Are Synthetic Sapphires in Antique Rings Real?
Sep 21, 2026
by Melissa Mayntz — 5 min read
Does adding a synthetic sapphire to an antique ring damage the credibility and history of the piece? What if you discover that an antique ring you love actually has synthetic sapphires instead of natural gems? Is it still an antique? Understanding synthetic sapphires and how they have been used in antique rings can help you better understand the history of antique jewelry and why these stones may be original to the piece.
About Synthetic Sapphires
The word “synthetic” can have a lot of negative associations and stigma, with assumptions that artificial, lab-created, lab-grown, or manmade gemstones aren’t actually “real.” This is simply not true, however. Synthetic sapphires are a mineral form of corundum, the same as natural sapphires that were formed over millions of years of geologic processes. Both types of sapphires have the same optical refraction, a rating of 9 on the Mohs hardness scale, and the same chemical and physical properties. Both are “real” sapphires.
This is different than imitation sapphires, which are cut and colored glass or similar materials made to resemble sapphires on a casual, surface level, but with very different chemical and physical properties. Imitations may be made to resemble sapphires in color and shape, but they are not precious gems and do not have the same characteristics.
Benefits
Synthetic sapphires have a variety of benefits, depending on what qualities a buyer or collector values. In general, lab-grown sapphires are less expensive than natural stones, making them an attractive option for more limited budgets. Synthetic stones also have less environmental impact because no new mining operations are necessary to create the stones, meaning less destruction on delicate habitats.
Lab-grown sapphires can also seem more perfect than most natural sapphires. Because synthetic sapphires are created through a meticulous, carefully controlled process rather than by the random chance of nature, these artificial stones typically have far fewer flaws and inclusions than natural stones. While some people prefer the unique character that flaws or inclusions may bring to a stone, others prefer the perfect clarity and consistency of synthetic sapphires.
Value
Because they can be created much more easily than natural stones can be mined, synthetic sapphires are generally considered less valuable than natural sapphires. This is particularly true for resale value, as synthetic stones don’t tend to appreciate in value. This does not mean that synthetic sapphires are without value, however. As part of a sentimental piece, these stones can truly be priceless, whether they are original to the antique ring or may be replacements.
Using Synthetic Sapphires in Antique Rings
What many interested buyers don’t realize is that synthetic sapphires were already being incorporated into jewelry in the early 1900s. Now, more than a century later, those stones are themselves considered antiques, despite their artificial origins.
When new manufacturing techniques permitted the creation of synthetic sapphires, the process was not seen as any degradation or poor-quality substitute for natural stones, but rather a new and exciting technology that permitted highly consistent clarity, color, and size for amazing accents.This made synthetic sapphires a popular choice in Art Deco engagement rings, with their geometric designs and bold pops of color.
It is also possible to put more recently manufactured synthetic sapphires into an antique ring. This might be done when an original stone is lost and it could be too challenging or expensive to find a suitable natural stone as a replacement. Adding synthetic sapphires to refresh an antique ring could also be an easier way to add a favorite color or a traditional “something blue” to an antique engagement ring while still preserving the original flair of the antique piece.
While the word “synthetic” may cause momentary alarm for jewelry aficionados, understanding just how real synthetic sapphires truly are and their place in antique jewelry can help anyone better appreciate their beauty and distinction. Discover vintage sapphire rings where history, craftsmanship, and color come together.
Frequently Asked Questions
Are synthetic sapphires real sapphires?
Yes. Synthetic sapphires have the same basic chemical composition and crystal structure as natural sapphires. They are created in a laboratory rather than formed naturally in the earth and are different from imitation sapphires made from glass or other materials.
Were synthetic sapphires used in antique jewelry?
Yes. Synthetic sapphires were used in fine jewelry beginning in the early 1900s and became especially popular during the Art Deco period. Today, some of these early synthetic sapphires are antiques themselves.
Does a synthetic sapphire mean an antique ring isn't authentic?
No. An antique ring can be authentic to its period and contain synthetic sapphires that were part of the original design. Their presence does not automatically mean that a ring is a modern reproduction.
Suzanne Sachs
Suzanne has been in the jewelry industry for over 40 years, working with vintage jewelers, diamond dealers, diamond cutters, and gemologists. Suzanne started Artdecodiamonds in 2000 and understood the demand for vintage rings throughout the world. She ultimately started VintageDiamondRing.com in 2014, and understands each vintage ring is a reflection of you — your history, your relationships, your style, your elegance and is honored to have the opportunity to help you showcase your flair in a unique and exquisite way.
