What Is Ametrine? Bicolor Quartz
STONE GUIDE
What Is Ametrine — Purple & Gold in One Bicolor Quartz
HISTORY · MEANING · FEB & NOV BIRTHSTONE

Within a single crystal, purple (amethyst) and gold (citrine) melt into one another. Ametrine is a rare bicolor quartz that holds two colors at once — and two birthstones, February and November. From the secret behind its color to the legend of Bolivia's Anahí mine, here is a look at its charm.
About the Stone
About the Stone
Ametrine is a bicolor quartz in which two colors — amethyst (purple) and citrine (gold) — coexist within a single crystal. Though it is the same quartz, slight differences in temperature and iron state as the crystal grows cause purple and gold to appear separately within one stone. The conditions for these two colors to form naturally are very limited, making untreated, unheated ametrine a rare stone. Mohs hardness 7. Natural bicolor divides differently in every piece — no two are ever alike.

The Name & the Anahí Mine
History & Legend
The name "Ametrine" combines the names of two stones — Amethyst and Citrine. Its main source is the Anahí mine in Bolivia, South America. Around the 17th century, the story goes, a Spanish explorer married the indigenous princess Anahí and received the mine as her dowry; later, when he gave ametrine to his home country's queen, the stone became known in Europe. The mine's name, "Anahí," is still told alongside the stone today.

Meaning & Symbolism
Meaning & Symbolism
Ametrine carries the meanings of "harmony" and "stability." From the way two utterly different colors — purple and gold — melt into one crystal, it is said to symbolize balance, a settled heart, and the harmony that unites two things. As a stone that holds the meanings of both amethyst and citrine, it has been loved as a special piece that plays two roles in one.

Two Birthstones
Birthstone
Ametrine holds two birthstones at once — amethyst (February) and citrine (November). A rare single stone that speaks to those born in February and in November alike. It's chosen for couples' anniversaries, and as a gift for anyone who wants to honor two months at once.
Collection
SMUK's Ametrine Collection

Italian silver 925 with rhodium plating, set with untreated, unheated ametrine. This time we took on our first large-stone design — all over 1.5ct, with the largest heart cut at 6.7ct. Choosing bold sizes in a rare stone, so you can enjoy the full gradient of purple and gold.
Pre-orders on Makuake have now closed. Thank you for all your support. General release is planned for early November 2026.
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A stone where purple and gold harmonize into one, as a quiet accent to everyday life. May its glow stay close to you, day after day.
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