Gemstone Collection Beverly Hills

Rarity blends limited natural supply with desirable traits—color saturation, clarity, cut, and notable origins (e.g., Kashmir sapphire, no-oil Colombian emerald, unheated Burma sapphire, Paraiba tourmaline, fine spinel, alexandrite). Documentation and provenance further distinguish collector-grade stones from commercial quality.

Origin can influence color, scarcity, and value. Treatments (heat, oil, clarity fillers) affect stability, price, and collectability. “Unheated” sapphires and “no-oil” emeralds command premiums. We disclose all known treatments and provide reputable lab reports when available so you can compare like-for-like confidently.

Leading labs include GIA, AGL, GRS, and SSEF. Reports may note species/variety, natural vs. synthetic, origin opinions, and treatments. For investment-grade gems, we recommend primary lab reports and, when helpful, a second opinion to validate quality and reduce ambiguity.

Face-up size depends on cut. Use millimeter measurements (length × width × depth) to compare how a stone looks next to another of similar weight. Carat indicates mass; mm shows presence on the hand. We provide both so you can judge scale accurately for your design.

Diamond, sapphire, and spinel offer excellent durability. Emerald, tourmaline, tanzanite, and aquamarine are beautiful but need mindful wear—avoid hard knocks, ultrasonics, and harsh chemicals. We’ll advise settings (bezel, protective prongs, low profiles) that balance security, sparkle, and comfort for your lifestyle.

Fine color (saturation and tone), rarity of origin, clarity, cut precision, size jumps (e.g., 3.00ct vs 2.90ct), and treatment status move price. Crisp make, symmetry, and scintillation also matter. Documentation, matching pairs, and sought-after shapes can further increase value.