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Come distinguere un opale solido da una  doppietta o tripletta?

How to distinguish a solid opal from a doublet or triplet?

OpaleMio cuts and sells only solid opals, excluding doublets and triplets from its collection. To understand why, consider the following information.

First of all, it should be emphasized that the value of a solid opal is far higher than that of a doublet, and even more so than that of a triplet. Doublets and triplets, as attractive and colorful as they may be, are inexpensive and significantly less valuable than a solid opal, as they are essentially reconstructions.

Solid opal: A solid opal is a gem cut and polished from a rough opal as it occurs naturally. Solid opal is completely natural and can be divided into:

SOLID 1 - only multicolored precious opal, or a portion of multicolored opal deposited naturally on a layer of colorless opal (potch);

SOLID 2 - a layer of colored opal deposited naturally and irregularly on an underlying rock such as iron shale (Boulder Opal);

SOLID 3 - veins or flakes of precious opal mixed into the host rock (Opal Matrix).

Solid opal thus worked is considered a precious or semi-precious gem and is a satisfying and long-lasting asset.

Let's now see how to distinguish doublets or triplets from a natural solid opal.

Doublets: A thin layer of precious opal is glued onto a backing that can be, at best, dark colorless opal (potch), but also black plastic or another type of worthless stone. Doublets, however well-made, have a significantly lower market value than solid opal and can become unglued or deteriorate over time.

Triplet: A very thin layer of opal is sandwiched and glued between a plastic or clear quartz lens and a dark support. The composition has a low commercial value and the workmanship is prone to deterioration.

The photo clearly shows some doublets and a triplet. In both cases, the natural opal layer is very thin.

When purchasing an opal, carefully consider this information to ensure you're fully aware of what you're buying. In our online store, we reiterate, you'll find only solid opal. Sometimes it's difficult to identify doublets or triplets if they're already mounted in rings, earrings, or pendants, as it's impossible to examine the entire stone once mounted. OpaleMio recommends that anyone seeking a solid opal first purchase the gem and then have it mounted by a specialized goldsmith.

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