Diamond is usually the first gem you think of for an engagement ring. However, sapphire can be a great alternative to provide colour, individuality and a different symbolism.
Sapphire and diamonds are both beautiful gems that have been used in fine jewellery for centuries. Both are very durable and can be valuable depending on the quality of the gem.
Diamond is better in terms of scratch resistance and sparkle. Sapphire is an excellent option if you’re looking for colour, individuality and potentially cheaper gemstones.
Sapphire Engagement Rings vs Diamond Engagement Rings – Key Differences
Sapphire and diamond are completely different minerals.
Diamond is made from carbon in a crystalline structure.
Sapphire belongs to the corundum family. This means it is made up mainly of aluminium oxide.
Sapphire is mostly known for being blue but can actually come in many different colours such as pink, yellow, teal, green, purple, peach and white.
Corundum that is red is classed as ruby.
The main differences are summarized below.
| Feature | Sapphire | Diamond |
| Mineral | Corundum | Diamond |
| Chemical composition | Aluminum oxide | Carbon |
| Mohs hardness | 9 | 10 |
| Appearance | Blue and many other colors | Colorless and fancy colors |
| Main visual appeal | Color and depth | Brilliance and fire |
| Everyday durability | Excellent | Excellent, with superior scratch resistance |
| Typical price | Often more accessible than comparable natural diamonds | Broad range, especially with lab-grown options |
| Traditional symbolism | Loyalty, wisdom, sincerity | Enduring love, commitment, strength |
| Natural and lab-grown options | Both available | Both available |
| Engagement-ring suitability | Excellent | Excellent |
Neither gem is better, but it will depend on what the person wants.
Sapphire Engagement Rings vs Diamond Engagement Rings – Cost
One of the most common questions asked is whether sapphire is more expensive than diamond.
Often sapphire will be cheaper. However, if you go for a high quality natural sapphire that has a great colour, clarity, large carat size and comes from a prestigious area, then it can be very expensive.
Diamonds can vary greatly in price too.
Diamonds are often graded based on the 4Cs:
- Cut.
- Colour.
- Clarity.
- Carat.
This means that a high quality cut can really make a diamond sparkle.
Diamonds that are clear with a great combination of size, clarity, colour and cut can be quite expensive. However, there are now lab grown diamonds which can be cheaper.
Don’t assume that diamonds will always be more expensive.
Sapphires can vary greatly in price as colour plays a big part.
Factors to consider when purchasing a sapphire:
- Colour – Hue, Tone & Saturation.
- Clarity.
- Cut quality.
- Carat.
- Natural or Lab grown.
- Treatment.
- Origin.
Fine natural sapphires with a great saturation can be expensive.
Great untreated sapphires can be much more expensive than a commercial quality diamond.
Winner: Often sapphire can be cheaper but it depends on the individual gemstone.
How much do sapphire engagement rings cost?
This depends on the type of gemstone and setting you choose.
With lab grown sapphires you may find coloured engagement rings are more affordable.
Natural sapphires can vary greatly in price depending on the quality of the colours.
The setting can also affect the price of the ring.
A simple 14k gold sapphire solitaire will not require as much work as an intricate platinum ring with side diamonds.
If you’re looking for sapphire engagement rings then the best thing to do is look at the centre stone and setting separately.
This will help you to understand if the price is due to the quality of the gemstone, precious metal, bespoke design or extra diamonds.
Sapphire Engagement Rings vs Diamond Engagement Rings – Cheaper?
Often. However, sapphire can be a great option if you want a nice colour. It may mean you can go for a larger centre stone within your budget.
However, sapphire and diamonds won’t have the same density so even if they’re the same carat size, they won’t be the same size. Sapphires may be cut deeper to keep the colour. Therefore, you should look at the mm size.
Oval sapphire and diamond may look different even though they are the same weight.
Look at the actual gemstone size, quality and price.
Sapphire Engagement Rings vs Diamond Engagement Rings – Durability
Diamond wins here.
Diamond scores a 10 on the Mohs scale whereas sapphire scores 9.
Both are very hard gemstones meaning they’re great for everyday wear. However, don’t get confused by the numbers. The Mohs scale isn’t a linear scale.
Diamond will be much more scratch resistant.
Does sapphire scratch easily?
No. Sapphire is very scratch resistant. It scores a 9 on the Mohs scale which means it will be more scratch resistant than emerald, aquamarine, tourmaline, opal & many other popular gemstones. Overall, it will be great for everyday wear.
Can diamonds break?
Yes. Although the hardness rating relates to how scratch resistant it is, it can still chip if hit in the right place.
Sapphires can chip or break if hit with enough force.
Neither gem is unbreakable.
Winner: Diamond (scratch resistant).
Overall: Excellent choice.
Is sapphire durable for an everyday engagement ring?
Yes. It is one of the most practical coloured gemstones. It scores a 9 on the Mohs scale and generally has good toughness. However, the setting can affect how durable it is over time.
