I have used a large, delicate Cubic Zirconia tear drop connected to a round Swarovski pearl. I have put it onto a cubic zirconia detailed bail. All material used is rose gold plated brass. I have put it onto a fine rose gold plated brass, tarnish resistant fine chain.
# length of Necklace comes is 16 or 18 inches with 2 inch extension chains and pendant drop is 2 inches or 5 cms