When buying rubies, the quality is assessed based on several critical factors:
- Colour: The most significant factor in ruby quality. The ideal colour is a vibrant, deep red with a hint of blue, often referred to as “pigeon’s blood” red. The intensity and evenness of the color greatly affect the gemstone’s value.
- Clarity: Rubies are expected to have some inclusions, but the visibility and amount can affect their value. Clear stones with minimal visible inclusions are more prized and rare.
- Cut: The cut of a ruby refers to how the stone is shaped and faceted to enhance its luster, colour, and overall appearance. A well-cut ruby will reflect light well and appear luminous.
- Carat: Larger rubies are rarer and, thus, more valuable. The price increases exponentially with size, especially for high-quality stones above one carat.
Price
The price of rubies varies greatly based on their quality. Factors like origin can also impact price; for instance, Burmese rubies typically command higher prices. Prices can range from $100 to over $10,000 per carat for the highest quality gems. Synthetic rubies offer a more affordable alternative but are significantly less valuable than natural rubies.
Considerations When Buying
Certification: Ensure the ruby is certified from a reputable lab, confirming its authenticity and quality.
Treatment: Many rubies are treated to enhance their colour and clarity. Heat treatment is common and accepted, but treatments like filling fractures or dyeing are less desirable.
Origin: The source of the ruby can affect its value; Burmese rubies are often the most sought after, followed by those from Madagascar, Thailand, and Sri Lanka.
Synthetics and Imitations: Be wary of synthetic and imitation rubies. Synthetic rubies are lab-grown and have identical properties to natural rubies but are much less valuable. Imitations like glass or cubic zirconia are not genuine rubies.
Popularity
Rubies are highly popular in jewellery due to their striking red colour and hardness, making them durable enough for everyday wear. They are especially favoured in engagement and wedding rings, necklaces, and earrings.
Scarcity
Natural rubies are considered rare, especially those without any heat treatment and those that boast a perfect colour and clarity. The scarcity of high-quality rubies naturally inflates their price and makes them a significant investment.
Final Advice
Buying a ruby is a significant investment, and it’s important to do thorough research and possibly consult with a gemmologist. Purchasing from reputable dealers who provide transparent information about the stone’s origin, treatment, and certification can lead to a more secure and satisfying acquisition.