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An emerald cut is a rectangular step-cut diamond with cropped corners, a large open table, and long parallel facets instead of brilliant-cut wedges — producing broad, mirror-like flashes of light rather than scattered fire. Guru Diam stocks emerald cut as IGI-certified, CVD-grown lab-grown loose diamonds, with 596 pieces currently on hand from our New York Diamond District desk.
What is an emerald cut diamond?
An emerald cut is a rectangular (occasionally square) step cut: cropped corners, a wide open table, and rows of long, parallel, concentric facets running down the crown and pavilion instead of the small triangular and kite-shaped facets of a brilliant cut. That step faceting produces a different kind of sparkle than a round or princess — fewer, broader flashes instead of scattered fire, an effect often described as "hall of mirrors." Because the table is so open, clarity and color are more visible face-up than in a brilliant cut of the same grade, which is why the shape is generally paired with higher clarity grades in trade sourcing.
Why emerald cut is trending in modern engagement rings
Emerald cut has moved from a secondary option to a lead request, and the reason is visual, not just trend-driven: the large open table and rectangular outline give it a bigger face-up appearance per carat than most brilliant cuts, and the step faceting reads as understated and architectural rather than maximalist — a look that fits the current shift toward vintage-modern and minimalist engagement ring styles. It also sets cleanly in bezel, halo, and three-stone configurations without the corner-protection concerns of princess or radiant, which makes it an easy shape to move across a range of settings and price points.
Emerald cut spec and what to check
- Length-to-width ratio. Classic emerald cut runs 1.30–1.50 L:W; outside that range it reads as either too square or too narrow, so confirm exact measurements against the shape name rather than relying on the label alone.
- Clarity. Because the open table hides inclusions less than a brilliant facet pattern, buyers sourcing emerald cut should generally spec one clarity grade higher than they would for a round of the same size.
- Step count and depth. More concentric steps generally means a cleaner "hall of mirrors" effect; depth typically runs 60–68%.
| Spec | Detail |
|---|---|
| Outline | Rectangular, cropped corners |
| Facet style | Step-cut (parallel, concentric facets) |
| Typical L:W ratio | 1.30–1.50 |
| Growth method | CVD-grown |
| Certification | IGI standard; GIA available on request |
| Stone type | Certified single stones (not melee) |
| On-hand count | 596 pieces |
| Sourcing path | In-stock or made-to-order |
Setting and prong considerations
Emerald cut's cropped corners are less chip-prone than princess or radiant, but the long, exposed step facets along the girdle mean the setting still needs to distribute pressure evenly rather than concentrate it. Four-prong and bezel settings are both standard; a bezel adds extra edge protection and is common for buyers who want the shape's clean lines uninterrupted by metal. Because the open table shows the culet and any facet misalignment clearly, symmetry grading matters more here than on a brilliant cut of comparable size — worth checking alongside the standard color and clarity grades before committing to a stone.
Sourcing emerald cut wholesale
Guru Diam carries emerald cut as trade-only, wholesale inventory — no retail markup — from our New York Diamond District desk (36 West 47th Street, Suite 601A) and our Los Angeles office (607 South Hill Street). At 596 pieces on hand, emerald cut is one of our deepest standard categories, with size, color, and clarity range to match. In-stock pieces ship same-day from New York; a custom setting runs CAD-to-finished-piece in 4–6 days.
Emerald cut is also available in fancy color, showing hue as a deep, even wash rather than scattered sparkle. See our fancy color emerald cut guide for that side of the category.
Ready to buy? Open a verified wholesale account at /signup and book time with a gemologist at /book-appointment.
FAQ
What is an emerald cut lab-grown diamond? An emerald cut is a rectangular step-cut diamond with cropped corners, a large open table, and long parallel facets that produce broad, mirror-like flashes of light instead of scattered fire — often described as a "hall of mirrors" effect.
Why do emerald cut diamonds show inclusions more than round diamonds? The open table and step faceting reflect light in long, flat planes rather than breaking it into small brilliant flashes, which makes inclusions and color more visible face-up. Buyers typically spec one clarity grade higher for emerald cut than they would for a round of the same size.
Is IGI or GIA certification available for emerald cut lab-grown diamonds? IGI is standard across Guru Diam's emerald cut inventory, with GIA available on request.
How many emerald cut diamonds does Guru Diam have in stock? 596 pieces as of this writing, one of our deepest standard shape categories, from our New York Diamond District desk.
How fast can I get an emerald cut stone or a finished custom piece? In-stock pieces ship same-day from New York. Made-to-order cutting plus a finished custom piece (CAD to jewelry) runs 4–6 days from our New York and Los Angeles desks.
