3h 33m Buy It Now for only: $111.96 Buy It Now | Add to watch list |
 124ct Trillion Cut Natural Purple Spinel $9.90 Time Remaining: 4h 35m Bid now | Add to watch list |
 WINSOME Best AAA Classic Flame Red Spinel Tanzania Antique Cushion 6x5mmRARE $59.99 Time Remaining: 6d 8h 12m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Jewelry Television 8x8mm Cushion Cut Peruvian Pink Opal Loose Gemstone JTV $8.99 Time Remaining: 4h 37m Buy It Now for only: $17.98 Buy It Now | Bid now | Add to watch list |
 JTV Natural 14x14mm Square Cushion Cut Brazilian Smoky Quartz Loose Gemstone $11.98 Time Remaining: 4h 39m Buy It Now for only: $23.98 Buy It Now | Bid now | Add to watch list |
 320 CARAT NATURAL GEM STONE MIX FLAWED MIXED LOOSE LOT LOOSE MIXED GEMSTONES $39.99 Time Remaining: 28d 10h 39m Buy It Now for only: $39.99 Buy It Now | Add to watch list |
 TOP QUALITY NATURAL GEMSTONE TOP QUALITY OVAL SHAPE Untreated SWEET PINK SPINEL $0.99 Time Remaining: 4h 40m Bid now | Add to watch list |
 PAIR BEAUTIFUL NATURAL REAL GEM STONE TOP QUALITY OVAL SHAPE PURPLE PINK SPINEL $11.99 Time Remaining: 2d 12h 15m Buy It Now for only: $11.99 Buy It Now | Add to watch list |
 JTV Natural 5x5mm Cushion Cut Amethyst Loose Gemstone Set of 4 From Brazil $8.99 Time Remaining: 4h 41m Buy It Now for only: $17.98 Buy It Now | Bid now | Add to watch list |
 130ct Stunning Pear Cut Natural Purple Spinel $9.90 Time Remaining: 4h 50m Bid now | Add to watch list |
 205CT Glistening Rare Round Natural Spinel 10011340 $45.00 Time Remaining: 28d 9h 51m Buy It Now for only: $45.00 Buy It Now | Add to watch list |
 1530 CTALLURING BLUE SPINEL OVAL CEYLON $12.99 Time Remaining: 4h 54m Bid now | Add to watch list |
 WONDERFUL 165cts 2pcs Natural PURPLE REAL SPINEL OVAL UNHEATED $19.99 Time Remaining: 28d 20h 32m Buy It Now for only: $19.99 Buy It Now | Add to watch list |
 530CTOVAL PINK RASBERRY SPINEL SRILANKA GEMSTONES $9.99 Time Remaining: 4h 57m Bid now | Add to watch list |
 1585 CTEXQUISITE BLUE SPINEL OVAL CEYLON $12.99 Time Remaining: 4h 58m Bid now | Add to watch list |
 FREE SPINEL PARCEL Russian Chrome Diopside Mix loose Natural Gemstones Parcel $17.09 Time Remaining: 12d 19h Buy It Now for only: $17.09 Buy It Now | Add to watch list |
 660CTOVAL PINK RASBERRY SPINEL SRILANKA GEMSTONES $9.99 Time Remaining: 4h 58m Bid now | Add to watch list |
 Rare African 125ct 11x8mm Pear Shape Black Opal Single Loose Gemstone FREE SHIP $31.96 Time Remaining: 23d 9h 2m Buy It Now for only: $31.96 Buy It Now | Add to watch list |
 680CTOVAL BLUE VIOLET SPINEL SRILANKA GEMSTONES $9.99 Time Remaining: 4h 59m Bid now | Add to watch list |
 390CTOVAL RED SPINEL SRILANKA GEMSTONES BEAUTIFUL $7.99 Time Remaining: 5h Bid now | Add to watch list |
 275cts 3pcs TOP LOADED RED UNHEATED SPINEL OVAL $299.00 Time Remaining: 5d 19h 30m Buy It Now for only: $299.00 Buy It Now | Add to watch list |
 1690CTCHARMING BLUE SPINEL CUSHION CEYLON GEM $19.99 Time Remaining: 5h 17m Bid now | Add to watch list |
