1.6 grams. This 10k white gold necklace features a stunning black diamond with a white diamond halo, perfect for occasions like engagements, weddings, and anniversaries. The slide closure adds a touch of elegance to the design, while the natural white diamonds and eye-clean gemstones ensure a high-quality finish. The necklace is 18 inches in length and is crafted with a cable chain for a sleek look, making it a beautiful and luxurious piece of fine jewelry that is sure to make a statement.