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Blue Lab-Grown Diamonds

Blue lab-grown diamonds get their color from boron added during growth, usually in HPHT stones, so most blues are as-grown. Tones range from light sky blue to deep blue. Choose a loose blue lab-grown diamond in one of 10 shapes, or a finished piece: stud and drop earrings, pendants, necklaces and halo rings. Every stone can be quoted with a grading report on request, and any design can be adjusted for size, metal or setting.

Every blue stone is quoted to your orderPrices follow the shape, size and depth of color. Tap Get a quote and we reply within 1 business day.

Blue, Shape by Shape

Ten loose shapes and finished pieces in blue. Tap a stone for its page, or jump to a product type below.

Color from growth

Blue comes from boron added during growth, usually in HPHT stones, so most blues are as-grown. We confirm the origin of color per stone before you order.

How to Choose a Blue Lab-Grown Diamond

ToneBlue can look slightly gray in some light. View stones in daylight and under indoor lighting before you choose.
MetalWhite gold and platinum keep blue crisp; yellow gold adds contrast for a bolder look.
ShapePear, cushion and oval show blue color well. Smaller blues work as accents next to white diamonds.
Origin of colorMost blues are as-grown. Confirm it per stone; the report and invoice state the origin of color.
Are blue lab-grown diamonds natural-looking?
Yes. Boron gives natural blue diamonds their color too, and a lab-grown blue uses the same mechanism. It must still be described as lab-grown.
Are blue lab-grown diamonds treated?
Most are as-grown. Some stones are treated to adjust color; when that happens it is stated on the report and invoice.
Can I set a blue lab-grown diamond in a custom ring?
Yes. Choose the stone here, then pick a setting style or send your own design. See design your own ring.
Retail & wholesale

Blue Lab-Grown Diamonds for Retailers and Brands

Buying blue stones for a collection? We match parcels by face-up color and supply calibrated sizes for earrings and side stones. See fancy color lab-grown diamonds wholesale or send your reference stone or photo for a quote.