The Ultimate Guide To 結婚對戒
The Ultimate Guide To 結婚對戒
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柔和的波浪線條設計彷彿是兩人溫柔地握著手。隨著線條搭配的碎鑽，為女戒增添華麗感。名稱取自結婚女神之名，將守護兩人的幸福直到永遠。
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Most diamonds originate from the Earth's mantle, and many of the portion discusses These diamonds. Even so, there are other resources. Some blocks of the crust, or terranes, have been buried deep sufficient given that the crust thickened so they experienced ultra-higher-stress metamorphism. These have evenly distributed microdiamonds that present no signal of transport by magma.
Substantial-purity diamond wafers 5 cm in diameter exhibit great resistance in one direction and ideal conductance in the other, developing the possibility of applying them for quantum info storage.
Diamonds are dated by analyzing inclusions using the decay of radioactive isotopes. Dependant upon the elemental abundances, you can consider the decay of rubidium to strontium, samarium to neodymium, uranium to guide, argon-40 to argon-39, or rhenium to osmium. Those people present in kimberlites have ages ranging from one to 3.five billion many years, and there can be various ages in the same kimberlite, indicating multiple episodes of diamond formation. The kimberlites them selves tend to be young.
Popular variations consist of engagement rings for Women of all ages that attribute a notable Heart stone such as solitaire and halo rings. Pavé, twist band and milgrain models can also be in-demand from customers designs. Lab designed diamond engagement rings are developing in attractiveness.
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Fantastic aspects like actual filigree are the distinction between an heirloom and an ordinary piece of jewellery.
As with any product, the macroscopic geometry of the diamond contributes to its resistance to breakage. Diamond features a cleavage airplane and it is thus much more fragile in a few orientations than Many others. Diamond cutters use this attribute to cleave some stones just before faceting them.[36] "Effects toughness" has become the main indexes to evaluate the quality of synthetic industrial diamonds.
N. W. Ayer & Son, the marketing agency retained by De Beers during the mid-20th century, succeeded in reviving the American diamond marketplace as 求婚鑽戒 well as firm developed new markets in international locations wherever no diamond custom experienced existed prior to. N. W. Ayer's marketing integrated solution placement, promoting centered on the diamond product or service alone instead of the De Beers brand, and associations with celebs and royalty. Without having promoting the De Beers manufacturer, De Beers was promotion its competition' diamond products and solutions as well,[116] but this wasn't a priority as De Beers dominated the diamond sector throughout the 20th century. De Beers' industry share dipped temporarily to second position in the worldwide sector down below Alrosa during the aftermath of the worldwide financial disaster of 2008, all the way down to fewer than 29% concerning carats mined, rather then bought.
Several approaches for determining synthetic diamonds could be carried out, dependant upon the method of production and the colour of your diamond. CVD diamonds can ordinarily be discovered by an orange fluorescence. D–J coloured diamonds is often screened from the Swiss Gemmological Institute's[a hundred and sixty] Diamond Spotter.
Although diamonds on the planet are unusual, They may be quite common in Place. In meteorites, about 3 per cent with the carbon is in the shape of nanodiamonds, acquiring diameters of some nanometers.
The hardness of diamond and its ability to cleave strongly rely on the crystal orientation. As a result, the crystallographic construction on the diamond being Slash is analyzed applying X-ray diffraction to pick the optimal cutting directions.
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