First, the thing the name gets wrong: this is an emerald-cut diamond, not an emerald. The cut is called emerald because the shape was developed for emerald crystals; the stone itself is a laboratory grown diamond, colorless and 10 on the Mohs scale. It weighs 1.01 carat, measures 6.86 x 4.77 x 3.11 mm, and grades D color and VS 1 clarity on IGI report LG615348220. Which is the whole argument for this stone, because an emerald cut hides nothing.
1.01 Carat
D Color
VS 1 Clarity
Emerald Cut Diamond
IGI LG615348220
1.44:1 Ratio
An emerald-cut diamond, not an emerald
The confusion is built into the vocabulary, so it is worth clearing up before anything else. Emerald here is the name of a cut — a rectangular step cut with cropped corners, originally devised so that brittle emerald crystals could be faceted without cleaving. Applied to diamond, it produces one of the most recognizable silhouettes in jewelry. IGI describes this stone on its report as a LABORATORY GROWN DIAMOND with the shape and cutting style EMERALD CUT. There is no green stone anywhere in this listing. What you are buying is a colorless diamond in a rectangular step cut.
A laboratory grown diamond is a real diamond: identical carbon lattice, identical hardness, identical optical behavior, graded on the same scales IGI uses for any diamond and separable from a mined stone only by specialist equipment. Never a simulant, never an imitation. If you want that spelled out properly, read are lab grown diamonds real diamonds and the side-by-side in lab grown vs natural diamond.
Why D and VS 1 matter most on this shape
This is the honest core of the listing. A round brilliant scatters light through fifty-seven small facets, and that visual noise is forgiving — it disguises a faint warm tint and it swallows a small inclusion. An emerald cut does the exact opposite. Its facets are long, flat, parallel planes arranged in steps, and the table is wide and open. You are looking through the stone rather than at a shower of sparkle. Every property of the diamond is on display, all the time.
That is why a D color grade — the very top of the scale, no detectable body color at all — earns its keep on an emerald cut in a way it arguably does not on a brilliant. And it is why VS 1, very slightly included with inclusions a grader needs 10x magnification to locate, is the sensible clarity for a shape whose open table shows you the interior. Pairing the two is not over-specifying. On a step cut it is simply what a clean stone requires. The report also records Excellent polish and Excellent symmetry, which is what keeps the parallel facet rows even and the corners square, and fluorescence: None. No cut grade is stated on this report, and we will not supply one it does not carry. Our 4Cs of diamonds guide explains the grading scales, and the lab grown diamond price guide covers what those grades cost.
6.86 by 4.77: what a 1.44 to 1 ratio does on a hand
Divide the length by the width and this stone sits at roughly 1.44:1 — a classic, moderately elongated emerald cut, neither stubby nor dramatically stretched. That ratio is doing visible work. An elongated outline draws the eye along the finger instead of across it, which is why emerald cuts have a reputation for making a hand look longer and more slender. At 6.86 mm of length it also spends its carat weight on face-up area rather than on depth, so it reads larger than a 1.01 carat round of the same weight.
Practically, the long axis is also the shape’s one design constraint: an emerald cut wants to sit north-south along the finger, and its corners need protection because they are the points a knock finds first. See the shape as finished jewelry in emerald cut engagement rings, or compare it with the near-square sibling in Asscher cut engagement rings.
What to build around it
Emerald cuts reward restraint. A four-prong solitaire on a slim band lets the step facets do everything; a bezel or half-bezel wraps the vulnerable corners and doubles as a design line that echoes the stone’s own geometry. Tapered baguettes on either side are the traditional partner and turn the piece unmistakably Art Deco. A hidden halo adds width under the stone without cluttering the top view. Pendants and east-west settings both suit the shape for the same reason: it is a clean rectangle, and clean rectangles frame well.
This diamond is offered as a customizable loose stone, so Aquamarise can build a design around it rather than fitting it into something that already exists. Browse lab grown diamond engagement rings and hidden halo engagement rings for direction, then read engagement ring styles and setting types and how much to spend on an engagement ring. The rest of the loose inventory is in loose lab grown diamonds, and finished pieces live in diamond jewelry.
Specifications
-
Report IGI LG615348220
-
Report date January 2, 2024
-
Description Laboratory grown diamond
-
Shape & cutting style Emerald cut (a diamond, not an emerald)
-
Measurements 6.86 x 4.77 x 3.11 mm
-
Length to width Approximately 1.44:1
-
Carat weight 1.01 carat
-
Color grade D
-
Clarity grade VS 1
-
Cut grade Not stated on the report
-
Polish Excellent
-
Symmetry Excellent
-
Fluorescence None
-
Inscription IGI LG615348220
-
Comments None — this report states no growth method
-
Birthstone April
-
Custom setting Available — this stone can be set into a design of your own
-
Included Free luxury gift box + free USA shipping
Certification & care
The diamond ships with IGI report LG615348220, issued January 2, 2024, and carries the matching laser inscription IGI LG615348220 on its girdle. The number on the paper and the number on the stone are the same, which is how you or any future appraiser confirms that a given report belongs to a given diamond. IGI report numbers can be looked up directly in the laboratory’s own online report database. For how the two major laboratories differ, read IGI vs GIA certification; our diamond transparency page sets out what we document and why.
