This Loose Opal is in stock and ready to dispatch. The colour play is superb! These Opals, know as 'Opal in Matrix', meaning that the Opal section is still within the host rock it formed in, known as matrix.
Please enquire for other types, cuts and weights of stones.
- Shape: Oval
- Carat weight of 11.89ct
- Dimensions: 16.3mm L x 13.2mm W x 8.5mm D
- Colour: Orange predominantly with play of green and blue.
- Clarity: Translucent center area as the opal is in Matrix
- Fluorescence: Please enquire
- Conflict Free & Ethically Sourced
The Clarity of the stone refers to the relative freedom from inclusions, these are characteristics that can be seen within the stone that were there when the stone formed in nature up to 350 million years ago. Different factors determine a stones clarity grade for example; number of inclusions, size of inclusions, position, brightness and nature/type. The best stones are Flawless (F) and the "worst" are 'Included (I) or otherwise politely termed Pique (PK).
The Cut of the diamond is the lowest grade of; Proportions, Symmetry and Polish. A badly proportioned stone will not allow total internal reflection of light and will not be as bright (sparkle). There are excepted ranges of proportions and as long as the stone is within these it will look beautiful. Symmetry basically means how well all the facets (individual cuts) are aligned and Polish tells us how well the facets have been cut by polishing lines or burn marks.
Some stones fluoresce under Long Wave UV light. Since UV light is an integral part of daylight, a level of fluorescence within the stone can affect the colour of a stone or make its appearance more colourless when it is tined. The grading system runs from None down to Strong. Most diamonds tends to fluoresce blue under this light.
Carat is the weight of the stone. With a well cut stone the carat weight can give an estimate of size (mm). 1 carat is the equivalent of 0.2g. And with a well cut 1ct stone it should be 6.5mm diameter (for Diamond). This is considered a large stone. Some stones have a larger spread, what we mean by this is they have a larger surface area/diameter but will be shallow.
By buying your own loose gemstone you can choose how to set it. For ideas browse the internet and I can offer you a quote to have it set how you like. I am a qualified Diamond Gemmologist with the Gemmological Association of Great Britain and can answer any questions you might have regarding Diamonds.
Please contact me if you require a certain grade, size/weight or stone to fall within a certain budget.
For security and safe delivery reasons I may cancel an order if the address is noted as a restricted location by courier services, a form of ID may also be required on delivery. Please contact me if you are abroad or have any questions.