Fine aquamarines are a marriage between color and clarity. The best are dark blue to slightly greenish blue with no visible inclusions. Careful cutting maximizes both qualities to produce superb gems.
Aquamarine is pastel blue, greenish blue, or green-blue. The preferred aquamarine color is a dark blue to slightly greenish blue with moderate intensity and is most striking in gems of over 5-cts. Fine stones show even blue color across the entire stone.
Most faceted aquamarines are free of eye-visible inclusions. Collectors generally expect clean gems with good transparency.
Aquamarines can be cut into almost any shape, but cutters often fashion them as emerald cuts or as round or oval brilliants. Many gem artists use aquamarine for one-of-a-kind designer cuts because their styles maximize the material’s pure, even color and high clarity.
Aquamarines are relatively hard and suitable for daily wear. Care should be used in storage to avoid chips and scratches; separate it from other jewels in it's own bag or box. To clean, use warm soapy water to gently clean them regularly. After cleansing wipe with a clean, dry, soft cloth.