Vietnamese Ruby - 3.59 ct, Untreated, GIA Certified

This 3.59 carat natural purple-red ruby represents a highly selective example of untreated material exceeding the three-carat threshold, supported by full laboratory documentation. Cut in an oval shape with a brilliant crown and step-cut pavilion (9.19 × 7.80 × 5.39 mm), the stone demonstrates strong internal life and balanced proportions designed to preserve both color density and transparency.

With VS clarity, this ruby occupies an upper investment-relevant tier within its size category. Minor internal features are present, observable under magnification, and consistent with natural formation. These characteristics form a refined internal structure that confirms the stone’s untreated state without compromising overall brilliance or visual coherence.

The accompanying GIA Ruby Origin Report states “No indications of heating” and identifies the geographic origin as Vietnam. Within the global ruby market, GIA documentation represents the highest standard of institutional verification. For collectors and investors, untreated status confirmed by GIA is a primary value driver, often outweighing marginal differences in color tone or origin prestige.

Vietnamese rubies remain comparatively scarce on the international market, particularly in unheated condition above three carats. Stones of this profile are increasingly evaluated as select investment assets, positioned between flagship auction-grade material and purely decorative gemstones.

This ruby was curated as a defensible, documentation-driven asset. While fully suitable for bespoke high jewelry, its primary value lies in its untreated integrity, VS clarity, and verification by the most authoritative gemological institution.

Investment Positioning

• Natural ruby above 3.50 ct
• VS clarity
• No indications of heating
• GIA Origin Report
• Select-tier investment classification

Gemological Disclosure

This ruby contains minor natural internal features consistent with unheated corundum. These characteristics are inherent to its geological formation and serve as confirmation of its natural and untreated state. They do not affect the stone’s stability or long-term durability.