Designed in-house and handcrafted, this coloured gemstone and diamond cocktail ring is the perfect accent to any look this season. The rare blue-purple hue of a Tanzanite stone is a popular alternative to sapphire and is mined at only one location on earth: Tanzania, from a mine near Mount Kilimanjaro. This precious gem featured in this ring is a princess cut Tanzanite weighing 2.60ct and held between 18ct yellow gold claws. The claws add a subtle contrast to the halo of round brilliant cut…