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The official weblog of M.S. Rau Antiques Jewelry Archives » The official weblog of M.S. Rau Antiques

...with color. More accurately, their value lies in their amazing lack of color. Golconda diamonds are graded as Type IIa, which means that the stone is totally void of nitrogen. Nitrogen is the element that gives......& Medical Various Fine Art Paintings Sculpture Jewelry Stone Colored Diamonds Colored Gemstones Diamonds Emerald Opal Other Pearl Ruby Sapphire Tanzanite Type Bracelets Brooches/Pins Earrings Men... Read More »