15.60ct Tanzanite & 2.90ct Diamond Platinum Ring with History

An impressive 15.60ct tanzanite / 2.90ct diamond ring in…
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An impressive 15.60ct tanzanite / 2.90ct diamond ring in platinum. This oval mixed cut tanzanite is set in a four claw setting, flanked and accented on shoulders with eighty four round brilliant cut diamonds of estimated total weight 2.90cts, F - H colour, VS - SI clarity. Ring size N. Tanzanite was discovered in 1967 in the Merelani hills near mount Kilimanjaro in Tanzania. Tanzanite is only found in a small area of Tanzania, making it one of the rarest gemstones and highly prized, tanzanite is a variety of the mineral zoisite and owes its blue colour to the presence of vanadium, most tanzanite gemstones undergo heat treatment to enhance their colour, changing from brownish hues to the desired blue-violet shades, it is believed to promote spiritual healing, enhance intuition, and bring tranquillity.

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  • Brilliant Cut - In their naturally occuring state diamonds have little life or sparkle and for many centuries were simply cut in half and worn in amulets. Invented at the end of the 17th century by a Venetian diamond cutter, a "brilliant cut" diamond has 58 facets arranged in a regular geometric relationship, with 33 above the crown and 25 below on the pavilion.

    The introduction of the brilliant cut increased the popularity of diamonds in jewellery as it was the first cut to reveal the fire of the diamond, with the light being internally reflected from one facet to another, and was superior to the previously used table cut and rose cut.Variants to the brilliant cut have emerged since the end of the 17th century, but the popularity of the original brilliant cut has continued to the present time, where it is still the most commonly found cut.

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