Lab teal sapphire. Octagon step cut. 10×8mm bezel solitaire on a split-shank band — a substantial, color-forward geometric solitaire.

This teal sapphire solitaire ring features a 10×8mm lab-created teal sapphire in an octagon step cut — an eight-sided variation of the emerald cut, with the same rectangular step facets but with the corners cropped into eight sides rather than the emerald cut's typical four — held in a full bezel setting on a polished split-shank band. The octagon's broad, open table displays the teal sapphire's color across its entire face without the interruption of a complex brilliant facet pattern, making the stone's green-teal saturation the primary visual element. The 10×8mm stone size is substantial — a confident, prominent solitaire with significant visual presence on the finger. Available in 925 sterling silver, silver with yellow plating, silver with rose plating, or gold alloy in whole and quarter sizes from US 3 to 9 3/4. Handcrafted in Jaipur.

Ring Details

• Stone: Lab-created teal sapphire — octagon step cut, green-teal, September birthstone
• Stone Size: 10×8mm — a substantial, prominent solitaire
• Setting: Full bezel — continuous metal border around the entire stone perimeter
• Band: Split-shank — divides at the shoulders to frame the bezel base
• Metal Options: 925 Sterling Silver · Silver with Yellow Plating · Silver with Rose Plating · Gold Alloy
• Sizes Available: US 3 to 9 3/4 including quarter sizes
• Birthstone: Sapphire is the September birthstone

Teal Sapphire: The Green-Blue Zone

Teal sapphire occupies the color space between blue sapphire and green sapphire — a zone that is neither distinctly blue nor distinctly green, but a saturated blue-green or green-teal that shifts in emphasis depending on the light source. Teal sapphires have become increasingly sought-after in engagement and bridal jewelry over the past decade as an alternative to both traditional blue sapphire and pure green stones, appealing particularly to buyers drawn to nature-inspired color palettes — the color of deep water, of old-growth ferns, of the sky just before a storm. Like all sapphire, teal sapphire is corundum with a hardness of 9 Mohs — the second hardest gemstone after diamond — making it one of the most durable choices for daily wear. The specific teal color is caused by the combined presence of both iron (which produces blue) and titanium and/or vanadium (which can shift toward green), in proportions that sit in the teal zone rather than fully resolving to either blue or green.

Why Octagon Cut and Bezel for a Color Stone?

Step-cut stones — the family that includes emerald cut, Asscher cut, and octagon cut — are cut with broad, flat parallel facets that reflect light in large, calm planes rather than the scattered, multi-directional brilliance of a brilliant cut. For a colored gemstone like teal sapphire, this matters: brilliant faceting in a colored stone breaks the stone's color into many small, separately reflecting facets that can make the color appear busy or fragmented. Step facets, by contrast, allow the color to read across large, unified planes — the stone's saturation visible as a coherent whole rather than as thousands of tiny colored points. The octagon's eight-sided outline also provides slightly more corner protection than the standard four-cornered emerald cut while maintaining the same step-facet character. The full bezel setting reinforces this approach: by wrapping the stone's perimeter in a continuous metal border, the bezel frames the stone as a single unified color field — no prongs interrupting the stone's outline, the metal frame acting as a clean border that defines the stone's shape without competing with it.

Care Instructions

• Remove before swimming, showering, or applying lotions and perfumes (especially for plated finishes)
• Sapphire is 9 Mohs — extremely durable for daily wear; clean gently with warm water, mild dish soap, and a soft-bristled brush
• Store in a dry, closed box when not worn

Sizing & Packaging

Please refer to our size guide image before ordering. Your ring ships in secure protective packaging. Any display boxes or props shown in photos are for styling purposes only.

Questions about sizing, metals, or custom requests? Message us — we're happy to help.