Moissanite Buying Guide
A useful moissanite comparison starts with what you can see and verify: shape, millimetre dimensions, cut, colour, clarity and setting. Carat-equivalent labels can help with a rough visual comparison, but they are not a standard unit of moissanite quality.
- 1Shape
- 2Millimetre size
- 3Cut quality
- 4Colour and clarity
- 5Setting
- 6Report and details
Carat labels are not a reliable size comparison across different gem materials. Use millimetre dimensions.
1. Choose the shape and facet pattern
Shape describes the outline. Facet pattern describes how the stone is cut inside that outline. Two stones with the same shape and dimensions can look different because their proportions and facets differ.
- Round: usually gives an even pattern of brightness and fire.
- Oval, pear and marquise: create a longer outline. Check for an overly dark bow-tie across the centre.
- Emerald and baguette: use broad step facets. They show clarity, colour and facet alignment more readily.
- Cushion and radiant: vary widely by cut. Compare videos rather than relying on the shape name alone.
- Princess: has pointed corners that need secure protection in the setting.
2. Compare size in millimetres
Moissanite is less dense than diamond, so stones of the same physical dimensions do not have the same weight. For a reliable size comparison, check length, width and depth in millimetres. Face-up area matters more than a carat-equivalent label.
Also compare the stone with the ring or earring dimensions. A halo, bezel or wide band can make the finished piece look larger, while a low setting can make it feel more compact.
3. Review cut quality
Cut controls how light moves through the stone. A well-cut stone should look balanced when it moves, without a large dull centre, obvious windowing or distracting dark areas.
What to inspect in a video
- Brightness across the centre and edges
- Symmetry of the outline and facet pattern
- Any persistent dark bow-tie in elongated shapes
- Whether the culet appears noticeably doubled through the crown
- How the stone looks in daylight and ordinary indoor light
4. Assess colour and clarity in context
Colourless and near-colourless moissanite can both appear bright. A faint warm or grey cast may be easier to see in larger stones, step cuts and white-metal settings. Lighting and camera settings also affect colour, so do not judge from a single edited photograph.
Clarity grades describe inclusions, but minor inclusions that are not visible without magnification may have little effect on appearance. Ask whether the grade applies to the individual stone or to a product range.
5. Match the setting to how the piece will be worn
| Setting | What to know |
|---|---|
| Prong | Shows more of the stone. Prongs should be even, secure and checked periodically. |
| Bezel | Surrounds the edge for added protection. It can reduce the visible face-up area slightly. |
| Halo | Adds visual spread and more small settings that may need inspection over time. |
| Pavé | Creates surface sparkle. Fine beads and small stones need gentler handling. |
| Low profile | Sits closer to the finger and may catch less. Check that a wedding band can sit as intended. |
Metal choice affects appearance, maintenance and price. If the piece is sterling silver, confirm the 925 fineness mark and any plating or finish. Sterling silver can tarnish; plating can wear over time and may need renewal.
6. Read the report and product details together
A stone report may identify the material and list measurements or grade ranges. It does not assess the workmanship of the finished jewellery unless the report specifically says so. HIDL and/or GRA documentation is available on request for applicable Myraé pieces.
Before you order
- Confirm the stone's length, width and shape.
- Ask for an unfiltered video in more than one light source.
- Check the metal, fineness, plating and finish.
- Review the setting height, band width and total item dimensions.
- Confirm the ring size using the Ring Size Guide.
- Read the size-exchange, return, shipping and care terms before payment.
- Confirm which certificate or report, if any, is included with the item.