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Madagascar Blue Sapphire — Unheated

Illustration of Madagascar map and white water lily; blue sapphire crystal, included sapphire, and faceted sapphire.
Educational illustration generated with meta/muse-image.

ENCYCLOPEDIA · SKYJEMS

Madagascar Blue Sapphire — Unheated

Madagascar Blue Sapphire — Unheated, Lotus-Certified
Skyjems in-house photography/video, SKU S1162
Key concepts
madagascar sapphire, ilakaka sapphire, unheated sapphire, blue sapphire alternative

Madagascar entered the global sapphire market in the 1990s and, as of 2013, the Ilakaka deposit was described by GIA as probably the world’s largest sapphire producer. Unheated Madagascar blue sapphire — particularly from the Ilakaka and Sakaraha deposits — is known for vivid blue hues with a slight violet undertone, and origin determinations are available from GIA and other specialist laboratories. Skyjems carries a substantial Madagascar sapphire inventory, with GIA documentation available across the collection.

Why Madagascar matters

Two reasons. First, Madagascar’s Ilakaka and Sakaraha deposits have been a consistent source of fine sapphire since the 1990s, making this origin an important part of the global supply. Second, the trace-element fingerprint of Madagascar corundum is distinct enough that origin determination is reliable, which means buyers get true African pedigree on the lab letter. The colour at top quality is a vivid blue with slight violet undertone.

How Madagascar prices against Ceylon

The value of an unheated sapphire is influenced by origin, colour, clarity, and carat weight. Madagascar’s more recent entry into the market offers an alternative to historic Ceylon material, and the lab report provides the critical origin information you need to evaluate each stone.

Reading a lab report on Madagascar sapphire

Among the specialist laboratories active in this space, Lotus Gemology's Madagascar sapphire reports typically include origin = Madagascar (sometimes specifying Ilakaka or Sakaraha when supported), species = corundum (variety = sapphire), treatment = no indications of heating (for unheated), colour grade, measurements, and weight. Skyjems lists Madagascar sapphire with the lab letter referenced on the product page.

Five-step evaluation

(1) the lab report confirms origin = Madagascar and treatment = no indications of heating; (2) colour reads vivid blue with possible slight violet undertone; (3) clarity is eye-clean to lightly included; (4) cut returns light through the centre; (5) carat weight matches the lab.

Skyjems inventory snapshot

Browse our current unheated Madagascar sapphire selection — loose stones and finished pieces — at /collections/sapphire.

Private viewings and bespoke

Contact Skyjems at +1-416-366-3335 or request a private viewing.

Skyjems in-house photography/video, SKU GIAS8016