Bright Grey Mogok Spinel 1.40ct | Untreated | UK

A 1.40ct bright grey natural spinel from Mogok, Myanmar — untreated with slight inclusions. The grey tone is clean and somewhat bright, closer to silver-grey than dark charcoal, giving the stone a contemporary quality that works particularly well in modern fine jewellery.

Product Details

• Colour: Grey
• Weight: 1.40ct
• Origin: Mogok, Myanmar
• Clarity: Slight Inclusions (AA)
• Dimensions: 6.4 × 5.6 × 4.9mm
• Mineral: Natural Spinel
• Hardness: 8 (Mohs scale)
• Treatments: None
• Product Code: G007

Our Clarity Grading

• AAA+: Loupe-clean
• AAA: Eye-clean (no inclusions visible to the naked eye)
• AA: Slight inclusions
• A: Moderate inclusions

Why Grey Spinel?

Grey and silver-toned spinels have become increasingly popular with jewellery designers working in the contemporary and minimalist space. The neutral colour is highly versatile — it does not compete with the metal setting, it complements it. Grey spinel over 1ct from a Mogok origin is not commonly stocked in the UK. It suits solitaire rings, minimal pendant designs, and designers sourcing unusual neutral-tone material.

About Natural Spinel Gem

We specialise in natural untreated spinel, sourced directly from small-scale miners in Mogok, Myanmar — one of the world's most celebrated gem origins. Gemstones are hand-cut locally. All gemstones are available for private viewing across London at your business premises or by appointment at Hatton Garden.