Cubic Zirconia or High-Dispersion Simulator
Cubic Zirconia or High-Dispersion Simulator · Round Brilliant
Very Good Cut
Carat
Estimated approximately 3.0 to 4.0 carats visually
Color
Colorless (equivalent to D-E on diamond scale)
Clarity
Internally Flawless visual appearance
Shape
Round Brilliant
Overall Assessment
The gemstone displayed is a large, eye-clean round brilliant simulant, most likely cubic zirconia, mounted in a simple prong setting. While it offers impressive sparkle and size visually, it lacks the physical properties, rarity, and monetary value of a genuine mined or lab-grown diamond.
Cut Quality
Very Good
Brilliance
High white light return, characteristic of high-refractive-index simulants
Fire
Excessive spectral dispersion (stronger fire than a natural diamond)
Scintillation
Good flash and pattern of light and dark areas
Proportions
Standard modern round brilliant proportions with deep pavilion
Symmetry
Good
Polish
Good
Fluorescence
None observed
Inclusions
None visible to the naked eye
Blemishes
Minor surface scratches possible due to wear
Origin
Synthetic / Manufactured laboratory creation
Treatment Detection
No treatments, purely a synthetic cubic zirconia material
Estimated Value
Low market value ($20 - $100 USD as fashion jewelry)
Certification Estimate
Not eligible for GIA or AGS grading as a natural or lab-grown diamond; would receive synthetic lab report if tested
Investment Potential
Poor; synthetic simulants do not retain or appreciate in financial value
Similar Diamonds
Comparable to high-end cubic zirconia or synthetic moissanite solitaires
Setting Suggestions
Currently mounted in a simple multi-prong basket setting using white base metal
Care & Maintenance
Clean with mild soap, warm water, and a soft brush; avoid harsh chemicals and ultrasonic cleaners if plated
Interesting Facts
Cubic zirconia has a lower hardness (8-8.5 on Mohs scale) compared to diamond (10) and tends to get cloudy over time as it accumulates micro-scratches