Martin s Jewelers is a fifty year jewelry store in Brandon, Florida that specializes in diamonds and fine jewelry. Appraisals, diamonds, gemstones, jewelry, metals, wedding rings amp watches. We buy old, broken jewelry and scrap gold!!! We also: Design Custom jewelry! Jewelry repair and remounts Watch repair Our Diamonds sold by GIA grading system: Diamond is the hardest substance known and given a value of 10 in the Moh's hardness scale, devised by the German mineralogist Friedrich Mohs (1773-1839) to indicate relative hardness of substances on a rating scale from 1 to 10. Its hardness, exhibited in its resistance to scratching, is not a constant quantity, but varies in every diamond with the crystallographic direction, being greater on surfaces parallel to the octahedron than on those parallel to the dodecahedron planes. Hardness on the same face or surface varies with the direction of the cut. Ease of cutting is affected also by the presence or absence of crystalline twinning in a diamond. Diamonds from river beds are said to be harder than those from pipe mines, such diamonds are in fact not harder, but tougher, that is, they show greater resistance to breakage, as in the course of being transported by water, stones with small cleavage cracks or inclusions tend to break along the lines of weakness so that the resultant fragments are virtually free of structural flaws. We do Appraisals! All appraisals have a purpose and function. When a valuer begins the process of appraising an article of jewelry they must determine the reasons for the appraisal so they can take the best approach to estimate the value. There are many ways to appraise jewelry and in turn there are many uses for the valuation. Replacement or actual cash value valuations are used for insurance, comparison, hypothetical, damage, and barter appraisals. Fair market value valuations are used for auction, antique, collateral, casualty, estate, probate, donation, and in some states divorce appraisals. Liquidation values are used for bankruptcy appraisals. We Specialize In: Artcarved diamond rings Wedding rings & sets Pulsar & Seiko watches FREE diamond classes Home of fine gems since 1954 55 years as Brandon's most trusted jewelry store