Best Square Loose Gemstones of 2026

John Zimmer Avatar
John Zimmer
Last Updated: 10 Feb 2026

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Looking for a way to add a touch of elegance and glamour to your jewellery collection? Consider square loose gemstones as a stunning addition. These gemstones are available in a wide range of colours and sizes, and can be used to create beautiful and unique pieces of jewellery. Whether you prefer the classic sparkle of diamonds, the rich hue of sapphires, or the warm glow of topaz, there is a square loose gemstone to suit your style. These gems can be set in rings, pendants, earrings, or any other type of jewellery you desire. Invest in a few of these beautiful gemstones to add some sparkle to your collection.

At a Glance: Our Top Picks

JINGANGZUO 15 Colour Square CZ Stones Cover #TOP 1
JINGANGZUO 15 Colour Square CZ Stones
ftb score rating icon 9.8
Natural Moonstone 4mm Faceted Cube Beads Cover #TOP 2
Natural Moonstone 4mm Faceted Cube Beads
ftb score rating icon 9.7
REAL-GEMS 94.50 Ct Square Cut White Topaz Cover #TOP 3
REAL-GEMS 94.50 Ct Square Cut White Topaz
ftb score rating icon 9.5

Top 6 Square Loose Gemstones

JINGANGZUO 15 Colour Square CZ Stones

JINGANGZUO
Mix 15 Colors
5x5mm 30pcs
JINGANGZUO 15 Colour Square CZ Stones Cover
JINGANGZUO Square Princess Cut Shape Cubic Zirconia Synthetic Gemstone Mix 15 Colors 5A Loose CZ Stone for Jewelry Making, 5x5mm 30pcs, Cubic Zirconia, cubic zirconia

The JINGANGZUO CZ Stones feature a stunning mix of 15 colours, with 30 pieces of square princess cut cubic zirconia stones measuring approximately 5x5mm. This variety allows you to create beautiful and unique jewellery pieces, enhancing your crafting experience. With a temperature resistance of 600 to 700 degrees Celsius, these stones are durable and reliable for various applications. You can use them to make earrings, bracelets, necklaces, rings, and more, making them perfect for both personal projects and gifts.

What We Like
Wide range of colours
Durable temperature resistance
Versatile for multiple crafts
High-quality cubic zirconia
Ideal for DIY jewellery making

Natural Moonstone 4mm Faceted Cube Beads

Moonstone
Natural Moonstone 4mm Faceted Cube Beads Cover
Natural Moonstone Gemstone 4mm Faceted Cube Square Loose Beads 16 Inch for DIY Jewelry Making Beads

The Justinstones Gemstone Beads come in a strand measuring approximately 15 to 16 inches long, featuring between 85 to 100 beads. Each bead is about 4mm in size and weighs around 16g per strand, making them ideal for various DIY jewellery projects. These high-quality loose beads are perfect for creating unique designs, as each one is distinct in colour and markings. Please note that the beads cannot be worn directly, but they offer endless possibilities for personalisation and creativity in your jewellery making.

What We Like
Unique colour variations
High-quality craftsmanship
Ideal for DIY projects
Generous bead quantity
Versatile design options
#TOP 3

REAL-GEMS 94.50 Ct Square Cut White Topaz

BU-125
White
REAL-GEMS 94.50 Ct Square Cut White Topaz Cover
High Quality White Topaz 94.50 Ct Loose Gemstone Finest Square Cut White Topaz For Pendant

The REAL-GEMS White Topaz is a stunning gemstone weighing 94.50 carats, perfect for creating a striking pendant. Its square cut shape adds a modern touch, ensuring that it catches the eye beautifully. With dimensions of 28 x 28 x 13 mm, this gemstone is substantial yet manageable, allowing for easy integration into various jewellery designs. The pure white colour of the created white topaz gives it a classic and elegant appeal, making it ideal for both casual and formal occasions.

