Antique PLATINUM high end earth mined London blue topaz/Diamond ring Sz 7~4.9g. This ring is beautiful! The ring is not stamped but have tested as platinum guaranteed. The ring consists of twelve 0.8mm diamonds, three 1.5mm diamonds and the topaz stone is 5mm. The total ring weight is 4.9 grams and is a size 7. All stones are present, great vintage condition. Please view all photos to assist with the description.