If the setting is poor then the sapphire may not be as durable. Whereas if it is well designed then the sapphire will be safe. Diamonds can also be lost if the prongs get damaged.
Overall it is important to regularly check the ring and treat it sensibly.
Which gemstone is more low maintenance?
Diamond will generally be more scratch resistant but both will require cleaning.
Diamonds attract oils and can get dirty from makeup, skin products and everyday use.
Sapphires can also get dirty and attract oils.
To give them a quick clean warm water, mild soap and a soft brush will usually be sufficient for an untreated gemstone that is well set. However, some treatments and ring styles may require extra care.
The Gemological Institute of America’s sapphire care and cleaning guide to caring for your sapphire. It explains how durable they are and why knowing the treatment is helpful.
Both diamond and sapphire shouldn’t be worn during any activity with lots of impact, heavy machinery or anything abrasive.
Sapphire Engagement Rings vs Diamond Engagement Rings – Appearance
It depends on whether you like the colour or sparkle.
Diamond:
High quality cut diamonds are prized for their white light reflections and dispersion of light to create the sparkle you see in traditional diamond engagement rings. The quality of the cut will affect how it looks.
Sapphire:
Sapphires are generally chosen for their colour. A blue sapphire will often have a rich blue colour. Teal sapphires will have both blue and green tones. Pink sapphires can range from pale pinks to vibrant pinks. Yellow sapphires have warm golden tones.
They can be bright and beautiful but won’t have the same sparkle and fire as a high quality cut diamond.
Diamond for sparkle. Sapphire for colour.
Are all sapphires blue?
No. Sapphires come in a wide range of colours.
Blue is the most traditional. However, you can get other colours.
Blue Sapphire:
Classic choice for coloured gemstones. Blue sapphire will look great in a traditional solitaire, trilogy, halo or vintage style.
Pink Sapphire:
A warmer option. Can range from pale to vibrant pink. Can look great in rose gold or yellow gold.
Teal Sapphire:
Blue and green tones. Great for modern and nature inspired engagement rings.
Yellow Sapphire:
Warm coloured option. Can range from pale lemon to golden. Can create an interesting contrast with white gold or platinum.
White Sapphire:
A clear variation of corundum. Can look like a clear alternative to diamond but generally won’t have the same sparkle and fire. One of the best things about sapphires is that they come in a wide range of colours.
Sapphire Engagement Rings – Symbolism
Sapphire has traditionally been associated with loyalty, wisdom, sincerity & faithfulness.
They can be a great choice for engagement rings to symbolise your commitment and trust. Blue sapphires are often associated with this symbolism. However, this is not a scientific property.
You can have a pink, yellow or teal sapphire and give it any meaning you want. Some people may prefer to go for an unusual colour to make the ring more personal.
Diamond Engagement Rings – Symbolism
Diamonds are traditionally associated with long lasting love, commitment, strength & permanence. They have an amazing hardness. Diamond engagement rings have become very popular due to jewellery traditions and marketing in the twentieth century.
Many couples like to go for diamonds as they appreciate the sparkle and are a familiar choice. Some people simply like the look of diamonds.
There is no requirement to have a diamond in your engagement ring to symbolise your commitment.
Sapphire Engagement Rings vs Diamond Engagement Rings – More Meaningful?
It depends on the couple. You may feel it has more meaning due to the colour, history or personal reasons. If you love blue gemstones then you may prefer a sapphire over a diamond regardless of the price.
If you like traditional gemstones or have always pictured wearing a diamond engagement ring then you may feel it has more meaning. Neither gem has a superior meaning. The best choice will be the one that reflects your personal preferences and relationship.
Sapphire Engagement Rings vs Diamond Engagement Rings – Active Lifestyle
Diamond will generally be the better choice due to its amazing scratch resistance. However, sapphire is also a practical choice. The setting can play a big part.
A low profile bezel setting may protect the gemstone more than a high prong setting. If you work with your hands then it is important to choose a secure setting.
Regardless of the gemstone it is best to take the ring off during weight lifting, gardening, building or contact sports.
Neither gem should be worn during all activities.
Sapphire Engagement Rings vs Diamond Engagement Rings – Best Setting
Both gemstones are versatile.
Solitaire:
Simple look with just one centre stone. Diamond solitaire will have lots of sparkle. Sapphire will have lots of colour.
Trilogy:
Can have varying sizes and colours. A sapphire centre with diamond side stones works really well.
Halo:
Smaller diamonds around the centre. Can add sparkle and make the ring stand out.
Bezel:
Metal band around the gemstone. Can add extra protection.
Vintage Inspired:
Both gemstones can look great with ornate metalwork, engraving and milgrain. The best setting will depend on the shape, size and everyday use of the gemstone.
Sapphire Engagement Rings vs Diamond Engagement Rings – Best Metal
Both gemstones look great with yellow gold, white gold, rose gold & platinum. However, they will look different.
Yellow gold will give a warm look. Can look very contrasting with blue or teal sapphires.
White gold will give a cool look. Looks great with clear diamonds and coloured sapphires.
