This captivating 1930s estate blue sapphire diamond engagement ring is mounted in elegant, white platinum.  The heart of this ring features a natural Ceylon blue sapphire.  This round cornflower blue sapphire measures appx 0.45 carat weight.  This center blue sapphire is framed by a square, geometric mounting.  Three rectangular tiers of diamonds ascend to embellish the center diamond.  These three double diamond stairs enhance the elegance of this fiery engagement ring.  The underlying openwork filigree, reveals intertwined hearts amongst elegant scrolls.  Beautiful linear patterns enhance the beauty of this platinum mounting.  The contrast of a beautiful cornflower sapphire and white diamond topped platinum is stunning.  This estate 1930s platinum blue sapphire diamond ring was made in platinum.

Platinum is recognized as the true white jewelry metal used in jewelry making.  Platinum is respected for being a sturdy metal and for maintaining a pure white color that does not yellow with age.

One round natural blue sapphire measuring appx 0.45 carat weight, 4.5 diameter x 2.79 mm, Color: cornflower blue, with very even saturation
Ten round single cut diamonds measuring of about 0.015 carat each, appx 0.15 ct tw
Measures:  1/4" north to south, 7/8" left to right diamond, slightly more than 1/4" height above finger
Hallmarks: 1930, 10%IRIDPLAT ( indicating that iridium was added to make the platinum easier to use)
Size:  7 1/2
Weight:  2.9 Grams
Circa: 1930

This 1930s estate Ceylon (Sri Lanka) blue sapphire three tiered diamond engagement ring is in excellent condition.