A collection of gemstones from around the world, fashioned in various styles, both faceted and en cabochon. Many of the gemstones have supporting videos to provide an enhanced visual presentation of the gem.
Precious stones, by tradition, describe a limited number of gemstones named as, diamond, emerald, ruby & sapphire. Named so because they are considered rare and posses superior properties to all other gemstones, subsequently named semi precious stones. The main properties considered superior are colour, hardness and durability. Although there are semi precious stones with exceptional properties, in colour (example - tourmalines), high durability (example - jade) and a high level of hardness (example - chrysoberyl). Over time the line between the two categories has become blurred, especially with the increased exposure of rare, very high value gemstones such as - imperial jade, Alexandrite, Tanzanite, paraiba tourmaline, chrome tourmaline and imperial topaz. In addition there are very rare semi precious stones with almost unmemorable names that fetch incredible prices on the collectors market.
Semi precious stones include an extensive range of beautiful gemstones from richly coloured quartz and garnet varieties to the light sparkling beryl varieties such as aquamarine. Well known gemstones include - amethyst, citrine, garnet, topaz, peridot, aquamarine and opal, to name a few. Recently, lesser known semi precious stones have become more visible on the gem market, for example kunzite (spodumene), morganite (beryl) and scapolite are now more readily available. Semi precious stones are generally of lower value than precious stones, as many varieties are found in abundance and have lesser properties (as mentioned above). Whereas rare varieties and fine examples of semi precious stones fetch very high prices, historically only associated with precious stones.
See the Ruby Mill A to Z Gemstone Guide for more general information on gems, together with their properties and common treatments. Also see Birthstones to match each month of the year to a specific gemstone, based on the Modern System (includes alternate semi precious stones for each month, where applicable).
AAA grade Amethyst
10x8 mm Oval
Fine Grade Golden-Yellow Citrine
Swiss Blue Topaz in AAA Grade
10 x 8 mm Oval
Rhodolite Garnet in Checkerboard Style Cut
Pink Sapphire, a beauty amongst Precious Stones.
Natural Orangey-yellow Sapphire from Sri Lanka
Sapphire with a rich purple colour
1.59 carat weight
Large Fancy Shaped Citrine in AAA Grade
24.92 Carat weight
Oval-cut Peridot Gemstone in mid-green colour
2.82 carat weight
Fancy Sapphire Square Cushion
2.56 carat weight
Dark Blue Sapphire, Natural Gemstone
2.28 carat weight
Ethiopian opal displaying a multiple play of colour.
7.05 carat weight