Learn ABout Buying Antique Diamonds
Buying antique diamonds can be a great way to get a unique piece of jewelry to mark a special occasion. These diamonds may already be set in a ring 100 years old or more and when buying jewelry of this age it is important to make sure that it is in good condition. That means that the ring should have a firm shank in case you need to resize it and the prongs which hold the jewelry should also be in good condition.

The 4 C's
Even with antique diamonds the 4C's are important.
Carat, color, cut and clarity will affect the value of the diamond you buy. It is also important to think about the maker of the jewelry. For example a solitaire diamond from Tiffany will be worth more than the same from someone less well known.
Understanding Settings and Cuts for Antique Jewelry
Diamond rings from the Victorian era may be set in yellow or rose gold and any antique ring will have a different cut from the cuts that are available today.
Some of the common cuts for antique stones include the rose cut which looks like the petals of a rosebud with a flat bottom and a domed crown. This diamond cut was first available in the 1500s and remained popular until the early 20th century. Rose cut diamonds may have between three and 24 facets.
The Old Mine -- also known as the cushion cut and the triple cut brilliant -- is considered the first modern brilliant cut. Other common antique cuts are the old European and the single.
Different Times, Different Techniques...
Up until the early 20th century diamonds were cut by hand in order to focus on providing the maximum carat weight rather than brilliance so they tend to exude a softer glow than modern stones.
Even with antique jewelry, it is important to have the stone properly appraised so you can be sure of its value and provenance.
You may also need to have it reset as antique rings tended to be much smaller and may not suit the modern form. A new setting can give the diamond a fresh look combining the best of ancient and modern techniques.
Note: As a precaution always check the credentials and experience of the jeweler who will reset your antique stone.

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