Sparkling Gemstones For Your Jewelries

Agate Pendant Handmade 925 Sterling Silver Natural Hand Cut
The sparkle of a gemstone is determined by how much light it is able to reflect back, this is generally referred to as the refractive index of the gemstone. Each natural, synthetic and imitation gemstone will usually have some refractive indices.

For natural gemstones, the cut (that is, how symmetric and proportional the gem is) of the gemstone will also affect how much it sparkles too, hence you will want to look at how well a natural gemstone is cut, that is, its cut grade in order to choose the most sparkling natural gemstones for your use when you want some sparkles. Natural gemstones with the same refractive index and cut grade should generally have the same level of sparkles.

Diamondis actually not the only natural gemstone that sparkles, some other natural gemstones sparkles too and some may actually sparkle more than a diamond gemstone too, you can simply look at the refractive index for each gemstone to know this. In addition to this, some synthetic and imitation gemstones too may also have more sparkle than a diamond gemstone.

Another attribute that may also contribute to or enhance the maximal sparkle of a gemstone is its fire.

A gemstone refractive index is a measure of how well the gemstone reflect light, some gemstones may have more than one refractive indices (indexes).


Refractive Index

(a).   Natural Gemstones

Hematite   2.94 - 3.22
Diamond   2.417 - 2.419
Melanite   1.88 - 1.94
Sphene   1.843 - 2.11
Zircon   1.81 - 2.024
Ruby   1.762 - 1.778
Sapphire   1.762 - 1.778
Alexandrite   1.746 - 1.763
Chrysoberyl  1.746 - 1.763
Azurite   1.72 - 1.848
Spinel   1.712 - 1.762
Kyanite   1.71 - 1.734
Idocrase   1.7 - 1.723
Tanzanite  1.691 - 1.7
Diopside   1.664 - 1.73
Kunzite   1.66 - 1.681
Peridot   1.65 - 1.703
Danburite   1.63 - 1.636
Apatite   1.628 - 1.649
Andalusite   1.627 - 1.649
Tourmaline    1.614 - 1.666
Hemimorphite   1.614 - 1.636
Prehnite   1.611 - 1.669
Turquoise   1.61 - 1.65
Topaz   1.609 - 1.643
Howlite   1.586 - 1.605
Seraphinite   1.576 - 1.599
Emerald   1.565 - 1.602
Aquamarine   1.564 - 1.596
Beryl   1.562 - 1.602
Goshenite   1.562 - 1.602
Morganite   1.562 - 1.602
Labradorite   1.559 - 1.57
Charoite    1.55 - 1.561
Citrine   1.544 - 1.553
Amethyst  1.544 - 1.553
Ametrine   1.544 - 1.553
Onyx   1.544 - 1.553
Iolite   1.542 - 1.578
Jasper  1.54
Amber   1.539 - 1.545
Tiger's Eye   1.534 - 1.54
Quartz   1.53 - 1.553
Agate   1.53 - 1.54
Carnelian   1.53 - 1.54
Chalcedony   1.53 - 1.54
Chrysoprase   1.53 - 1.54
Sunstone   1.525 - 1.548
Amazonite   1.522 - 1.53
Pearl   1.52 - 1.69
Ammolite   1.52 - 1.68
Moonstone   1.518 - 1.526
Lapis Lazuli  1.5
Coral   1.486 - 1.658
Calcite   1.486 - 1.658
Sodalite   1.48
Moldavite   1.48 - 1.54
Chrysocolla   1.469 - 1.57
Obsidian   1.45 - 1.55
Fluorite   1.434
Opal   1.37 - 1.52


Jade
Jadeite  1.6 - 1.627
Nephrite   1.6 - 1.627


Garnet
Demantoid   1.88 - 1.94
Spessartite   1.79 - 1.82
Almandine   1.77 - 1.82
Grossularite   1.734 - 1.759
Mali   1.734 - 1.759
Tsavorite   1.734 - 1.759
Hessonite   1.73 - 1.75
Color Change  1.73 - 1.756
Rhodolite   1.72 - 1.76
Pyrope   1.72 - 1.756
Star  1.72 - 1.756


(b).  Synthetic Gemstones

Moissanite   2.65 - 2.69


(c).  Gem-Like Imitation Gemstones

Strontium Titanate   2.41
Cubic Zirconia  2.15 - 2.18
Glass   1.50 - 1.925
Acrylic glass   1.490 - 1.492

Rhinestones, Swarovskicrystals, Pandorabeads and other type of crystals are generally made from some form or type of glass for jewelry.


You May Also Like:

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Jewelry As An Investment - Before You Buy That Valuable Jewelry Piece
Jewelry Quality – Choosing The Best Type Of Jewelries In Terms Of Quality
Valuable Jewelries: The Metals And Gemstones That Make Your Jewelry Valuable


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