Luxury Born Beneath the Earth
How to Buy Gemstones
Professional guidelines from N7 Gems & Co experts to help you make informed decisions and invest wisely in precious gemstones.
Understanding the 4 C's of Gemstones
Color
The most important factor in gemstone valuation. Look for:
- Vivid, saturated hues with optimal tone and saturation
- Even color distribution throughout the stone
- Pure colors without unwanted secondary hues
- Natural color - always verify if any color enhancement has been applied
Clarity
Refers to the presence of internal inclusions or external blemishes:
- Eye-clean stones are preferred for investment quality
- Natural inclusions can sometimes add character and authenticity
- Location matters - inclusions in less visible areas are more acceptable
- The type of inclusion affects the value differently across gemstone varieties
Cut
Determines how light interacts with the stone:
- Proportions should maximize brilliance and color
- Symmetry ensures even light reflection
- Polish quality affects the stone's final appearance
- Traditional cuts often preserve maximum carat weight
Carat Weight
Size matters, but quality is paramount:
- Larger stones are exponentially rarer and more valuable
- Sweet spots exist for each gemstone type where value peaks
- Consider proportions - a well-cut smaller stone often appears larger
- Investment potential increases significantly with size for rare stones
Essential Certification Requirements
Always Demand Certification
- GIA (Gemological Institute of America) - Global gold standard
- GRS (Gem Research Swisslab) - Leading European authority
- SSEF or Gübelin - Prestigious Swiss laboratories
- Avoid uncertified stones regardless of price advantages
What Certificates Should Include
- Natural origin confirmation - synthetic detection
- Treatment disclosure - heating, oiling, or other enhancements
- Country of origin - geographical source identification
- Detailed measurements and weight specifications
- Quality grading according to international standards
Investment-Quality Characteristics
Rarity Factors
- Origin significance - stones from legendary mines command premiums
- Exceptional quality - top 1% characteristics in color and clarity
- Size rarity - larger specimens of fine quality are increasingly scarce
- Historical significance - provenance can add substantial value
Market Appreciation Potential
- Emeralds: Colombian, Zambian, and Pakistani stones with vivid green
- Sapphires: Kashmir, Burma, and Ceylon origins with exceptional color
- Rubies: Burmese pigeon blood and Mozambique fine quality
- Rare varieties: Padparadscha sapphires, fine alexandrite, demantoid garnet
Red Flags to Avoid
Pricing Concerns
- Too good to be true pricing often indicates synthetic or heavily treated stones
- Pressure sales tactics - legitimate dealers allow time for consideration
- No return policy - reputable dealers stand behind their products
- Vague descriptions - avoid sellers who can't provide specific details
Certification Issues
- Unknown laboratories - stick to internationally recognized institutions
- Modified or questionable certificates - verify directly with the issuing lab
- Verbal promises - all treatments and characteristics must be documented
- Missing documentation - never purchase significant stones without certificates
Smart Buying Strategies
Research Before You Buy
- Market prices - understand current fair market values
- Dealer reputation - work with established, reputable sources
- Comparative shopping - evaluate multiple options before deciding
- Investment timeline - consider your long-term ownership goals
Professional Consultation
- Independent appraisal - consider third-party valuation for significant purchases
- Gemologist consultation - seek expert advice for complex decisions
- Insurance evaluation - ensure proper coverage from purchase date
- Documentation preservation - maintain all certificates and purchase records
Care and Maintenance Considerations
Durability Factors
- Hardness rating - understand Mohs scale implications for daily wear
- Treatment stability - some enhancements require special care
- Setting requirements - certain stones need protective mounting styles
- Cleaning protocols - different gemstones require specific care methods
Long-term Value Protection
- Professional cleaning - regular maintenance preserves beauty and value
- Secure storage - proper storage prevents damage and loss
- Insurance updates - regular appraisals ensure adequate coverage
- Documentation safety - secure storage of certificates and purchase records
Making Your Final Decision
- Visual appeal - the stone should captivate you personally
- Comfort level - feel confident in the dealer and transaction
- Investment logic - ensure the purchase aligns with your goals
- Professional validation - seek expert confirmation for significant investments
N7 Gems & Co Advantage
When you choose N7 Gems & Co, you benefit from our direct mining operations, certified gemologist expertise, and partnerships with the world's most prestigious laboratories. Our commitment to ethical sourcing, transparent documentation, and exceptional quality ensures that every gemstone purchase represents both beauty and sound investment potential.
Remember: The best gemstone is one that combines exceptional quality, proper certification, and personal appeal, creating a treasure that will be cherished for generations.
New Arrival
Highest Quality
Learn about our jewelry making process & what makes our rings so special

