Today corundums of gemstone quality of all colors except red are
called sapphire. Red varieties are called rubies. The various colors
of sapphires are qualified by description, green sapphire or yellow
sapphire. The coloring agents in blue sapphire are iron and titanium.
The color is very stable against light and heat. The most desired
color is a cornflower-blue. There is no definite demarcation between
ruby and sapphire.
Physical Properties: Sapphire Color: Blue
in various hues, colorless, pink, orange, yellow, green, purple and
black; Sapphire Moh's Hardness: 9.0; Sapphire
Density: 3.95-4.03; Sapphire Chemical Composition:
Aluminium Oxide; Sapphire Transparency:
Transparent to Opaque; Sapphire Refractive
Index: 1.762-1.788; Sapphire Dispersion:
0.018; Sapphire Pleochroism:
Blue; Definite; dark blue, green blue.
Colored Sapphires: These
different types of sapphires and their colors are because of traces
of titanium, chromium, vanadium and iron found in these gemstones.
Each sapphire uses the preface of its color for the name so you have
the yellow sapphire, blue pink, purple, green, white and orange
sapphire and the red sapphire is of course called as Ruby. One of the
most exotic sapphires that come in orange-pink shade is called as
Padparadscha sapphire. Learn
More About Sapphire Colors.
| Rings: Sapphires are
widely used in rings such as sapphire wedding rings, anniversary
rings and wedding rings; also in sapphire earrings; sapphire pendants
and sapphire bracelets along with diamonds. We have an inspirational
collection of rings with sapphires in platinum and yellow gold. Look
for a rich blue color sapphire with a light shade in rings with
sapphire and sapphire jewelry.