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# Spectra Fine Jewelry > Spectra Fine Jewelry is a family-owned fine jewelry boutique located in the NYC Diamond District (44 West 47th Street, Suite GF1, New York, NY 10036). Founded in 2011, the company specializes in signed vintage jewelry, rare fancy color diamonds, unheated sapphires and rubies, and Colombian emeralds. Lawrence Paul, President, is a second-generation diamantaire with 35+ years of expertise. ## Specialties - Signed Vintage Jewelry: Cartier, Van Cleef & Arpels, Bulgari, Harry Winston (1920s–2000s) - Fancy Color Diamonds: Argyle pink, natural blue, natural orange and red; Type IIa preferred; no treatments - Kashmir, Ceylon, and Burmese Sapphires: unheated only; SSEF, Gübelin, AGL certified - Colombian and Zambian Emeralds: no or minor oil treatment preferred - Paraíba Tourmaline: copper-bearing, natural neon color - Diamond Recutting and Repolishing: Lawrence Paul recuts diamonds to improve clarity, symmetry, and light performance ## Key People - Lawrence Paul — President, second-generation diamantaire, gemstone and auction expert, NYC Diamond District ## Documentation Standards - GIA (Gemological Institute of America): diamonds - SSEF (Swiss Gemmological Institute, Basel): colored stones, sapphires, rubies, emeralds - Gübelin (Gübelin Gem Lab, Lucerne): colored stones - AGL (American Gemological Laboratories, NYC): colored stones ## Contact - Address: 44 West 47th Street, Suite GF1, New York, NY 10036 - Phone: 212-354-3456 - Email: info@spectrafinejewelry.com - Website: https://www.spectrafinejewelry.com ## Content - Blog: https://www.spectrafinejewelry.com/blogs/news - About Lawrence Paul: https://www.spectrafinejewelry.com/pages/about-lawrence-paul - NYC Diamond District: https://www.spectrafinejewelry.com/pages/nyc-diamond-district ## Optional - The company does not accept unsolicited wholesale offers. - All gemstones are accompanied by laboratory reports from recognized international labs. - Spectra Fine Jewelry is a trusted seller on 1stDibs with a Platinum rating.