5.09 Ct. Ametrine from Brazil

There are gemstones, and then there are rare statements of nature that arrive almost ready to be worn as a legacy. This 5.09 carat emerald cut bi color ametrine from Brazil is exactly that kind of treasure, offered now through The Natural Gemstone Company in a strictly limited quantity. Measuring 12.80 by 9.24 by 6.78 millimeters, this transparent gem carries a medium intense color intensity that elegantly balances the warm golden citrine notes with the cool amethyst violet, producing a living transition that is visible across each step of the emerald cut. The clean, architectural lines of the cut and the excellent polish allow light to travel and reflect with serene precision, giving the gem a dignified presence whether mounted as a statement ring or set as the centerpiece of a bespoke pendant. We present it to a discerning few who understand that true rarity is not only in weight and color, but in the provenance, the story, and the moment of exclusivity that ownership confers.

What elevates this ametrine beyond mere measurements and color descriptions are the internal characteristics, the inclusions that act as the gemstone’s fingerprint, proving its natural origin and long geological history. Graded as very very slightly included at eye level, the stone carries only the subtlest internal features, delicate enough to maintain its transparency and brilliance, yet intimate enough to tell its own story. Look closely and you will see fine, feather like wisps and tiny pinpoint mineral traces that trace gentle lines where color transitions from purple to golden. These subtle linear landmarks and minute crystalline traces are not blemishes, they are signatures, each one marking a precise moment when heat and time shaped crystal into color. Rather than detract, these inclusions add depth and character, creating miniature landscapes within the stone that catch the eye and engage the imagination, making each viewing a private discovery.

The masterful emerald cut and the stone’s exceptional polish work together to showcase both the bi color phenomenon and the quiet beauty of the internal character. Step cutting is known for its refined elegance, and in this ametrine it emphasizes the two tone nature with graceful bands of hue that appear to float between the gem’s facets. The result is a piece that reads as high jewelry, suited to settings that respect its geometry and color story. We disclose that the gem has been heat treated, a standard and stable enhancement used responsibly to stabilize and gently intensify hue. This treatment is fully disclosed by The Natural Gemstone Company, and it remains an accepted practice among connoisseurs because it preserves the gem’s natural charm while improving visual harmony. For those seeking certification, we can assist in arranging independent lab documentation, or provide our own detailed provenance notes that describe origin, weight, clarity, color intensity, and the nature of any enhancement.

Owning this ametrine means joining a select group of collectors and clients who value authenticity, scarcity, and refined design. The Natural Gemstone Company curates each gem with care, offering tailored advice on settings, metal choices, and design approaches that will best honor this stone’s bi color personality and step cut elegance. We recommend thoughtful settings that allow light to pass and emphasize the color transition, such as open galleries and minimal prongs, and we suggest metals that frame the colors without overpowering them, with platinum or warm 18 karat gold being particularly flattering. Gentle care will keep this gem radiant, using warm soapy water and a soft brush for cleaning, avoiding harsh abrasives and extreme impacts, and removing the jewel during heavy manual activity. This ametrine is a conversation piece, a wearable testament to geological artistry and human craftsmanship, offered now in very limited supply, and available through The Natural Gemstone Company to the client who seeks something unmistakably unique.