Sterling Silver Infinity Heart 7 Stone Diamond Pendant Necklace (1/4 carat) Also available in all other diamond clarity & all other metal kt. IGI Certified Diamond Heart Pendant Necklaces. 925 Sterling Silver Heart Pendant Necklaces. Best jewelry for all occasions and outfits. Elegantly packaged in a lovely jewelry box. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!