I promised you more 2013 Tiffany & Co Blue Book, and I intend to deliver on my promises. If this batch has a theme, it’s rich, glorious color.

To dive right into the color: how luminous are these two gemstone rings? They look like they’re on fire from within. Both setting are platinum adorned with diamonds; one features an unenhanced cushion-cut yellow sapphire and the other, an orange sapphire.

This necklace is one of my favorites from this year’s Blue Book and (unsurprisingly) another piece that shows a strong Art Deco influence. The tassel of gloriously green tsavorites dangles from a platinum and diamond cap suspended from a platinum and diamond chain. I could not be more into this color.

Speaking of marvelous color…feast your eyes upon these earrings. They feature oval spessartites glowing within scrollwork of diamonds in platinum. I say infinite amounts of yes to these.

A quick jump back to cool colors for this fantastic bracelet. It’s composed of five rows of tanzanite beads, perfectly finished by a clasp of diamonds and milgrained platinum at the end.

This is the Shell necklace by Jean Schlumberger for Tiffany & Co.. It’s made of 18ct gold and is adorned with cabochon rubellite. How fantastic is that detail? Exactly what I’d expect from a Schlumberger piece.

Last but not least, we have this bangle with spessartites, tsavorites, yellow sapphires, fancy sapphires and diamonds in 18ct white gold. I think it looks like Autumn leaves.

All images and info in this post are thanks to the Jewellery Editor’s wonderful feature on the Tiffany & Co Blue Book Collection.