Kashmir Sapphires

The term "Kashmir" in the gemstone world is synonymous with the finest blue sapphire ever unearthed. Mined for only a brief period in the late 19th century, these stones remain the benchmark for blue — the reference every other sapphire is measured against.

A 40-year window

The Kashmir deposit, high in the Himalayas near the village of Soomjam, was discovered after a landslide in 1881 and was effectively exhausted by the early 1920s. No commercially significant production has come from the region since. Every Kashmir sapphire on the market today was mined more than a century ago.

What makes the colour unique

Kashmir sapphires display a saturated, velvety cornflower blue with a soft, slightly milky appearance under magnification — the "sleepy" or "lock" look caused by fine rutile inclusions that scatter light evenly. The effect is that the stone retains its colour whether in bright sunlight, shade, or incandescent light, without darkening or shifting toward violet.

Provenance is everything

Because the deposit is closed, provenance is value. Stones from Kashmir command 3-5× the price of comparable Burmese or Sri Lankan sapphires of similar size and quality. The top labs — Gübelin, SSEF, AGL — provide origin reports that identify Kashmir by its distinct inclusion signature and trace-element chemistry.

Beware of sapphires described as "Kashmir-like" or "cornflower" without a lab origin report — these terms describe colour, not origin.

What to look for

• A lab report from Gübelin, SSEF, or AGL explicitly identifying Kashmir origin
• No heat treatment (Kashmir stones are nearly always untreated — heating would be a red flag for the origin)
• Carat weight: fine Kashmirs over 5 ct are exceedingly rare; over 10 ct approaches museum-grade
• The milky "sleepy" quality — it should enhance, not obscure, the colour

How we advise clients

Kashmir sapphires are trophy stones — collection pieces first, jewellery second. If you are considering one, we recommend viewing two or three comparable examples side by side; the differences in saturation and presence are dramatic even within "top grade" Kashmir material.

Request a Kashmir sapphire consultation and we can arrange a private viewing in our Bangkok or Dubai office.