GUILD Gemstone Laboratory is composed of Mr Charles Carmona was founded in Los Ange-les in July 1980. For more than 40 years, GUILD Gem Lab has always been committed to theresearch, identification, science popularization and promotion of color gemstones, and hasrich experience and massive achievements in the field of building a standardized system inthe color gem market.
     Depending on the profound academic research background and a large number of researchon the origin of color gemstones and market identification data, GUILD Gem Lab has built anenterprise database covering all common gem categories in the market. Focus, accumulation,cohesion and breakthrough. From the start-up appraisal institution on the east coast of thePacific Ocean to the authoritative appraisal brand based in the Asia Pacific and radiatingaround the world, every development node of GUILD Gem Lab resonates with the internationalcolor gem industry on the same frequency.
       互諾科技公司成立為2005年，始終致力于在信息技術(shù)領(lǐng)域發(fā)展，是企業(yè)網(wǎng)絡(luò)服務(wù)的推薦品牌?；ブZ客戶群主要集中在中國大陸及港、澳、臺等地區(qū)?；ブZ科技憑借創(chuàng)新的網(wǎng)站策劃理念,精湛的網(wǎng)站制作技術(shù),以及豐富的互聯(lián)網(wǎng)營銷經(jīng)驗，2005年至今已擁有客戶20000多。
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       用戶經(jīng)過長時間的咨詢及比較，除了朋友的大力的推薦，互諾還提供眾多的成功案例，大大增加了合作的信心，最終在眾多網(wǎng)站建設(shè)公司中選擇了互諾科技的網(wǎng)站建設(shè)服務(wù)