☆ Both the necklace and earrings are 10-10.5mm ☆ I purchased this after searching for large, nearly perfectly round freshwater pearls. I have another necklace with the same specifications, which I am using, so I am offering this unused item. The freshwater pearls I use are also large, but these have a luster that shows a rainbow effect like Akoya pearls. The photos appear champagne pink due to the warm lighting, but the actual color is white with a clear, glossy finish. You can see from the earrings that they are almost perfectly round. I feel the necklace is of the same level as the earrings (this is my personal opinion). ★☆ Above all, freshwater pearls are entirely nacre. They are the perfect lake jewels to be passed down for generations. Although unused, there are slight pressure marks on the surface of the case due to the moquette material, so please refrain from purchasing if you are sensitive to such details. tsuyatama brand product New, unused item Necklace (43cm), earrings, and a heart keeper included The following is from the website description: Pearl color: White Genuine pearls: 10-10.5mm Length: Approximately 43cm ・Necklace/Round shape ・Earrings/Round shape ・Clasp: Bean-shaped 925 silver ■ It is extremely difficult to create large, round, beautiful genuine pearls without a nucleus, making them a truly miraculous existence. "Tsuyatama" brand pearl necklaces are carefully assembled one by one using a time-consuming finishing method called the all-knot method, where skilled pearl artisans select high-quality genuine pearls from among thousands of pearls, and then tie knots between each pearl to prevent them from rubbing against each other. The pearls come in a case with gentle functions, made of a special fabric that absorbs the oils attached to the pearls. It is a highly airtight cosmetic box with a soft, cushioned material that prevents dryness and humidity. Also, unlike ordinary cases, it has a unique design that prevents the pearls from bumping into each other, so you can store your precious pearls without scratching them. ★ Magnificent luster and elegant shine. All of this is 100% freshwater genuine pearls without a nucleus, made entirely of nacre. The shine and luster are comparable to Akoya pearls!