Limited Time: Every Engagement Ring Includes a $250 Gift Card for your Wedding Bands

Pick a Lab Diamond

FAQs

SI1 means 'Slightly Included 1,' with inclusions visible under magnification and sometimes to the naked eye. At 3 carats, SI1 in a round brilliant has a reasonable chance of eye-clean appearance because the round cut provides the best inclusion concealment. However, the larger size means more careful selection is needed.
Yes, many SI1 round brilliants at 3 carats are eye-clean. The round cut's 57-facet sparkle provides the strongest inclusion concealment of any shape. At 3 carats, the success rate is lower than at 1-2 carats but still reasonable. Focus on stones with favorably positioned inclusions.
SI1 offers very significant savings at 3 carats. The round brilliant gives you the best odds of eye-clean appearance at this grade. Selective shopping with individual stone verification can yield excellent value. The round cut's sparkle advantage over other shapes makes SI1 more viable here than in step or transparent cuts.
SI1 clarity is in many brilliant cuts eye-clean in round cut diamonds. Inclusions noticeable under 10x magnification, sometimes visible to the naked eye depending on the cut. At 3 carats, the larger face can make inclusions slightly more visible than at smaller sizes. The round cut's brilliant-cut faceting helps mask minor inclusions.