The round brilliant cut sparkles the most of all diamond shapes. It features 58 carefully crafted facets that maximize light reflection, making it the top choice for brilliance and fire. That said, oval, cushion, and radiant cuts also deliver stunning sparkle all available in lab-grown diamonds at GiliBili.

Oval cut diamonds have an elongated shape that gives the appearance of greater size and makes fingers look longer and slimmer. Marquise and pear shapes also create the illusion of a larger stone. Fancy shapes like oval, cushion, or emerald can look 10–15% larger than a round diamond at the same carat weight, making them excellent value choices.

The only distinguishable feature in a lab-grown diamond is a microscopic inscription identifying its origin. To the naked eye and even to most jewelers without specialized equipment they look completely identical. You cannot tell the difference by looking.

Lab-grown diamonds cost 60–85% less than natural diamonds. A 1-carat lab-grown diamond costs $700–$1,500 versus $4,000–$6,000 for a natural stone of equal quality. That savings can go toward a larger stone, a more intricate setting, or simply keeping more in your pocket.

Brilliant-cut shapes like round, oval, cushion, and pear are the most forgiving on clarity their many facets scatter light and make minor inclusions much harder to see. Step-cut shapes like emerald and Asscher have large, open facets that act like windows into the stone, so they show inclusions more visibly. If you're choosing a lower clarity grade, a brilliant cut is the smarter choice.

A bow-tie is a dark, shadow-like area that appears across the center of certain diamond shapes. It can appear in fancy shapes like oval, cushion, and emerald, and also in pear, marquise, and heart cuts. The severity varies from stone to stone, a well-cut lab-grown diamond will have a minimal bow-tie. This is why viewing each stone individually (or in HD video) before purchasing is important.

Yes. Any diamond that weighs 0.15 carats or more should come with a grading report from a reputable gemological laboratory. The grading report assesses quality using the Four Cs — cut, color, clarity, and carat weight — and also denotes the origin and growth method. At GiliBili, all our lab-grown diamonds solitaire come certified so you know exactly what you're buying.

Lab-grown diamonds may have low or limited resale value in the secondary market, but this is not a drawback. It's a reflection of how they are created, priced, and intended to be enjoyed. With a lab diamond, you spend a fraction of the price upfront, so even if resale value is minimal, your total financial exposure is far lower than with a mined diamond. The value of a lab-grown diamond is in the massive savings you keep upfront — money that can go toward a home, a honeymoon, or upgrading to a larger, more stunning stone