KGK Gems (HK) Ltd. - Member of HKGMA

龍豐寶石制品廠 (Long Feng Jewellery Making Factory) - Member of HKGMA

景豐寶石有限公司 (King Classic Gems Mfy. Co. Ltd.) - Member of HKGMA

勞倫斯珠寶首飾有限公司 (Lorenzo Jewelry Ltd.) - Member of HKGMA

光華行 (Kwong Wah & Co.) - Member of HKGMA

歷祺寶石有限公司 (Lucky Gems Co. Ltd.) - Member of HKGMA

Lee Gems & Jewellery Co. - Member of HKGMA

東興貿易公司 (Lucoral Hong Kong Ltd.) - Member of HKGMA

Litto Gems Co. - Member of HKGMA

燦美寶石有限公司 (Luster Lapidary Ltd.) - Member of HKGMA