1.18 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This transparent 1.18 carat cushion shape yellow sapphire presents a measured and balanced presence for custom jewelry projects, offered by The Natural Sapphire Company. The stone measures 6.78 x 5.15 x 3.77 mm, and is faceted in a mixed brilliant cut that combines a faceting arrangement designed to optimize brilliance with the softer, rounded outline of the cushion form. Color intensity is assessed as medium, producing a luminous yellow tone that reads as both fresh and refined in a variety of lighting conditions. Clarity has been evaluated at eye level as very slightly included, indicating general eye clean appearance to most observers while retaining natural internal characteristics typical of fine sapphires. The finish on the pavilion and crown reflects an excellent polish, which enhances light return and surface luster. The gem has been stabilized using standard heat treatment, a widely accepted enhancement that improves color and clarity in corundum, and it originates from Ceylon, Sri Lanka, a source known historically for producing sapphires with lively hues and clean crystallography.

The cushion shape and the specific dimensions of this sapphire make it particularly well suited to bespoke settings that emphasize both classic and contemporary design language. At 6.78 mm by 5.15 mm, the stone offers a substantial face up area for a weight of 1.18 carats, making it an ideal candidate for center stone use in solitaire and halo rings, as well as for dramatic pendant designs. The rounded corners of the cushion profile provide natural protection against catching and chipping, which is an advantage for everyday wear designs. The mixed brilliant cut enhances scintillation across the table and crown facets, creating lively flashes that complement a halo of smaller stones or a minimalist bezel. Designers will find the proportions favorable for either prong mounted styles that show off the table, or for low profile settings that reduce snagging while preserving optical performance.

From a bench and design perspective the gem offers predictable and desirable handling qualities. The clarity grade of very slightly included at eye level means that inclusions are minimal and will not demand camouflaging in most settings, allowing the cutter and jeweler to focus on maximizing brilliance and stability of the mount. The 3.77 mm depth informs setting cup and prong planning, ensuring that metal profiles can be adjusted to secure the pavilion without obscuring the table. Heat treatment is stable under normal jewelry manufacturing processes, though care should always be taken with high temperature soldering near the stone, and a protective bezel or heat shield is recommended when heavy thermal work is performed on the surrounding metal. A four prong setting highlights symmetry for the cushion outline, while a rounded four prong or a six prong arrangement can enhance security and visual balance. Metal pairings are a design choice that will influence perceived warmth of the yellow, with 18 karat yellow gold amplifying the tone, and white metals providing a modern contrast that allows the color to read fresher.

As a gem selected and presented by The Natural Sapphire Company this 1.18 carat Ceylon yellow sapphire is offered with practical guidance for custom projects, and our gem specialists can advise on mounting options, prong and bezel profiles, and proportion adjustments to best integrate the stone into a bespoke piece. For designers and clients seeking a center stone that combines a manageable physical size with a pleasing face up presence and dependable optical performance, this cushion sapphire provides a strong balance of beauty and practicality. Additional close up imagery and detailed measurements are available upon request to assist in workshop planning and CAD modeling, and our team is prepared to collaborate on ring, pendant and alternative orientation concepts to ensure the final piece reflects the intended aesthetic and wearability goals.