Tatiana Volosozhar and Maxim Trankov won their second gold medal of the Winter Olympics in the figure skating pairs.
The Russian duo, who had already claimed team gold earlier in the week, added a free-skating score of 152.69 to their short-program tally of 84.17 for an overall score of 236.86, finishing over 18 points ahead of their second-placed compatriots Ksenia Stolbova and Fedor Klimov (218.68) in front of a raucous Sochi crowd.
Germans Aliona Savchenko and Robin Szolkowy earned another bronze medal to add to the one they won in Vancouver with an overall score of 215.78, having fallen twice during Wednesday's free skating performance.
"I was crying because I felt so many emotions, nerves, concentration. I'm still nervous and shaking but I'm also so happy," said Volosozhar whose make-up was streaked by her tears.
Her partner added: "We are like two halves of the same person, we are like twins. We always know where each other is, feel each other, we are always together and we share the same moments.
"Today was a big day for all of Russia. Two of our couples have skated very well and I think everyone in our big country is pleased. It was the hardest job of our lives.
"We dealt with huge pressure today. We already have gold in the team event but this is the realisation of the goal and the dream of our lives."
Also on Wednesday, Tobias Wendl and Tobias Arlt continued Germany's dominance of the luge events in the men's doubles.
The pair dethroned two-time defending champions Andreas and Wolfgang Linger by 0.522sec after posting a combined time of one minute 38.933 seconds from their two runs.
Their success followed German teammates Felix Loch and Natalie Geisenberger, who won Olympic gold medals in men's and women's singles earlier in the week.
The Dutch continued their golden speed skating run when Stefan Groothuis won the men's 1,000 metres title.
He clocked one minute 8.39 seconds for his two-and-a-half laps in the 16th heat of 20 at the Adler Arena, with compatriot Michel Mulder, the winner of the men's 500m, taking bronze and Canadian Denny Morrison sandwiched between the pair to earn silver.
His win saw a fourth speed skating gold in five events for the Netherlands, who have now won 10 medals in Sochi, all from speed skating.
Elsewhere, Germany's Eric Frenzel held off a strong challenge from Akito Watabe to win the Nordic combined 10km-normal hill gold medal.
Frenzel scored 131.5 points in the opening ski jump event, which was converted to a 0.6 seconds advantage over his Japanese rival heading into the cross country element.
The pair were then neck-and-neck for much of the 10-kilometre course until Frenzel pulled away down the home stretch to claim the gold.
Watabe secured Japan's first medal in the event for 20 years, finishing four seconds behind Frenzel, with Norway's Magnus Krog completing the podium places.
American snowboarder Kaitlyn Farrington edged out defending champion Torah Bright by a quarter of a point to claim gold in the women's halfpipe.
The 24-year-old's score of 91.75 on her second run ensured she pipped Australian Bright, gold medal winner at Vancouver 2010, by the narrowest of margins at Rosa Khutor Extreme Park.
Pre-event favourite Kelly Clark (90.75) made it an American one-three as she earned bronze.
Wednesday also saw the start of the men's ice hockey competition, with Sweden beating the Czech Republic 4-2 and Switzerland snatching a 1-0 victory over Latvia with a goal eight seconds from time from Simon Moser.
In the women's qualifiers, Canada came out on top in the battle of the powerhouses, defeating the United States 3-2 to top Group A. Finland needed overtime to see off Switzerland 4-3.