21.70 Ct. Yellow Rough Sapphire from Ceylon (Sri Lanka)

One beautiful translucent 21.70 carat yellow sapphire offers a rare combination of size and natural presence, making it an excellent candidate for both collectors and bespoke jewelry projects. The stone measures 26.57 x 15.86 x 6.49 mm, and presents in a rough shape that preserves much of the material available to a skilled lapidary. The cut is not applicable for this piece, reflecting its rough outline and the opportunity it affords for custom cutting or for use as a statement rough in a contemporary setting. Clarity is graded as very very slightly included, evaluated at eye level, which means that any internal characteristics are minimal and do not detract from the gems overall visual impact. Color intensity is medium, delivering a warm, sunny yellow that is vivid enough to read clearly, while retaining natural depth and variation that appeals to educated buyers who prefer authentic, unoverly treated material. The polish is excellent, enhancing the surface lustre where facets or polished areas are present. This is a natural sapphire from Ceylon Sri Lanka, a provenance that carries historical significance and desirable market recognition.

The gem has not undergone any enhancement, which is a critical factor when assessing long term value and stability. No heat treatment or diffusion processes have been applied, and the stone is presented in its natural state, an important attribute for buyers seeking pure, untreated gemstones. Origin from Ceylon Sri Lanka contributes to desirability, as sapphires from this region are known for well balanced tones and attractive saturation. The clarity grade very very slightly included at eye level indicates that inclusions are minor and will not compromise durability, making this piece suitable for everyday wear following proper setting and care. The combination of translucency and medium color intensity produces a gem that photographs and presents beautifully in both direct and diffused lighting, revealing a warm glow rather than a flat tone. Excellent polish further ensures that any facets or smooth surfaces reflect light cleanly, supporting the appearance of vitality and quality that discerning collectors and clients expect.

This yellow sapphire is extraordinarily versatile, able to transition seamlessly between casual and formal contexts. In a relaxed daytime setting the stone can be set in a simple bezel or artisan style mounting to showcase its organic rough shape, pairing naturally with warm metals for an approachable, modern look. For formal occasions the same gem can be faceted or partially polished into a refined center stone, or set among accent diamonds or complementary gems to elevate the dramatic presence of the piece. The medium color intensity allows it to sit comfortably next to neutral wardrobe choices while still providing a clear focal point for more elaborate ensembles. For clients considering mixed gem designs, pairing the sapphire with White Opal can produce a compelling contrast. White Opal typically displays a pale to white body color with variable play of color that can include flashes of green, blue, red, or orange, and its soft luminous background highlights and complements the warm yellow tones of the sapphire. A combination of this Ceylon yellow sapphire with White Opal accent stones will balance warmth and iridescence, lending the piece both visual complexity and wearable elegance.

At The Natural Sapphire Company we prioritize transparency, accurate description, and responsible sourcing, and this yellow sapphire is presented with full disclosure of its origin and treatment status. The combination of significant carat weight, untreated status, Sri Lankan origin, and excellent polish makes this gem an important find for collectors, investors, and clients seeking an exceptional center stone for bespoke work. We can provide guidance on cutting options and setting styles to preserve weight while maximizing color and brilliance, and our team can arrange detailed imaging and viewing under controlled lighting to support an informed purchase decision. Proper care for this sapphire involves standard precautions for corundum, including avoiding prolonged exposure to extreme heat and protecting the stone from sharp blows, and routine cleaning with mild soapy water and a soft brush. If you are considering pairing this specimen with a White Opal or other gemstones we can advise on mounting strategies to protect both stones while optimizing aesthetic harmony. Contact The Natural Sapphire Company to discuss provenance documentation, cutting and setting services, and to arrange an inspection or secure purchase.