Emerald Gemstone Jewellery
Emerald belongs to the beryl family, alongside aquamarine (blue) and morganite (pink), and it has been treasured among coloured gemstones for thousands of years. At GIOIA Fine Jewellery we design emerald rings, pendants and earrings from scratch around the stone each client chooses. If you are planning a proposal, see our emerald proposal rings.
The “Big Three” Gemstones
Together with ruby and sapphire, emerald is one of the “Big Three” coloured gemstones and a popular choice for gemstone engagement rings. Fine emeralds are far rarer than commercial grades, which is why the best stones command high prices. The green comes from traces of chromium and vanadium in the crystal.
Traces of iron can give emerald a slightly bluish or yellowish green. The most valued stones are a pure green to slightly bluish green with good clarity.
Complete Guide to Emerald Jewellery
Understanding Oil Treatment
Most emeralds have small fissures that reach the surface, and the great majority on the market are treated with oil or resin to make them less visible. Laboratories grade how much filling a stone has, on a scale that runs from none through minor and moderate to significant, and the grade makes a big difference to price.
These fissures form as the crystal grows, and tiny pockets of fluid or other minerals are often trapped inside. They make emerald more fragile than its hardness suggests, so a stone with few inclusions and little or no oil is genuinely rare.
Value & Quality Criteria
Colour comes first. A vivid, even green is worth far more than a pale or greyish stone of the same size. Clarity is judged with oil in mind, since both eye-visible inclusions and heavy filling lower the value. The cut should bring the stone to life without leaving it too shallow or too deep, which is why most emeralds are step cut.
Whenever a client commissions bespoke jewellery with an emerald, we give the same advice: choose the better colour over a bigger stone. A smaller emerald with a strong green looks richer on the hand than a large one with a greyish tone.
The Best Colour: Muzo Green
Many people know emerald by one name: Muzo. The Muzo mine in Colombia is famous for a warm, pure green that the trade calls Muzo green, and it holds the same place among emeralds that pigeon blood holds among rubies and royal blue among sapphires. Fine emeralds also come from Zambia, often with a cooler, slightly bluish green.
Custom Emerald Engagement Rings
We make emerald engagement rings around the stone each client chooses, from vivid green Zambian stones to Muzo green from Colombia. Each design is drawn for that client, so no two rings are the same.
Emerald crystals grow as six-sided prisms, which is why the stone is usually given the rectangular step cut known as the emerald cut. Its long, flat facets show the colour well.
Because emerald is more fragile than ruby or sapphire, we design each customised engagement ring to protect the stone’s corners and edges as well as show it off. For an emerald you plan to wear every day, we talk this through with you before the design is final.
Family Cluster Earrings with Birthstones
Meaningful Heirloom Pieces
Emerald is not only for engagement rings. It also works in other gemstone jewellery, such as family cluster pieces. These earring studs bring together the birthstones of one family: emerald for May, sapphire for September and amethyst for February. Made this way, they become something to pass down as an heirloom.
Final Thoughts
Whether it is for an heirloom piece or an engagement ring, judge an emerald on its colour first, then its clarity, cut and level of oil.
You may be told that another green gem, such as tsavorite, is rarer or more valuable than emerald. Fine tsavorite is a beautiful stone, but it is a different gem with its own market, and an emerald is best compared with other emeralds.
The trade often calls emerald inclusions jardin, French for garden, and a few are expected in any natural stone. Even so, we look for clean, transparent stones, because heavy inclusions dull the colour and lower the value.
Laboratory wording matters too. From 1 November 2025, Gübelin Gem Lab dropped its “insignificant” grade for emerald clarity enhancement, so those stones are now reported as showing no indications of clarity enhancement. Gübelin said the change brings its terms in line with other major laboratories. It is one more reason to read the report itself rather than a summary on a label.
Frequently Asked Questions
Find answers to commonly asked questions about our emerald jewellery.
Does emerald jewellery hold its value?
Emerald has been treasured for thousands of years and is one of the Big Three precious gemstones, alongside ruby and sapphire. Fine emeralds with strong colour and little oil are scarce, which supports their price, but no future value is guaranteed. Choose the stone because you love its colour, which you will enjoy every time you wear it.
Why should I choose a custom emerald engagement ring?
A customised engagement ring lets you create a piece that reflects your own style. We design each setting to show the emerald’s colour and to protect it from knocks, so the ring can be worn for years.
What is the significance of the vivid green colour?
A vivid green, especially the warm Muzo green from Colombia, is what buyers look for most. Fine stones also come from Zambia and Brazil. Other green gems exist, but emerald’s own green is the colour most people picture when they think of the stone.
Can these green gems be used in other types of bespoke jewellery?
Yes. Besides engagement rings, we set emeralds in pendants, earrings and family cluster pieces, each designed around the stone you choose.
How should I care for my green gemstone jewellery?
Emerald needs gentle care because it can chip if knocked. Clean it with warm water, mild soap and a soft brush, and keep it away from ultrasonic and steam cleaners, harsh chemicals and sudden heat. Bring it to us to have the setting checked as part of our lifetime cleaning and inspection.
What makes GIOIA’s emerald jewellery different?
Our co-founders choose every gemstone, and each piece is designed from scratch for one client. Centre stones above about SGD 1,000 come with an independent lab report, which for an emerald also states how much oil it has.
Have a question about emerald?
If you have any other queries, feel free to reach out to us. Our GIOIA team is here to help!
Also from our emerald collection: an Emerald Catholic Pendant and a No Oil Emerald Pendant.
A Zambian Emerald, Custom-Cut
An art deco design built around a Zambian emerald.
A Vivid Green Emerald, Hidden Halo
A 2.01ct emerald set with a diamond halo concealed beneath the stone, GRS certified.
Clarence Yee, GIOIA’s co-founder and gemstone specialist, personally inspects every emerald in this collection before it is set.