What We Like
Large 94.50 Ct size
Elegant square cut shape
Classic white colour
Versatile for various jewellery

GEMHUB 200 Ct Brazilian Green Amethyst Square Cut Gemstones

HF-50GC-PF60
Multi
50 carats
GEMHUB 200 Ct Brazilian Green Amethyst Square Cut Gemstones Cover
GEMHUB 200 Ct. Brazilian Excellent Square Cut set of 4 Pcs Green Amethyst Loose Gemstone Beads

The GEMHUB Green Amethyst Gems come in a variety of attractive colours, including a pale red shade, offering you affordable and beautiful options for jewellery making and home décor. These gemstones feature an excellent square cut with great symmetry and polish, ensuring they look brilliant and eye-clean for your creations. They are known to calm upset emotions and generate positive energy, which can help you overcome personal blocks. Verified by expert gemologists, these stones guarantee top quality, making them ideal for enhancing your jewellery or gifting to someone special.

What We Like
Wide range of attractive colours
Excellent cut and clarity
Calms emotions and boosts positivity
Verified top quality stones
Suitable for jewellery and décor
#TOP 5

55Carat Natural Blue Topaz 5 Carat Square Gemstone

55BZLG5
Blue
55Carat Natural Blue Topaz 5 Carat Square Gemstone Cover
55Carat Blue Topaz Stone 5 Carat Original Natural Square Loose Gemstone

The 55Carat Blue Topaz Stone is a natural oval-shaped loose gemstone offered at a wholesale rate, making it accessible for various uses. It is ideal for astrologers, jewellers, designers, and collectors, providing a versatile option for crafting or gifting. If you require larger quantities, wholesale orders are available, offering better value for bulk purchases. This stone is perfect for those seeking a genuine blue topaz to enhance their jewellery creations or collections.

What We Like
Natural oval-shaped gemstone
Available at wholesale rate
Suitable for multiple uses
Ideal for bulk orders
#TOP 6

REAL-GEMS Green Amethyst Square Cabochon Gemstone

AXH-940
Green
Small
REAL-GEMS Green Amethyst Square Cabochon Gemstone Cover
REAL-GEMS Loose Gemstone Green Amethyst 31.4 Ct. Finest Square Shape Cabochon Loose Gemstone

The REAL-GEMS Green Amethyst offers a beautiful 31.4 Ct square cabochon, perfect for various jewellery-making projects. With dimensions of 122 mm x 22 mm x 9 mm, its impressive size makes it a standout piece. The gemstone features a brilliant colour and excellent clarity, providing a calming effect that can help soothe emotions and promote positive energy. This makes it an ideal choice for enhancing your jewellery creations and improving your decorative home items.

What We Like
Beautiful colour and clarity
Versatile for jewellery making
Calming emotional benefits
Unique pieces at reasonable prices
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a square cut stone called?

Asscher. Alternatively called "Square Emerald cut", it is a hybrid of a princess and an emerald cut. It presents with a distinct X in the gemstone's table and features cropped corners along its four sides.

2. What is the meaning of loose gemstone?

Loose gemstones are generally higher quality stones that are competently cut and polished. In other words, the precious and semi-precious gemstones fall under the category of a loose gemstone.

3. How do you show loose gemstones?

You can find gemstone organizers with pullout drawers as well as display cases with glass tops that also allow you to show off your gemstone collection. You'll need to secure your pieces in small jewelry bags or gemstone jars with foam inserts inside your storage or display cases for extra protection.

Editor's Notes

During our square loose gemstone research, we found 124 square loose gemstone products and shortlisted 6 quality products. We collected and analyzed 3,064 customer reviews through our big data system to write the square loose gemstones list. We found that most customers choose square loose gemstones with an average price of £20.43.

The square loose gemstones are available for purchase. We have researched hundreds of brands and picked the top brands of square loose gemstones, including JINGANGZUO, Justinstones, REAL-GEMS, GEMHUB, 55Carat.

Written by
John Zimmer Avatar

John Zimmer is a truly professional writer on findthisbest.com. He has specialized in writing content a wide variety of fields for over a decade. Since 2011, he has been using his expertise and extensive experience to write content for online shopping guide websites. In addition to writing for findthisbest.com, he has appeared in publications such as The Spruce, Wirecutter and Bestbuy.