Loading...
GSI 0.87 Carat Octagonal Tanzanite
Share
GSI Certified • In Stock

GSI 0.87 Carat Octagonal Tanzanite

Octagonal shape • BLUE color • SI clarity
$-3 Save 6289%
$172
GSI Certified
Certificate Number 73697960101

30-day hassle-free returns · No restocking fees · Free return shipping on overnight orders

Free Insured Shipping
30-Day Money-Back Guarantee
Inspected by a GIA Certified Gemologist
Lifetime Warranty Options
Authorize.Net Verified Merchant
Family-Owned Since 1999 — The USA Jewels Advantage
Carat Weight ⓘ0.87 ct
Type ⓘTanzanite
Shape ⓘOctagonal
Color ⓘBLUE
Clarity ⓘSI
Origin ⓘTANZANIA
Treatment ⓘHeated
Measurements ⓘ6.89 × 4.94 × 3.06 mm
Lab ⓘGSI
Certificate73697960101
Gemstone Insights
Color: BLUE
Color is the most important quality factor for Tanzanites. Rich, saturated hues with even distribution command the highest premiums. Learn more
Clarity: SI
Clarity expectations vary by gem type. Tanzanites are evaluated with the unaided eye; minor inclusions are acceptable in most colored stones. Learn more
Heat Treated
Industry-standard, permanent enhancement that improves color. Widely accepted and does not diminish long-term value. Learn more
Origin: TANZANIA
Origin can influence value significantly. TANZANIA is a notable source for fine Tanzanites. Learn more
GSI Certified
Certified by GSI, an independent gemological laboratory. Learn more
Gemstone Guide
Tanzanite Guide
Learn More →
Certification
GSI Guide
Learn More →
Treatment Guide
Gemstone Treatments
Learn More →
Comparisons
Gemstone Comparisons
Learn More →