With international film festivals in Toronto and Venice, a movie premiere in London, and Mercedes-Benz Fashion Week in NYC, the last fortnight has been a visual feast for fashion and jewelry watchers. Here’s a roundup of five fabulous jewelry looks we love…including one special engagement ring that stole the show.

At Fashion Week, ready-to-wear designers typically soft-pedal jewelry when introducing their new collections in order to let the clothes take center stage. Marissa Webb’s outstanding Spring/Summer 2014 runway collection on September 5 was a notable exception. The 30-something designer incorporated pieces from Yael Sonia’s “Rock” jewelry collection into her show at New York’s Lincoln Center. Sonia’s cocktail rings and pendants in 18-karat gold with semi-precious gemstones and diamonds worked beautifully with Webb’s designs.

That same night in London, Naomi Watts arrived at the world premiere of the biopic “Diana” in a white Versace gown and diamond earrings by Chopard. The 44-year-old actress stars as the Princess of Wales, and while the film is getting mixed reviews the clothes and jewelry do not disappoint.

On September 6, at the Toronto Film Festival, newcomer Lupita Nyong’o also paired a white gown with diamond jewelry. Nyong’o, who plays Patsey in Brad Pitt’s “12 Years a Slave,” rocked a long-sleeved Prada design with a pleated, sequined bodice and jaw-dropping diamond ear clips. Fashion and accessories editors declared her a stand-out on the carpet.
Sandra Bullock was a fan favorite on August 28, the opening night of the Venice International Film Festival. Bullock wore a red, strapless J. Mendel gown with 23-carat black spinel earrings by Beverly Hills jeweler Martin Katz. She walked the red carpet with co-star George Clooney to promote their new film “Gravity.”

But the real scene-stealer at the VIFF was Scarlett Johansson, leading lady of “Under the Skin.” The 28-year-old actress showed plenty of her own in a black Atelier Versace gown with a multi-colored gemstone Bulgari statement necklace. As if all this were not enough, Johansson also debuted her drop-dead-gorgeous vintage-design diamond engagement ring in Venice. Presented to her by French journalist fiancé Romain Dauriac, the ring features three large round brilliant-cut diamonds in a rectangular Art Deco setting.

Now that’s what we call star power!