gem-quality
Fit for cutting
Gem-quality describes stones suitable for use in jewelry—clear, well-colored, and free of significant flaws.
The term distinguishes valuable specimens from industrial-grade material: gem-quality diamonds, gem-quality emeralds.
Extended to other domains, it means exceptionally fine: gem-quality prose.
Entirely without fault
- clarityState of being understandable
- transparencyState of being see-through
- brillianceExceptional intelligence or luster
- carat200 milligrams exactly
certification · appraisal · valuation · investment-grade · top-tier · premium · exceptional · superior
Crystallized carbon gemstone
- rubyPrecious red gemstone
- sapphireBlue precious corundum
- emeraldGreen precious beryl
- opalHydrated silica gemstone
tourmaline · aquamarine · topaz · garnet · amethyst · tanzanite · spinel · alexandrite
Notably above the norm
- superbExtremely impressive, first-rate
- outstandingExceptionally good or unpaid
- pristinePure and untouched
- impeccableFree from any defect
exquisite · rare · precious · prized · treasured · first-rate · top-notch · elite
flawless
Entirely without fault
- clarityState of being understandable
- transparencyState of being see-through
- brillianceExceptional intelligence or luster
carat · certification · appraisal · valuation · investment-grade · top-tier · premium · exceptional · superior · finest
diamond
Crystallized carbon gemstone
opal · tourmaline · aquamarine · topaz · garnet · amethyst · tanzanite · spinel · alexandrite · jade
exceptional
Notably above the norm
- superbExtremely impressive, first-rate
- outstandingExceptionally good or unpaid
- pristinePure and untouched
impeccable · exquisite · rare · precious · prized · treasured · first-rate · top-notch · elite · exemplary
- Lab Diamondssynthetic diamonds, lab-grown diamonds, high pressure, high temperature, certification
gem-qualityinferior
Of lower rank
substandard · worthless · low-quality · defective · second-rate