1.73 Ct. Cabochon Boulder Opal from Australia

If you are searching for a singular centerpiece for an engagement ring, a striking accent for a bespoke pendant, or a rare gem to add to a careful collection, this Boulder Opal from Australia answers that search with confidence, and The Natural Gemstone Company is proud to present it to you, This beautiful opaque multi color opal weighs 1.73 carat, a notable weight for an opal of this type, and measures 9.40 by 6.91 by 3.45 mm, An oval shaped cabochon with a medium intense color intensity and an excellent polish, this stone displays a vivid interplay of blues and greens across its surface, The opal is a doublet, which means a thin slice of precious opal has been carefully assembled on a backing that enhances stability and color, and the result is a stone that reads larger and brighter on the finger than its dimensions alone might suggest, For someone who values provenance and natural origin, this opal traces directly back to Australia, the classic source of world class opal, and it carries the distinct character that collectors and designers seek.

The 1.73 carat weight is a defining feature of this gem, and it is the reason this opal stands out as both a rare find and a practical choice for high impact jewelry, In opals weight is more than a number, because carat translates into surface area for the play of color, and into the visual presence of the gem when set into a ring or pendant, a 1.73 carat Boulder Opal of this oval profile offers enough mass to ensure the colorful patches are broad and coherent, rather than fragmentary, which elevates the perceived quality and the wearing experience, Larger opals with even color distribution are less common in nature, and when you pair that relative scarcity with the meticulous work required to assemble a doublet you are buying not only a beautiful surface, but a piece that represents careful selection and skilled craftsmanship, The dimensions 9.40 by 6.91 by 3.45 mm combine with the carat weight to create a comfortable and elegant scale for an engagement ring or a statement pendant, and the cabochon cut maximizes the color play so that every movement catches and redirects light into lively flashes, The excellent polish further heightens the gem to the eye, delivering a glossy surface that allows the opal colors to read with clarity and depth.

At The Natural Gemstone Company we understand that your search ends with a gem that matches your needs for beauty, rarity, and confidence in origin, This 1.73 carat Boulder Opal is positioned to satisfy collectors who desire a larger opal that still retains the classic Australian character, and it is equally suited to couples who want an engagement gem that is distinct from traditional stones yet equally meaningful and durable when set properly, Because this opal is a doublet it offers an optimal balance between appearance and practicality, the backing provides reinforcement that makes the stone easier to set without sacrificing the vivid multi color play that makes opal so desirable, If you are considering a bespoke setting our team can advise on bezel styles, low profile mounts, and protective approaches that preserve both the stone and the setting, We invite you to envision this oval cabochon centered on the hand, catching light and conversation, and to contact The Natural Gemstone Company for additional photographs, setting recommendations, and to arrange a secure purchase, Your search for a rare and show stopping opal can conclude with this finely polished 1.73 carat Boulder Opal from Australia, a gem that combines meaningful weight, authentic origin, and refined craftsmanship.