One thing this report does not record is a growth method. The comments field is empty, so we make no claim about how the diamond was grown — not CVD, not HPHT, not anything else. The report simply does not specify it, and inventing a process to fill the gap would be a fabricated spec. Everything we state about this stone comes off the report itself.
All three dimensions a setter needs are on the report: 6.86 mm long, 4.77 mm wide, 3.11 mm deep. Hand those to whoever makes the mounting and the head gets built to the stone. Clean the diamond with warm water, a drop of mild dish soap, and a soft toothbrush, then dry it on a lint-free cloth; the open table of an emerald cut shows a film of skin oil faster than any other shape, and it comes off in under a minute. Store it in its holder or a padded single-stone box, never loose against other diamonds, since diamond is the only thing hard enough to scratch diamond. Cleaning jewelry at home and caring for your engagement ring cover the routine once it is set.
Frequently Asked Questions
Is this an emerald or a diamond?
A diamond. Emerald cut is the name of the shape, a rectangular step cut with cropped corners that was originally developed for emerald crystals. IGI describes this stone on its report as a laboratory grown diamond with the shape and cutting style emerald cut. There is no green gemstone involved.
Is a lab grown diamond a real diamond?
Yes. It is the same carbon crystal structure as a mined diamond, with the same hardness of 10 on the Mohs scale and the same optical properties, graded on the same scales. Telling a grown diamond from a mined one requires specialist laboratory instruments. It is not a simulant and not an imitation.
What does the IGI report cover, and how do I verify it?
IGI report LG615348220, issued January 2, 2024, records the description, shape and cutting style, measurements, carat weight, color grade, clarity grade, polish, symmetry, fluorescence, and the inscription. The report number can be looked up in IGI’s own online report database, and it matches the number laser-inscribed on the stone.
What is the laser inscription?
The girdle carries the microscopic text IGI LG615348220, written with a laser on the outer edge of the stone where a setting conceals it. It is invisible without magnification, and it permanently links this diamond to this report.
Does the report say how the diamond was grown?
No. The comments field on this report is empty, so the growth method is simply not specified. We will not state one either way, because anything we said about it would not come from the paperwork.
Why do D color and VS 1 clarity matter more in an emerald cut?
Because a step cut hides nothing. A round brilliant scatters light through many small facets, which disguises a faint tint and swallows a small inclusion. An emerald cut has long, flat, parallel facets and a wide open table, so you look through the stone rather than at a shower of sparkle. D color and VS 1 clarity are what keep that transparency looking clean.
Does the report state a cut grade?
No, and we will not assign one it does not carry. What the report does record is Excellent polish and Excellent symmetry, which on a step cut is what keeps the facet rows parallel and the corners square.
What does the 1.44 to 1 ratio look like on a hand?
Length divided by width gives roughly 1.44 to 1, a classic moderately elongated emerald cut. An elongated outline draws the eye along the finger rather than across it, which is the reason this shape has a reputation for making a hand look longer and more slender. It is neither stubby nor dramatically stretched.
How does carat weight relate to millimeter size?
Carat measures weight; millimeters are what you see. This diamond weighs 1.01 carat and measures 6.86 x 4.77 mm across the face with a depth of 3.11 mm. Because an elongated shape spends its weight on face-up area rather than depth, it tends to read larger than a round of the same carat weight. Always compare millimeters when comparing stones.
Can this stone be set into a ring, and who does the setting?
Yes. It is offered as a customizable loose diamond, and Aquamarise can build a design around it. A jeweler carries out the setting itself and the final band sizing, working from the report measurements so the head fits this stone exactly. Emerald cuts do best with prongs or a bezel that protect the four cropped corners.
Will this stone test as a diamond?
Yes. A standard thermal or electronic diamond tester reads it as diamond, because it is diamond. Separating a laboratory grown diamond from a mined one takes specialist instruments that read growth signatures, which is precisely why the inscription and the report exist.
Is a lab grown diamond conflict-free?
Yes. A laboratory grown diamond has a documented origin from the moment it starts growing, so there is no ambiguity about where it came from. Our guide on what makes jewelry ethical covers sourcing in more depth, and the ethical sourcing page sets out our own position.
Is a loose lab grown diamond a good investment, and can I have it appraised?
On investment we would rather be honest than promissory: buy it to wear, not as a financial instrument, because lab grown diamond prices have moved a great deal in recent years and nobody can credibly forecast the next move. Appraisal is a different matter and is straightforward with a graded stone, since the report and inscription identify it precisely. Our appraisal page explains how.
How does it ship, and what if I need to return it?
The diamond ships free within the USA, insured in transit, in a free luxury gift box with its report. Delivery specifics are on our shipping page. The policy that governs a loose stone is set out in full on our returns and refunds page, and that is the place to read it rather than a summary here.
How do I clean and store a loose diamond?
Warm water, a drop of mild dish soap, a soft toothbrush, then a lint-free cloth. The open table of an emerald cut shows skin oil faster than any other shape, so a quick clean makes a visible difference. Keep the stone in its holder or a padded single-stone box, never loose with other diamonds, because diamond is the only material hard enough to scratch diamond.
