SEDA GEMS

CITRINE

Hardness   7

Origin Brazil

Treatment   None

This Citrine has been cut from a parcel of rough we got in brazil. Beautiful colour and fantastic cutting.

Citrine is any quartz crystal or cluster that is yellow or orange in color. Although often cut as a gemstone, citrine is actually somewhat rare in nature. Most citrines on the market have been heat treated. Specimens of low grade, inexpensive amethyst are often cooked at high temperatures to produce the more profitable orange yellow citrine. Citrines whose colors have been produced by artificial means tend to have much more of an orange or reddish caste than those found in nature, which are usually a pale yellow. Much of the natural citrine may have started out as amethyst but heat from nearby magmatic bodies may have caused the change to citrine.

Type 1 Gemstones

The following gemstones are typically inclusion free, even minor inclusions detract from their value.

Diamond, Amethyst, Beryls(Aquamarine,Morganite), Citrine, Smoky Quartz, topaz, Chrysoberyl, Kunzite, Tanzanite, green Tourmaline, and Blue Zircon

IF   Internally flawless under extreme magnification (Very rare)

F   Flawless

VVS   Minute inclusions under 10x; invisible to the unaided eye

VS   Minor inclusions under 10x; usually invisible to the unaided eye

SI1   Noticeable inclusions under 10x; usually visible to the unaided eye

SI2   Noticeable inclusions under 10x; usually quite visible to the unaided eye

I1   prominent- moderate affect on appearance or durability

I2   prominent - severe affect on appearance or durability

I3   prominent- severe affect on beauty, transparency or durability

Type 2 Gemstones

Gemstones that normally have small inclusions that do not detract from value.

Alexandrite, Andalusite, Iolite, Peridot, Rhodolite, Ruby, Sapphire, Spinel, Tourmaline, Garnet, Amethyst, Red Zircon, Tsavorite; Blue, Orange, Purple, Fluorite.Yellow and Parti-colored Tourmaline

F   Flawless

VVS   Minor inclusions under 10x; usually invisible to the unaided eye

VS   Noticeable inclusions under 10x; often invisible to the unaided eye

SI1   Obvious inclusions under 10x; visible to the unaided eye

SI2   Obvious inclusions under 10x; very apparent to the unaided eye

I1   prominent - moderate affect on appearance or durability

I2   prominent - severe affect on appearance or durability

I3   prominent - severe affect on beauty, transparency or durability