• Unheated natural blue green sapphire 2.12 carat octagon cut loose gemstone
  • Octagon cut blue green sapphire 2.12 ct unheated on white background
  • Natural unheated blue green sapphire emerald cut 2.12 carat
  • Loose blue green sapphire gemstone 2.12 ct with octagonal facets
  • High quality unheated blue green sapphire 2.12 carat precision cut
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Shiraz Jewelry

Unheated Natural Blue Green Sapphire 2.12 Carat Octagon Cut | Loose Gemstone

Unheated Natural Blue Green Sapphire 2.12 Carat Octagon Cut | Loose Gemstone

฿23,000.00 THB
฿23,000.00 THB
Sale Sold out

This 2.12 carat unheated natural blue-green sapphire displays a captivating blend of oceanic blue and subtle green hues, shifting beautifully under different lighting conditions. Cut in a refined octagon (emerald-style) shape, the gemstone offers excellent symmetry, crisp facet junctions, and an elegant balance of brilliance and depth.

The sapphire is unheated, meaning it has not undergone any heat treatment to enhance its color or clarity. This natural state is highly valued by collectors and connoisseurs, as it preserves the gemstone’s original formation and rarity. Fine unheated blue-green sapphires of this size and color are increasingly sought after in today’s market.

With its versatile tone and classic cut, this sapphire is ideal for custom jewelry, including engagement rings, statement rings, or bespoke fine jewelry designs. Its durability and timeless appeal make it suitable for both daily wear and long-term investment.

Key Details:

  • Gemstone: Natural Sapphire
  • Color: Blue-Green
  • Carat Weight: 2.12 carats
  • Treatment: Unheated (No heat treatment)
  • Cut: Octagon / Emerald Cut
  • Shape: Octagonal
  • Type: Loose Gemstone

Details

Make: None

Metal: None

Gemstone: Sapphire

Gender: Unisex

Color: Teal

Age: All

Shipping & Returns

Please refer to our Refund Policy

We ship internationally using registered service. Free shipping for total orders from items available online of min THB 35,000 via DHL/UPS.

Care Instructions

  • Clean with lukewarm water, mild soap, and a soft toothbrush.
  • Store separately to avoid scratches.
  • Avoid harsh chemicals, hand sanitizers, and perfumes.
  • Remove before swimming, working out, or gardening.
  • Avoid rapid temperature changes to protect the gemstone(s).
  • Have prongs checked annually by a professional jeweler.
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Engagement Rings - FAQ

What is the best gemstone for an engagement ring besides diamond?

Sapphire, especially unheated ones from Thailand, are a durable and beautiful alternative. They come in various colors including blue, green, and pink, and are ideal for daily wear.

What’s the difference between heated and unheated gemstones?

Heated stones have been enhanced for color, which is common. Unheated stones are rarer and considered more valuable by collectors.

Is it okay to choose a colored gemstone for an engagement ring?

Absolutely! Many modern couples choose sapphires, spinels, or emeralds to express personality and style.

How do I know my ring size?

You can visit us in person or use a printable ring sizer. If it’s a surprise, try borrowing a ring they wear on their ring finger.

Can I customize my engagement ring?

Yes! We offer custom ring designs. You can choose the gemstone, setting, and style that suits your love story.

Gemstones - FAQ

Explore

  • What is an unheated green sapphire?

    It’s a natural sapphire that hasn’t undergone heat treatment to enhance color. It’s rare, collectible, and more valuable.

  • What gemstones is Thailand famous for?

    Thailand is especially known for sapphires (blue, green, yellow), rubies, spinel, zircon, and garnet. The Chanthaburi and Kanchanaburi regions are particularly famous for gem mining.

  • Are gemstones cheaper in Thailand?

    Often yes, because Thailand is close to gem sources and has lower cutting costs. But prices vary depending on the type, quality, and treatment of the stone.

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    Natural green sapphire ring with diamonds set in 18k white gold

    Have you tried a Thai Green Sapphire ?

    Have you ever tried a Thai Green Sapphire? Look, it costs a fraction of the price of blue sapphires, and we have sourced the finest green sapphires from Thailand! With their unique hue and exceptional clarity, these gems are sure to add a touch of elegance to any jewelry collection. Read more about green sapphire