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Learn about this Danish mid century diamond dog collar by Bent Exner on today's Mondays with Mattern! Shop the necklace >

Learn all about brown diamonds: their value, where they're from, what they make Cristina think of, on today's Monday's with Mattern! Browse Brown D...

Learn about vintage watches with Cristina! Browse new, vintage and pre-owned watches >

Find out why Cristina thinks this is the most wearable cocktail jewelry, on today's Mondays with Mattern! Browse Retro Jewelry >

Browse new, estate and antique ruby jewelry >

On today's Mondays with Mattern, Cristina is showing us just how beautiful and wearable Roberto Coin jewelry is...and why we should all be buying e...

Browse Georgian jewelry >

On today's Mondays with Mattern, we are looking at this very cool Asprey of London necklace and earrings suite. The color combination of turquoise ...

On today's Mondays with Mattern, we are looking at these special Bulgari ruby and sapphire earrings from the 1980s. The color combination is the ep...

Estate Buccellati jewelry has a special beauty! Buccellati pieces are all still handmade in Italy, and are characterized by meticulous surface engr...

Today we are discussing moonstone, which is one of June's birthstones along with pearl and alexandrite. Moonstone is a variety of feldspar that is ...

In celebration of Pride, we are focusing on the ultimate rainbow gemstone: opal! Play-of-color: an optical phenomenon in gemstones which results wh...