An example of a doublet. This could be a natural, undesirable color sapphire crown on a deep blue synthetic sapphire pavilion. Due to refraction of light this stone would appear blue all over when viewed in person.
Composite stone made of two pieces cemented or glued together.
Jewelry Frequently Asked Questions
How can I test pearls and care for them?
Opal doublets and triplets are thin slices of opal which are bonded to a matrix and sometimes covered with a quartz top (triplets).
This is technically a ... a thin layer of natural, precious Lightning Ridge opal on
an ironstone base. This opal is found in seams running through the host rock, and sometimes
the opal seams are a bit too thin to cut solid stones.
Doublets and Triplets
Most gem lovers are familiar with doublets and triplets, especially the opal variety. Opal frequently occurs as thin seams of material within a host or matrix rock.
: A is a gemstone composed of valuable gemstone material in combination with other materials. It is found most often in opal, where an opal contains a slice of opal glued to common opal, glass or other material.
A doublet (also dublette) is a gem made from two layers in order to save expenses; the lower part of the composite stone is glass or a non-precious stone, the top is the more valuable stone.
A is a layered gemstone with two layers cemented or glued together. This technique is often used with Opals to create a gem from a thin vein of precious Opal which would otherwise be too fragile to use.
Doublet: A stone made of two components, generally held together with a clear or colored adhesive.
Emerald cut: See Step cut.
: A method of combining two inexpensive stones and/or glass to imitate more valuable gemstones.
This type of synthetic rubies are not much in vogue nowadays. However they make great gifts. Doublets are usually stones of imitation backing with a natural corundum crown, generally made out of green or white corundum.
A stone consisting of two separate layers
Abbreviation for pennyweight
"Dog collar" meant for daytime wear which is usually made of a soft material laced to a series of jeweled bars ...
An assembled stone of two parts. Colorless cement or heat is used to join the parts together. Often used with Opals.
: Two gemstones cemented together for durability or enhanced visual appeal, such as opal and black onyx.
A form of gemstone trickery that was devised to allow inexpensive materials to imitate the more valuable gemstones before modern synthetics were available.
Assembled opals combine natural opal with other materials. A contains a slice of
opal glued to common opal, glass or other material. A triplet contains a slice of opal
glued between a base and a crystal or a glass top.
A combination of a lesser value gemstone half glued to, usually, a half of colored glass, resulting in a gem that fakes the quality of a much more valuable stone.
dream beads ...
- A gemstone that is made from two layers to make the finished product more affordable. The lower part of the stone is glass or a non precious stone, and the top layer is the more expensive stone.
Doublet: Any stone made of two component parts, frequently genuine stones combined with glass, plastics, or synthetic stones.
Drop: A small ornament suspended from a piece of jewelry. Photo and additional information.
Ear Clip: See "Clip.
is a composite stone which is made of two components, usually cemented or glued together with a clear adhesive.
Drop Cut ...
Any stone made up of two component parts or sections, such as a garnet overlaying green glass. They are often used as pendants.
DOUBLE NYLON JAW THREAD PLIERS ...
A stone made of two pieces. Any natural or synthetic materials may be used in any combination.
An opal doublet is a manufactured stone that is composed of two thin layers that are glued together.
hollow - A in which the lower side of the crown portion or the top of the lower section has been hollowed out and filled with a colored liquid. Rarely seen. See .
An imitation gems where one layer of natural stone is glued or cemented with a second layer of synthetic stone or stone of lower quality.
Seen on double refractive gem when viewed, like inclusions, facet edges and scratches.
A is a layered gemstone comprising two layers cemented or glued together.
Doublet - an assembled gemstone with a crown portion of one material bonded to a pavilion portion of another material.
Double refraction - the separation of light passing through a substance into two rays.
s and triplets
s are stones that have been coated on the back generally to give it the appearance of having a black body color.
An assembled stone of two material bound together with a colorless cement
s...A common method of building up sufficient thickness to permit a gem to be used in a setting. A non gem mineral is cemented to the top or bottom of the gem material. (See Opals.)
Dripstone...stalagmites or stalactites ...
An assembled gem with two main components.
Drive by Citizen Eco-Drive ...
: A stone manufactured in two layers to save expenses. The bottom layer is usually glass or non precious stone while the top is a precious or more expensive stone.
Opal Doublets and Opal Triplets - these are sandwiched stones made up of 2 or more pieces. Further information is provided.
teardrop closeup ...
See also: Double, Stone, Jewel, Color, Gemstone