White Sapphires vs Diamonds
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What is White Sapphire?
Although blue is the most popular (and expensive) sapphire color, white sapphires have become popular alternatives to diamonds for engagement ring stones.
Are White Sapphires Natural?
While some white sapphire is mined, it can be grown in a lab, too. Natural and lab-made sapphires have the same optical and physical properties, so most consumers can’t distinguish a natural, faceted sapphire gem from a synthetic one. Gemologists may be able to find some telltale differences.
Will My Center Stone be Conflict-Free and Ethically Sourced?
Unlike diamonds, colored gemstones don’t go through the Kimberley Process. This is an international agreement to track diamonds from mine to market in order to keep them from being sold to finance wars. This is what makes it possible to purchase diamonds certified as conflict-free.
However, white sapphires sell for lower prices than diamonds, so they’re less likely to be sold to support conflicts. Tracing a mined white sapphire back to its source is also usually easier than tracing a diamond. Still, gemstone mining can raise many other ethical issues, such as the use of child labor or environmental destruction.
Whether you choose a diamond or a white sapphire, as long as you buy from a reputable dealer, you can be confident that your stone was ethically sourced.
White Sapphire vs Diamond
Although these stones might look alike, they’re actually quite different. Let’s compare them in terms of beauty, durability, and price.
No matter what, a well-cut diamond will show more brilliance, dispersion, and scintillation than a well-cut white sapphire. That means that diamonds will appear brighter (brilliance), have more colorful flashes (dispersion or “fire”), and sparkles of light (scintillation) than sapphires.
Even from a distance, you can see the sparkle and fire of this oval-cut diamond in a halo setting. Photo © James Allen. Used with permission.
On the other hand, white sapphires will look softer than diamonds.
These oval-cut white sapphires in a three-stone halo setting have a white glow of color, without the fireworks of diamonds. © CustomMade. Used with permission.
Ultimately, you’ll have to decide what look appeals to you most.
Hardness and Durability
Sapphires have excellent hardness and durability. No doubt, you’ll hear that sapphire’s Mohs hardness of 9 is much lower than diamond’s 10. Nevertheless, practically speaking, that difference makes little difference.
A gemstone’s hardness measures its resistance to scratching. At a hardness of 10, only another diamond could scratch a diamond. However, only a diamond or a moissanite could scratch a sapphire. So, unless you’re planning on rubbing all your jewelry together, you really don’t have to worry about scratching your sapphire.
Both diamond and sapphire will resist scratches from everyday hazards, like fingernails, coins in your purse or pocket, countertops, and even household dust (which has a hardness of 7).
Durability (or tenacity) measures a gemstone’s resistance to physical blows. In other words, it gives you an indication of how hard you have to hit it before it chips or breaks. As it turns out, most gemstones are brittle, including diamonds and sapphires, and chips and breaks can happen in just about any stone. It’s not any more frequent in sapphires than diamonds.
Hardness and durability concerns shouldn’t influence your choice of either a diamond or a white sapphire.
Price and Size
Of course, white sapphire is the clear winner in terms of price and size. White sapphires are much less expensive than diamonds at any given carat size. Therefore, for the same bite out of your engagement ring budget, you can get a much bigger white sapphire than a diamond.
That said, if you’re trying to find a white sapphire that will simulate or imitate a diamond, their differences become much more obvious in larger sizes. So, stick to a smaller stone if you want your white sapphire to look like a diamond.
On the other hand, if you simply like the look of a white sapphire and don’t care that it’s not a diamond, you can get a sizable rock for your ring.
Choosing a White Sapphire Center Stone
If you decide to go with a white sapphire, how can you find the right one? Colored gemstones, like white sapphires, are evaluated differently than diamonds. It’s more difficult to compare them based solely on color, clarity, and cut grades.
Don’t let this discourage you. With the money you’ve saved by not choosing a diamond, you should be able to find a beautiful white sapphire center stone. By working closely with your jeweler, you’ll find the best gem your budget will allow.
Many white sapphires have a milky or cloudy appearance. This goes beyond their characteristic soft, white glow. For an engagement ring, try to choose the most transparent stone you can.
All sapphires typically contain inclusions — tiny mineral crystals or fractures that formed within these gemstones. Try to find a white sapphire that appears eye-clean. That means you can’t see any inclusions when you hold the stone about 6 inches from your eyes. (The stone may actually contain inclusions visible under magnification, but you can’t see them with the naked eye).
Cut Shape and Quality
White sapphire comes in a variety of cuts and shapes. If you’re going for a diamond lookalike appearance, you might opt for a traditional round cut.
Cut quality will greatly affect the appearance of your sapphire. If you have the budget for it, try working with a custom gem cutter. A precision custom cut will ensure you get the most sparkle from your center stone.
Types of Treatments
Make sure you know if your gemstone received any treatments or enhancements. Some are safe, permanent improvements. Others are not.
For example, heat treatments are routine for sapphires, and the results are permanent. Almost all sapphires receive this treatment. Heating will improve color and clarity and is an accepted practice in the gem trade.
On the other hand, some white sapphires might receive coatings to make them appear whiter. Scratches from normal wear and tear can removing the coating. Other sapphires undergo a diffusion treatment which alters the outer layer of the stone itself. Nevertheless, this treatment can come off if you have your stone repaired or re-polished.
Avoid purchasing fracture-filled sapphires. These contain leaded glass that makes the gems appear to have better clarity. Although less expensive than non-filled gems, some have so much glass they’re more “hybrid gems” than sapphires.
You can learn more about sapphire treatments here.
Finding the Best White Sapphire
Your best bet is to work with a jeweler you can trust. Evaluating white sapphires and understanding their treatments can be quite confusing. A knowledgeable jeweler can help you choose a good stone.
We recommend working with the experts at CustomMade. They can source a beautiful white sapphire and explain everything you need to know about its quality and care. Plus, they’ll set that gem in a completely unique ring made to suit you perfectly.