GCAL 8X is the top cut grade from GCAL by Sarine. A diamond earns it only by scoring Excellent in all eight cut factors: polish, external symmetry, proportions, optical brilliance, fire, scintillation, optical symmetry and shape aesthetics. One Very Good in any factor and it doesn't qualify. According to GCAL, fewer than 1% of round diamonds graded Excellent qualify for 8X. GCAL now applies the same eight-factor standard to ovals and other fancy shapes. GCAL measures light performance on each diamond with its own imaging, so the fire and brilliance results on this page are this stone's, not a sample.

Every image is GCAL's photograph of this exact diamond.

• 360° video: the stone turning, as you'd see it in your hand.
• Fire video: the flashes of color and sparkle as the diamond moves under light.
• Top and bottom views: the diamond face-up and from below.
• Hearts & Arrows (round diamonds): the symmetry patterns seen through a special viewer.
• Brilliance (other shapes): white areas show light returned to your eye.
• Symmetry: how evenly the facets line up.
• Proportions: its measured angles and dimensions.

The diamond you see is the diamond you receive. It ships with its GCAL certificate. If it isn't right for you, you have 14 days from delivery to return it, with no restocking fee. Email hello@areliajewelers.com first.