1 Carat Ruby & Diamond 10K Yellow Gold Heart Necklace. The stones rich red hue lends this gorgeous pendant an added touch of drama. A vibrant heart-shaped created ruby is the centerpiece of a sculpted, diamond-accented yellow gold setting. Product Details. Pendant: 10kt Yellow Gold. Finish: Polished. Weight: 1.1 grams. Length: 9/16 inch. Width: 1/4 inch. Chain: 10kt Yellow Gold. Spring-Ring:. Finish: Polished. Length: 18 inch. White Diamond:. Clarity: I3. Color: G I. Total Weight: 0.01 carat TDW. Quantity: 1. Shape: Round. Created Ruby:. Cut: Heart. Color: Red. Weight: 0.01 carat TGW. Length: 6 mm. Width: 6 mm. Metal Stamp: 14 kt Material: Gold