ANTIQUE ART-DECO 1950'S NATURAL DIAMONDS & WHITE GOLD RING

Description

NO DEFECTS.
Weight 10.5 grams;
18k Gold;
Clear, Shiny Premium Quality Diamonds
Size 7
Dimensions: the ring is 17 mm wide and grades down to 9 mm at the bottom. The circles on the ring are of different diameters, from 21 mm to 25.5 mm. There are totally 7 circles with diamonds, of which 5 circles have one row diamonds and 2 larger circles have two rows of diamonds.
Resizing the ring to any size is easy as the bottom part, where the circles connect to each other, has no pattern to damage.
No missing diamonds or any other defects are on the ring.
Diamonds are of very good quality: the high color of diamonds ideally matches the color of the white gold on which they sit (they do not glisten yellow but white rainbow), and the 60x loupe doesn't show any insertions.
I know that they are from 1950s: my husband's parents were on diplomatic mission in Europe in the 1950s and my late mother-in-law had it on her finger on some pictures of 1950s diplomatic receptions and the wedding ceremony of Greek Princess Sofia and Spain Prince Juan to which they were officially invited in 1962.
I do not have any papers on value of the ring, but can obtain one from a certified appraiser.