Diamond Loose Stones: Compare Listings & Prices

Catalog refreshed October 19, 2026

Content revised October 28, 2026

Browse 17 listings for Diamond Loose Stones, including options from State st. jewelers. Compare product details and listed prices.

The 17 displayed listings with prices are listed from $600.00 to $18,500.00 (USD) in this catalog snapshot. Confirm the selected variant's current price, availability and purchase terms with the retailer.

The listings include oval, pear, emerald and marquise shapes, each cut to highlight brilliance.

When choosing a loose stone, consider carat weight, cut quality, color and clarity. Most items are certified by GIA, which adds confidence in the grading. Higher carat stones often command higher prices, but a well-cut smaller stone can appear just as striking.

Look for a shape that fits the setting you plan to use, and verify the certification details. Compare price per carat and decide whether you prefer a classic round-like cut or a fancy shape such as pear or emerald.

Questions

What does GIA certification mean?

It indicates the diamond has been evaluated by a reputable lab for its 4Cs and authenticity.

How important is cut compared to carat weight?

Cut affects sparkle the most; a well-cut stone can look larger than a heavier, poorly cut one.

Can I set a loose diamond myself?

Setting a diamond requires proper tools and skill, so most buyers have a jeweler do the work.

Do prices vary a lot by shape?

Yes, certain shapes like round and princess are often priced higher per carat than fancy shapes.

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