 OVAL 250 CTSLOVELY PINK NATURAL SPINEL CEYLON $199.00 Time Remaining: 17d 14h 20m Buy It Now for only: $199.00 Buy It Now | Add to watch list |
 Natural Gem 161ct 75x7mm Cushion GOOD CUT Titanium Purple SPINEL SRI LANKA $5.50 (3 Bids) Time Remaining: 5h 36m Bid now | Add to watch list |
 Natural Gem 121ct 75x6mm Oval VERY SPARKLING Titanium SPINEL SRI LANKA $0.99 (1 Bid) Time Remaining: 5h 43m Bid now | Add to watch list |
 186ct Gorgeous Oval Cut Natural Reddish Pink Spinel $299.00 Time Remaining: 28d 5h 5m Buy It Now for only: $299.00 Buy It Now | Add to watch list |
 265CT AWESOME AA OVAL PURPLISH PINK UNHEATED SPINEL $42.99 Time Remaining: 5h 44m Bid now | Add to watch list |
 Spinel Color Change 400 cts 13930 190 $190.00 Time Remaining: 26d 19h 6m Buy It Now for only: $190.00 Buy It Now | Add to watch list |
 Instant Gemstone Collection 100 Different Gemstones Tray with Lid Diamonds $75.00 Time Remaining: 5h 49m Buy It Now for only: $99.00 Buy It Now | Bid now | Add to watch list |
 315CTOCTAGON RED SPINEL SRILANKA GEMSTONES BEAUTIFUL $7.99 Time Remaining: 6h 1m Bid now | Add to watch list |
 113ctSPLENDID Best AAA Classic Flame Red Spinel Tanzania Antique 6x5mmRARE $59.99 Time Remaining: 6d 6h 20m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 590CTOVAL BLUE VIOLET SPINEL SRILANKA GEMSTONES $7.99 Time Remaining: 6h 1m Bid now | Add to watch list |
 GemsVillage 276 Ct Very rare Vs natural violet Spinel from Asia $16.00 Time Remaining: 1d 4h 13m Buy It Now for only: $16.00 Buy It Now | Add to watch list |
 240CTPEAR RED SPINEL SRILANKA GEMSTONES BEAUTIFUL $3.99 Time Remaining: 6h 1m Bid now | Add to watch list |
 104CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22346 $1.04 (2 Bids) Time Remaining: 6h 4m Bid now | Add to watch list |
 14BLACK SPINEL 3 4MM FACETED RONDELL GEMSTONE BEADS $7.99 Time Remaining: 28d 3h 21m Buy It Now for only: $7.99 Buy It Now | Add to watch list |
 Beautiful 131ct Purple Spinel Video $19.99 Time Remaining: 6h 6m Bid now | Add to watch list |
 197 CT SHOCKING BEAUTIFUL CUSHION HOT PINK SPINEL $299.00 Time Remaining: 23d 23h 8m Buy It Now for only: $299.00 Buy It Now | Add to watch list |
 128CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22348 $0.99 (1 Bid) Time Remaining: 6h 8m Bid now | Add to watch list |
 118CTNATURAL SPINEL OVAL PINK AFRICA UNHEATED GN22351 $3.00 (3 Bids) Time Remaining: 6h 11m Bid now | Add to watch list |
 NATURAL EARTH MINED GEMSTONE OVAL CUT SHAPE TOP QUALITY UNHEATED RED PINK SPINEL $13.99 Time Remaining: 1d 10h 53m Buy It Now for only: $13.99 Buy It Now | Add to watch list |
 WINSOME LOT 1038ctTop 100Natural Dusky Red Pink Color Rough Spinel Tanzania $9.99 Time Remaining: 6h 12m Bid now | Add to watch list |
 Excellent Blue Green Alexandrite Round 40mm $49.99 Time Remaining: 20d 10h 20m Buy It Now for only: $49.99 Buy It Now | Add to watch list |
 Fabulous 134ct Very Rare Namya Red Spinel Video $34.99 Time Remaining: 6h 14m Bid now | Add to watch list |
