Physical Properties

Refund if not satisfied within 7 day inspection period after receipt. Overnight delivery of in stock items.

We can custom order or manufacture whatever you want from our worldwide partners! If you have a favorite design we can make it in solid Platinum, 18kt or 14kt white, yellow,  two-tone or rose Gold, Vermeil gold, or sterling Silver. Just send us your artwork or picture.

Home Demantoid Garnets Tsavorite Garnets Tourmalines Emeralds Sphenes Mandarin Orange  Garnet Ruby Rubellite Spinels Color Change Garnets Alexandrites Sapphires Tanzanites Topaz Apatites Diamonds Opals Other Gemstones Quartz Rings Semi Mounts Nicole Earrings Necklaces Pendants Bracelets Pins Costume Jewelry Site Map Keyword Search

Precious Gems Wholesale

 

Gem Density L Density H RI Low RI High Dispersion Moh Absolute Double Refractive Birefringence
Diamond 3.521 3.555 2.417 2.419 0.044 10 1500 none  
Demantoid 3.7 4.1 1.88 1.94 0.057 7.25   none  
Sphene 3.52 3.54 1.843 2.11 0.051 5.25      
Spessartite 4.12 4.18 1.79 1.82 0.027 7.25   none  
Ruby 3.97 4.05 1.762 1.788 0.018 9 400    
Sapphire 3.95 4.03 1.762 1.788 0.018 9 400 .008  
Alexandrite 3.7 3.78 1.746 1.763 0.014 8.5      
Tsavorite 2.82 3.32 1.734 1.759 0.028 7      
Tanzanite 3.35   1.691 1.7 0.03 6.75   .010  
Apatite 3.16 3.23 1.628 1.648 0.013 5 48 .003  
Rubellite 2.82 3.32 1.614 1.666 0.017 7.25   none  
Tourmaline 2.82 3.32 1.614 1.666 0.017 7.25      
Topaz 3.49 3.57 1.609 1.643 0.014 8 200 .010  
Emerald 2.67 2.78 1.565 1.602 0.014 8   .006  
Opal 1.98 2.5 1.37 1.520   6   none  
Quartz 2.5 2.7 1.544 1.553   7

100

.009 0.009
Steel file           6.5      
Window glass           5.5      
Pocket knife           5      
Copper penny           3      
Fingernail           2      
Gold/Silver           2.5-3      
Platinum           4-4.5      

Home Demantoid Garnets Tsavorite Garnets Tourmalines Emeralds Sphenes Mandarin Orange  Garnet Ruby Rubellite Spinels Color Change Garnets Alexandrites Sapphires Tanzanites Topaz Apatites Diamonds Opals Other Gemstones Quartz Rings Semi Mounts Nicole Earrings Necklaces Pendants Bracelets Pins Costume Jewelry Site Map Keyword Search

Phone: 303-883-8000                    email: PreciousGemsWholesale@ymail.com

Address: 5082 E. Hampden Ave, Suite #138  Denver, Colorado  80222

Florida Branch:  3959 Van Dyke Rd, Suite #243  Lutz, Florida 33558

 

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