Men's 1CT Diamond Two Tone Fashion Ring in 10k Gold,10.5. Men's 1CT Diamond Two Tone Fashion Ring in 10k Gold. Product Details: Dimension - 16.5mm Diamond Weight - 1CT, Stone Color - I2-3. Diamonds - White & Brown- Natural, Black & Blue-Treated. Nissoni Jewelry is an excellent source of exclusive jewelry for all occasions such as Engagement, Wedding, Anniversary and more. Subscribe to our site today for new arrivals and best deals!.