Ametrine Quality

From an astrological perspective, a natural, highly transparent, bright-coloured stone with clearly visible colour bands, is considered the best quality Ametrine gemstone. The quality of Ametrine gemstone is characterized by multiple factors including its origin, distinct dual colour (orange and purple), clarity, and cut. 

• Origin  

Anahi mine in Bolivia is the oldest and also the finest resource for the best quality Ametrine natural gems, which are called Anahi Ametrines. Ametrine crystals are resourced from the quartz mines of eastern Bolivia (Santa Cruz), some parts of Brazil, Uruguay and India. Brazilian Ametrine is the next most preferred choice after Bolivian Ametrine.

• Colour  

The colour of Ametrine crystal majorly determines its quality. As it usually contains two distinct bands of orange and purple colour. Deep, rich coloured Ametrine stones displaying an equal ratio of orange and purple are rare and extremely valuable. Pale coloured Ametrine with poorly distinguishable colour bands are of inferior quality.

• Clarity  

The finest quality Ametrines are always highly transparent and come with minimum Eye visible inclusions. Like other Quartz varieties, Ametrine is also a Type II gemstone which usually contains inclusions. These inclusions such as tiger stripes, liquid inclusions, internal fractures and hematite needle-like inclusions often disturb the colour quality of the stone. However, Eye clean Ametrines can also be found yet their occurrence is not very common. 

• Cut  

The most popular and desirable are rectangular-cut or emerald-cut Ametrines, with 50/50 ratio of orange and purple colour bands, and are always in high demand. A skillfully faceted Ametrine gemstone always appears brighter, lustrous and highly transparent. Low quality Ametrine stones are generally shaped in cabochons (dome shaped, polished stone with no facets) to retain their colour and weight.

Ametrine Prices

Ametrine stone price is majorly determined by its origin, colour, clarity, cut and carat weight. Ametrine is a rare yet highly affordable gemstone which is primarily worn for its astrological and healing benefits. Ametrine stone price in India starts from ₹ 150 per carat and can reach up to ₹ 1,000 per carat and above. Prices in other countries like Dubai, UK, USA and UAE may vary depending upon the demand/supply cycle.

• Origin 

Being the most sought-after variety, Anahi Ametrine value remains the highest in comparison to stones from other origins. Because of low transparency and paler hue, the price of Ametrine crystal from India and Brazil is much lower than the Anahi Ametrine price.

• Colour 

Stones with distinctly visible, deep and bright colour bands of orange and purple fetch a good premium. Colour is the most influential factor that adds maximum points to the value. Ametrine gemstone price reduces for stones with pale or indistinctly visible colour bands.

• Clarity  

A highly transparent Ametrine with minimum Eye visible inclusions always fetches a good amount. Since, Ametrines are usually found in good clarity, there is very little chance to buy Ametrine that is not Eye clean. The price of Ametrine per carat decreases significantly for highly included gems with poor transparency.

• Cut  

A heavily faceted Ametrine value is always higher than of round and oval Ametrines. Cutting a gemstone can increase its cost up to 20% because of the wastage involved in the process. Stones in fancy cuts such as asscher cut, cushion cut etc. need extra care and good lapidary (gem cutting) skills, therefore, are often priced exorbitantly.

• Carat weight  

The price of Ametrine per carat increases with size but not as drastically as in expensive gemstones. Ametrine gemstone can be found in all shapes and sizes. However, large size stones are always much more valuable than smaller ones as colour bands look prominent in bigger ones.