Loose Gemstones
Round Cut Lab Grown Emerald
Round Cut Lab Grown Ruby
Round Cut Lab Grown Royal Blue Sapphire
Round Cut Lab Grown Pink Morganite
Pear Cut Lab Grown Cobalt Blue Sapphire
Cushion Cut Lab Grown Light Padparadscha Sapphire
Asscher Cut Lab Grown Cornflower Blue Sapphire
Cushion Cut Lab Grown Tourmaline Red Sapphire
Emerald Cut Lab Grown Green Sapphire
Oval Cut Lab Grown Purple Blue Sapphire
Long Cushion Cut Lab Grown Pigeon Blood Sapphire
Heart Cut Lab Grown Pink Sapphire
Asscher Cut Lab Grown Dark Padparadscha Sapphire
Heart Cut Lab Grown Tourmaline Red Sapphire
Asscher Cut Lab Grown Dark Pink Sapphire
Asscher Cut Lab Grown Green Sapphire
Loose Gemstones in Every Color and Cut
Explore the beauty and variety of loose gemstones at Carat Island. Whether you’re a jeweler, collector, or jewelry designer, our curated selection offers something for every vision — from classic natural stones to vibrant lab-created gems.
We carry a full spectrum of gemstones in popular shapes like round, oval, emerald, cushion, pear, and more. Choose from a wide variety of colors, sizes, and clarities to suit your budget and project needs. Our collection includes popular stones like sapphire, emerald, ruby, garnet, spinel, topaz, and zircon — in both natural and lab-grown forms.
At Carat Island, quality and sourcing transparency are core to our values. While many of our gemstones are lab-created or synthetic — offering exceptional brilliance at accessible prices — we also feature a growing selection of natural stones for clients seeking earth-mined options.
Whether you’re shopping for a custom engagement ring, restocking for your jewelry business, or building your gem collection, you’ll find loose gemstones here that blend beauty, ethics, and value. We offer worldwide shipping and responsive support for all orders.