EF COLLECTION Diamond Arc Stud Earring in Metallic Gold. 14k yellow gold. Made in Hong Kong. Post back closure. 0.12ct diamond embellished bar and diamond drop. Measures approx 0.25 dangling. EFCR-WL143. EF-61073. Founded by Emily Faith in 2010, EF Collection features delicate pieces that can be worn and enjoyed every day with an elegant, sexy, and feminine feel. The brand focuses on the use of 14k golds with handset diamonds and precious stones. While each piece stands alone, they are enhanced when mixed, matched, layered and stacked.