Large Lima Quartz & 9k Gold Ring Size L. The Lima quartz is a beautiful and unusual lemony yellow colour. It is fully hallmarked for 9ct gold with "375", the Birmingham assay mark, the makers mark "QVC" and date letter. The large stunning Lima quartz gemstones are round cut it is set in a fantastic 9ct gold setting. It weighs 3.5 grams. Size L. Excellent condition.