Royal Blue Sapphire is the most classic and sought-after variety of sapphire, characterized by a deep, saturated blue color that evokes royalty and timeless elegance. This rich, intense, and pure blue shade represents the ideal of blue sapphire.
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Corundumминеральное семейство
Standard Heat TreatmentHigh-temperature heat treatment (1600-1800°C) is applied to over 95% of Royal Blue Sapphires. This permanent process improves color by dissolving rutile inclusions and intensifies the blue. Widely accepted in the market, it must nonetheless be mentioned in gemological certificates.
Untreated / NaturalUntreated Royal Blue Sapphires are extremely rare (less than 5% of the market) and highly prized by collectors. Their rarity and natural beauty give them significantly higher value. A prestigious laboratory certificate (GIA, GRS, SSEF, Gübelin) is essential to confirm the absence of treatment.
Beryllium DiffusionControversial treatment that introduces beryllium into the stone at high temperature to modify or intensify color. This treatment significantly affects value (70-90% reduction) and must be systematically disclosed. Detectable by specialized laboratory analysis.