A quartet of sparkling princess-cut diamonds crown the slender 18-karat band of an heirloom-quality ring that looks great worn solo or layered with a band. Total diamond weight: 0.46ct.. 18k gold/diamond. Imported. <a data-cke-saved-href="http://i.nordstromimage.com/images/store/boutique/4_14_Diamond_Guide/Diamond_Guide_71519.pdf" href="http://i.nordstromimage.com/images/store/boutique/4_14_Diamond_Guide/Diamond_Guide_71519.pdf" target="_blank">Diamond Guide.