 Natural Gem 149ct 75x6mm Oval SPARKLE Light Purplish Blue SPINEL SRI LANKA $1.04 (2 Bids) Time Remaining: 6h 16m Bid now | Add to watch list |
 SPINELMULTI COLOR 25ctFACET ROUGH 75 4ctSP A13natural earth crystal born $29.94 Time Remaining: 20d 17h 46m Buy It Now for only: $29.94 Buy It Now | Add to watch list |
 Fabulous 2ct Very Rare Blue Spinel Video $79.99 (1 Bid) Time Remaining: 6h 19m Bid now | Add to watch list |
 690CT Mysterious Gem You figure What It Is 10080436 $200.00 Time Remaining: 28d 22h 25m Buy It Now for only: $200.00 Buy It Now | Add to watch list |
 11085CTROUGH GENUINE RED SPINEL MADAGASCAR UNTREATED NATURAL GEMSTONE 100 A $0.99 (1 Bid) Time Remaining: 6h 27m Bid now | Add to watch list |
 1129CTROUGH GENUINE RED SPINEL MADAGASCAR UNTREATED NATURAL GEMSTONE 100 AG $0.99 Time Remaining: 6h 27m Bid now | Add to watch list |
 150ct BEST GRADE TOP LUSTER BLUE UNHEATED NATURAL SPINEL $89.99 Time Remaining: 8d 16h 1m Buy It Now for only: $89.99 Buy It Now | Add to watch list |
 1082CTROUGH GENUINE RED SPINEL MADAGASCAR UNTREATED NATURAL GEMSTONE 100 AG $0.99 Time Remaining: 6h 27m Bid now | Add to watch list |
 153CTNATURAL SPINEL CUSHION AFRICA UNHEATED GN23260 $14.99 Time Remaining: 29d 47m Buy It Now for only: $14.99 Buy It Now | Add to watch list |
 JTV Natural 6x4mm Oval African Amethyst Loose Gemstone Parcel Jewelry Television $11.98 Time Remaining: 6h 29m Buy It Now for only: $17.98 Buy It Now | Bid now | Add to watch list |
 172 CtDazzling Oval Pink Spinel SUPREME 1611 $14.99 Time Remaining: 6h 33m Bid now | Add to watch list |
 115ct HIEND LUSTROUS BEST GRADE RARE VIVID PINK RED BURMESE SPINEL $69.99 Time Remaining: 9d 17h 48m Buy It Now for only: $69.99 Buy It Now | Add to watch list |
 IMPRESSIVE 450 ctBIG UNHEATED 100NATURAL TOP PURPLE SPINELTanzania NR $20.50 (7 Bids) Time Remaining: 6h 41m Bid now | Add to watch list |
 2mm 8mm Lab Created Dark Blue 113 Spinel Rounds $2.99 Time Remaining: 16d 7h 46m Buy It Now for only: $2.99 Buy It Now | Add to watch list |
 106 ctCHARMING GEM 100NATURAL TOP NOBLE RED SPINEL MOGOK RARE NR $0.99 Time Remaining: 6h 47m Bid now | Add to watch list |
 187 CtSuperior Red Spinel Oval Natural 2807 $19.99 Time Remaining: 6h 51m Bid now | Add to watch list |
 Twinkling Full Fire Oval Cut Natural Genuine Gemstone Rich Red SPINEL Untreated $15.99 Time Remaining: 1d 15h 15m Buy It Now for only: $15.99 Buy It Now | Add to watch list |
 260 CtShinning Oval Purple Spinel Natural Size 9 x 75 mm3342 $34.99 Time Remaining: 7h 9m Bid now | Add to watch list |
More Great Information on Spinel From:
how do you tell spinel from diamond?
The easisest way is to determine the hardness. Diamond is the hardest mineral (Moh's hardness 10) and will scratch corundum (hardness 9). Spinel will be softer (i think typically about hardness 8, but there are different vairieties). Spinel is usually also strongly coloured.
A more complex way would be by x-ray diffraction.