Connerstone directly connects customers with primary diamond and colored gemstone dealers around the world.

Even stones with the same grade and grading report may vary in price depending on each dealer’s inventory and pricing policy.

Choose the grade and grading report in the filters, then sort by lowest price to compare stones under the same conditions and purchase at the most reasonable price.

When you purchase a stone listed with a grading laboratory such as GIA or IGI, the original report issued by that laboratory is included with your shipment.

Before shipping, the Connerstone Inspection Center compares the report number laser-inscribed on the stone’s girdle with the original grading report.

You can also read the girdle inscription with a loupe or microscope and look up the report number on the official GIA or IGI website to confirm that the information matches.

If you need help checking the girdle inscription after purchase, reserve a showroom visit and our team will assist you.

Yes. You may view up to three stones with a same-day shipping schedule at the showroom.

Depending on inventory on the day of your visit, a requested stone may be unavailable and may be prepared in the same grade or under similar conditions without separate notice.

Yes.

Use the Add to Cart function on the stone detail page to purchase a loose diamond or colored gemstone without a jewelry product.

The 360° HD video helps you review the stone’s shape, overall color, inclusions, and light reflection. Actual color and brilliance may appear different depending on the lighting, camera settings, monitor, and device environment.

For a more accurate review, choose an exchangeable and returnable Blue Label stone or use Premium Stone Review to receive images and videos of selected stones captured from different angles and under different lighting.

Premium Stone Review: up to 3 stones · 72 business hours