Platinum ring with diamonds and sapphires Possibly France ca. 1925 The ring has a brilliant cut diamond of 1,25 cts in millegrain-setting, surrounded by 16 sapphires and eight brilliant cut diamonds, also in millegrain-setting. Four more diamonds on the shank.
A Highly Unusual Eternity Ring, circa 1910. This unique antique engagement ring from the early 1900s is designed as two interlaced stylized triangles set with calibre cut rubies and rose cut diamonds in platinum topped gold milgrain settings. The triangles form an openwork six pointed star held by a three wire rose gold band. The center of the star is accented with an old European cut diamond (approx 0.15 ct). A very elegant Belle Epoque engagement ring.
Engagement Rings - Ruby Diamond Eternity Ring c. 1910
https://www.bkgjewelry.com/sapphire-pin-brooch/969-18k-yellow-gold-diamond-blue-sapphire-brooch-pendant.html by Goph Albitz. | From a hand-fabricated collection set colored gemstones and diamonds in a dance among sterling silver and 18k gold