Untreated Colombian Emerald 0.995 ct Oval – No Oil, Natural Loose Stone

Dreaming of an emerald that's soft, fresh and completely natural? Not every emerald has to be deep forest green. This natural Colombian emerald has a cool, bluish mint green, the fresh, airy shade that's perfect for a minimalist engagement ring or a dainty solitaire. Best of all, it's completely untreated: no oil, no resin, nothing added. What you see is exactly what came out of the ground in Colombia. At just under a carat, it has real presence on the hand while staying delicate and modern.

• Natural. Untreated. Mint green. Made to be remembered.
• Natural Colombian emerald, 0.995 ct, hand-faceted oval
• Completely untreated: no oil, no resin, nothing added
• Cool, bluish mint green
• About 7 × 5 mm, fits standard 7 × 5 mm oval settings
• A loose natural emerald from Colombia, sold unmounted. There is only one of this stone.

The colour

Emerald dealers describe Colombian emeralds with a blue modifier as "bluish green", and the cool, slightly blue tone is often called "Chivor green" after the Colombian mine famous for it. This stone is a lighter version of that cool green: think fresh mint or sea glass rather than deep forest green. It looks especially pretty in white gold or platinum, and soft and warm in yellow or rose gold.

Why "no oil" matters

Oiling is the standard, accepted treatment for emerald, and it's used on almost every stone sold. An untreated emerald has nothing added and nothing to wear away or re-treat over time. The natural inclusions you can see in the photos are part of what makes it genuine: they're the emerald's "jardin", its natural fingerprint.

For the engagement ring buyer

• Just under 1 carat, a classic solitaire size
• About 7 × 5 mm, which fits standard 7 × 5 mm oval settings
• Perfect for a minimalist solitaire, a bezel, a halo or an east-west setting
• A lighter emerald like this looks fresh and modern, and pairs beautifully with diamonds
• Emerald is softer than sapphire, so a protective bezel or a halo is a good choice for everyday wear

A gemstone for him: the men's signet ring

At Roho Jewels, we believe men deserve beautiful gemstones too. A natural Colombian emerald set into a signet ring is a bold, personal alternative to a plain metal signet: one-of-a-kind, full of character, and a ring he'll wear for decades and one day pass down.

• Signet face: at 7 × 5.3 mm, this stone suits a signet face of about 10–13 mm, a classic small signet or pinky ring
• Setting: flush (gypsy), bezel or half-bezel keeps it low and smooth, with no claws to catch on sleeves or gloves
• Depth: the stone is 4.7 mm deep, so ask your jeweler for a signet head at least 5.7 mm deep
• Metal: rich in yellow gold, sharp in white gold or platinum, rugged in oxidised sterling silver
• Wear: Mohs 7.5–8. A flush or bezel setting protects the edges, making it ideal for a dress signet or careful everyday wear
• Perfect for: husbands, fathers, grooms, graduates, milestone birthdays, or a signet he buys for himself

Birthstone meaning

Emerald is the birthstone for May and the traditional gemstone for 20th and 35th wedding anniversaries, long a symbol of love, renewal and loyalty.

Perfect for

Minimalist Engagement Rings · Solitaire Rings · Proposals · Christmas · May Birthdays · 20th & 35th Anniversaries · Pendants · Jewelry Designers · Men's Signet Rings · Gifts for Him

About Roho Jewels

At Roho Jewels, everything begins with the stone. Every natural gemstone we offer is hand-selected in our Toronto studio. These are real, earth-mined sapphires, rubies, emeralds and pearls, never synthetics, and every stone is described honestly so you know exactly what you're buying. Our goal is simple: real gemstones, real craftsmanship and real value, without traditional retail prices.