Diamond and White Gold Blue Topaz Birthstone Oval Ring 
A oval blue topaz birthstone, in a modern and simple setting, is the centerpiece of this ring. The natural oval-cut blue topaz gemstone measures 7 X 5MM (weighing approximately .85 carats) and is accented by 4 white round natural diamonds. The ring is crafted of cool, gleaming 10K solid white gold. Blue topaz is the birthstone for December. This blue topaz oval cut bithstone ring in white gold qualifies for free custom ring sizing. Size 7 is standard. When you order a custom size, please allow an additional 7-10 business days processing time.