All Diamonds

Not a diamond; this gemstone appears to be an alexandrite or a color-change synthetic corundum/sapphire due to the disti...

Natural Diamond (estimated, requires laboratory testing for definitive confirmation) (Oval Brilliant)

Natural Diamond (Assumed based on appearance, though lab-grown or simulants like cubic zirconia cannot be definitively r...

Natural Diamond (likely) (Oval Brilliant)

Natural Diamond (visual assessment) (Oval Brilliant)

Natural Diamond (Round Brilliant)

Not a diamond; this is a raw mineral crystal cluster, likely quartz or calcite matrix. (Raw, uncut crystal cluster (uncu...

Natural Diamond (Round Brilliant)

Natural Diamond (estimated based on setting context) (Round Brilliant)

Cubic Zirconia (Round Brilliant)

Natural Diamond (Presumed based on context, though testing needed) (Round Brilliant)

Mixed parcel of small melee-sized natural and synthetic simulants (Mixed cuts including round brilliant and various smal...

Cluster of small pink and white stones (likely pink sapphires/tourmalines and accent diamonds or cubic zirconia) (Round ...

Natural Diamond (accent stones in a 14K gold setting) (Round Brilliant (accent stones))

The main colored stones appear to be pink sapphires or tourmalines arranged in cluster settings, accompanied by small ac...

Natural or Lab-Grown Diamond (Visual assessment inconclusive without testing) (Emerald Cut)

Natural Diamond (Round Brilliant)

Natural (Round Brilliant (accent stones), center cluster likely pink gemstones (sapphires or tourmalines with diamond ac...

Natural (Uncut / Rough Diamonds) (Rough / Raw Crystalline (Octahedral and Macle forms))

Natural Diamond (Estimated) (Round Brilliant)

Natural Diamond (Oval Brilliant)

Natural or Lab-Grown Diamond (Oval Brilliant)

Natural Diamond (Emerald Cut and Round Brilliant Cut)

Laboratory Grown Diamond (Pear Brilliant)

Natural (Marquise)

Natural Diamond (Princess Cut)

Natural Diamond (Cushion Cut with Halo and Pave Band)

Natural Diamond (Round Brilliant)

Lab-Grown (Princess)

Natural Diamond (with pavé-set accents) (Round Brilliant (Center stone))

Lab-Grown (Princess)

Likely diamond simulant (such as Cubic Zirconia or Moissanite) due to visual dispersion characteristics, or potentially ...

Natural Diamond (Assumed based on appearance, requires testing) (Round Brilliant)

Cubic Zirconia / Simulated Diamond (Oval Brilliant)

Cubic Zirconia or Synthetic Moissanite (Round Brilliant)

Natural diamond (estimated based on visual appearance) (Oval Brilliant)

Cubic Zirconia (Simulant) (Oval)

Cubic Zirconia (Simulant) (Oval)

Cubic Zirconia (Simulant) (Oval Brilliant)

Cubic Zirconia (Simulant) (Oval Brilliant)

Cubic Zirconia (Oval)

Natural Diamond (or potentially Lab-Grown, requires testing for certainty) (Oval Brilliant)