Rose gold can compliment pink sapphires and create some interesting contrasts with blue or green stones.
Platinum will give a natural white metal. Often used in bridal jewellery. With sapphires it is a good idea to look at the actual gemstone and compare it to the different colours of metal.
The colour of the metal can affect how the gemstone looks.
Sapphire Engagement Rings vs Diamond Engagement Rings – Natural or Lab Grown
Both gemstones can be found in natural or lab grown versions.
Natural Sapphire:
Formed naturally. Value can depend on how rare it is, colour, size, origin and if it has been treated.
Lab Grown Sapphire:
Created in a controlled environment. Has the same mineral and crystal structure as natural sapphires. Generally cheaper.
Natural Diamond:
Naturally formed. Value will depend on the 4Cs, rarity & market.
Lab Grown Diamond:
Created in a controlled environment. Has the same chemical composition and crystal structure. Generally cheaper than natural diamonds.
The key difference is the origin.
Sapphire Engagement Rings vs Diamond Engagement Rings – Ethical & Sustainable
Neither gem is automatically more ethical or sustainable. It depends on how they are sourced, extracted, processed, manufactured & supplied.
Natural gemstones will have been mined. Lab grown gemstones will require equipment and energy.
It will depend on how they are made. Ask about the origin, treatments, traceability & responsible sourcing.
The precious metals in the ring will also affect the environmental impact.
Sapphire Engagement Rings – Unique
Sapphires have a wider range of colours than traditional clear diamonds. This can make them an attractive choice if you’re looking for something less traditional. A teal sapphire in an asymmetrical gold setting will look very different to a traditional blue solitaire. Pink and yellow sapphires can also add more options. However, diamonds can also be very unique. Fancy colours, unusual cuts, bespoke settings & unique accent stones can create unique designs. The main benefit of sapphires is that there are many colours available at an affordable price within a durable family of gemstones.
Sapphire Engagement Rings vs Diamond Engagement Rings – Final Decision
To make an informed decision ask yourself:
Do you want a certain look? If you love sparkle then diamond may be the best choice. If you want a bold colour then sapphire may be more appealing.
How important is scratch resistance? Diamond is the best choice but sapphire is also extremely scratch resistant.
What is your budget? Don’t assume one is always cheaper than the other. Look at individual gemstones.
Do you want traditional or alternative? Diamond is the more traditional choice. Sapphire can be both traditional and alternative.
What meaning is important to you? Both gemstones have different histories but it is more important to you personally.
Sapphire Engagement Rings – If…
- You want coloured gemstones.
- You want a blue, pink, teal, yellow or other sapphire.
- You like having a durable alternative to traditional diamonds.
- You want to try different price points.
- You want a unique coloured engagement ring.
Diamond Engagement Rings – If…
- You want the most scratch resistant.
- You love the sparkle.
- You want a traditional look.
- You want a clear gemstone with great sparkle.
- You like the established grading system.
Both gemstones are excellent choices for engagement rings. Just make sure you choose the right gemstone and setting.
FAQs
Are sapphires a better choice than diamonds for engagement rings?
Sapphires are a better choice if you want colour and individuality. Diamond will be more scratch resistant and have more sparkle. Both are great for everyday wear.
Are sapphires cheaper than diamonds?
Often yes. Especially if you’re looking at affordable natural sapphires compared to high quality natural diamonds. However, high quality natural sapphires can be more expensive than some diamonds.
Are sapphires as durable as diamonds?
Sapphires are extremely durable but aren’t as scratch resistant. They score 9 on the Mohs scale whereas diamonds score 10.
Can you wear sapphire engagement rings everyday?
Yes. It is one of the most practical coloured gemstones. It has great hardness and generally good toughness.
What does a sapphire engagement ring symbolise?
Traditionally sapphires have been associated with loyalty, sincerity, wisdom & faithfulness. This isn’t a scientific property.
Do sapphires sparkle?
They can be bright and beautiful but generally won’t have the same sparkle and fire as high quality cut diamonds.
Is a blue sapphire more valuable than a diamond?
It can be. High quality natural sapphires can be expensive. However, diamond value depends on quality, size & origin.
Can sapphires & diamonds be combined in an engagement ring?
Yes. Sapphires with diamond accents are a popular choice. They give you colour with sparkle.
Do sapphires scratch easily?
No. They score 9 on the Mohs scale making them very scratch resistant. However, they can be scratched by diamond & some other hard materials.
Final Thoughts
Both sapphires and diamonds are excellent choices for engagement rings. However, they have different benefits.
Diamond will give you the most scratch resistance, sparkle & traditional look.
Sapphires will give you a wide range of colours, excellent durability & more individual designs.
The price will depend on the quality, size, origin & treatments of the individual gemstone.
Overall if you want the most sparkle & scratch resistance then diamond is still a great choice. However, if you want a durable gemstone with a unique colour then sapphires have a lot of flexibility. Ultimately the best choice will depend on your personal style, everyday lifestyle & meaning.
Written by: S.G
