18K RING Yellow and White Gold Tourmaline 6

The stone’s balanced proportions make it ideal for sophisticated bespoke jewelry designs

showcasing an electric blue hue of remarkable depth and intensity that seems to glow from within

5" width x 5

5th series)

1.70ct Mahenge Cobalt Blue Spinel MC-B-4Sep2025 18K RING Yellow and WhiteThis 1. 70ct Mahenge Cobalt Blue Spinel is a natural, untreated gemstone renowned for its vivid colour and outstanding clarity. Originating from one of the most prestigious spinel sources, it offers an authentic representation of the minerals beauty. Ideal for collectors and fine jewellery, this spinel combines rarity with exceptional natural quality.