Diamond Exchange Houston has this 18k Tiffany Diamond Heart Pendant available for only $1800. This 16″ chain is made from 18k white gold and includes a .24 ctw diamond heart pendant. We only have 1 necklace/pendant like this so get it while it lasts. If you are interested in purchasing this or would like to see this in person then please fill out our contact form to schedule an appointment or call us today at 281-623-1105. Diamond Exchange Houston has a large selection of loose diamonds, engagement rings, and diamond jewelry.