Burmese Blue Sapphire 1.04ct | Untreated | Lab Report | Mogok Origin | UK

A 1.04ct natural untreated blue sapphire from Mogok, Myanmar — accompanied by a laboratory report confirming the origin and untreated status. Untreated blue sapphire from Mogok is genuinely rare: the vast majority of sapphires traded commercially have been heat-treated to improve colour and clarity. A stone with a clean lab report confirming no treatment is a significantly more valuable and transparent purchase.

Product Details

• Colour: Blue
• Weight: 1.04ct
• Origin: Mogok, Myanmar
• Clarity: Slight Inclusions (AA)
• Dimensions: 6.9 × 5.3 × 2.9mm
• Mineral: Natural Sapphire (Corundum)
• Hardness: 9 (Mohs scale)
• Treatments: None — laboratory report included
• Product Code: J001

Our Clarity Grading

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

Why Untreated Mogok Sapphire?

Mogok has been producing sapphires alongside spinel for centuries and the two gemstones are often found in the same deposit. Burmese sapphires with a confirmed Mogok origin and an untreated status command a premium in the international market — this is a well-established pricing differential that laboratory reports make verifiable. The 1.04ct size with a laboratory report is a commercially clear proposition for jewellers, collectors, and buyers who understand sapphire value and provenance.

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.