blue precious stone gem birthstone engagement rings 1.31 ct. loose gemstones for sale as best affordable engagement rings
Blue Sapphire Cushion Cut 1.31 Carat – Natural Loose Gemstone for Custom Rings
This 1.31 carat blue sapphire is a natural, cushion-cut loose gemstone suited for engagement rings, alternative wedding rings, or bespoke jewellery designs. With its soft pastel to sky-blue colour range and balanced proportions, this sapphire offers an elegant option for buyers seeking a refined yet distinctive precious stone. Carefully selected for quality and presentation, it is suitable for collectors and custom jewellery projects alike.
Blue sapphires are valued globally for their durability, timeless appeal, and suitability for everyday wear. This gemstone is professionally cut and heat treated using standard industry practices to enhance clarity and appearance while maintaining its natural origin. Its size and shape make it especially versatile for ring or pendant settings.
✨ Gemstone Details
- Gemstone: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Sapphire
- Shape/Cut: Cushion
- Clarity: VS
- Weight: 1.31 carat
- Colour: pastel / sky / pale blue
- Measurement: 7.00 x 5.50 x 3.80
- Treatment: heat treated
- Birthstone: September
Sellers comments – Has crystal dust inclusion on magnification
This sapphire is supplied with a certificate from an authorized gemologist confirming its identity and treatment disclosure.
Custom Jewellery & Usage Options
This is a loose sapphire and does not come set in a ring. It may be used for custom engagement rings, pendants, or other fine jewellery designs. We offer custom jewellery services in gold, rose gold, white gold, silver, platinum, and diamond-accented settings. Please contact us to discuss design options or suitability.
Browse related selections and educational resources: Ceylon Blue sapphire collection | Natural Sapphire Collection | All sapphire | Ready to Wear Jewelry | Contact us | Gemstone Education Articles | Nash Gems
Why choose a blue sapphire for an engagement or custom ring?
Blue sapphires are among the most sought-after precious gemstones due to their durability, classic appearance, and long-standing use in fine jewellery. Cushion-cut sapphires offer a balance between brilliance and soft geometry, making them a popular option for both traditional and modern settings. Their durability makes them suitable for everyday wear when properly set.
Shipping & Returns
Worldwide shipping is available. Orders are shipped securely with tracking and insurance. Buyers are responsible for any applicable customs or import duties. Returns are accepted within 15 days of delivery, provided the gemstone is returned unused and in original condition.
WORLDWIDE SHIPPING
Free standard shipping worldwide! Item will be shipped from Sri Lanka with tracking number and fully insured. Delivery time is 7 - 10 business days (Due to Covid-19 delivery might take longer). Buyers are responsible for any customs and import taxes that may apply.
RETURNS
We have a 100% money back policy in case of any dis-satisfaction. You may return it within 15 days of receipt of same in original, unused and same condition. A refund would be processed after we receive the gemstone back.
We hope you enjoy your purchase and will consider us for future purchases. Please feel free to contact us with any questions or requests. Thanks.
IMPORTANT FACTS
- All our gemstones are natural and earth-mined. Each of the stones displayed are inspected carefully and are cut and polished by professionals. This enables us to provide high quality gemstones at a wholesale price.
- Our gemstones are not lab created, have not received any chemical treatments,. We sell gemstones which are either 100% natural or treated with basic heat treatment. You can find this information under specification for each product.
- Earth-mined gem stones naturally consists of natural inclusions such as feathers, colour bands, needle like inclusions, crystals. These might be visible under a 10x lens.
- Due to fluctuations in different scales please allow ± 0.1 cts for each stone. This will not affect the final price.
- In order to give you a better look of our products, we work hard to get images from different angles. However we guarantee you that the real gemstone is prettier than the images.
Please do not hesitate to Contact us for any questions or requirement.
Choose options
WHAT ARE NATURAL BLUE SAPPHIRES?
-
Natural blue sapphires are precious gemstones from the corundum family, valued for their stunning blue color ranging from light to deep royal blue. Each stone’s hue and saturation contribute to its beauty and rarity.
WHAT IS A CEYLON SAPPHIRES?
-
Ceylon sapphires refer to natural sapphires mined from Sri Lanka (formerly known as Ceylon). These gemstones are celebrated for their exceptional brilliance, clarity, and lighter yet vivid blue hues.
Unlike darker sapphires from other regions, Ceylon sapphires have a luminous quality that allows light to pass beautifully through the stone, making them a favorite among collectors and fine jewelers worldwide.
WHAT IS A ROYAL BLUE SAPPHIRES?
-
A Royal Blue sapphire is known for its deep, velvety blue color — rich, intense, and evenly saturated. This luxurious hue is considered the “ideal blue” for fine jewelry and is often found in high-end gemstones from Sri Lanka, Kashmir or Myanmar (Burma)
-
Its regal tone symbolizes nobility, wisdom, and power — famously worn by royals, including Princess Diana’s iconic engagement ring.
WHAT ARE CORNFLOWER BLUE SAPPHIRES?
-
Cornflower Blue sapphires are prized for their soft, medium-light blue color with a slight violet undertone — reminiscent of the delicate cornflower blossom. These sapphires, especially from Kashmir and Sri Lanka, are treasured for their vivid yet soft tone, often described as “pure” blue without being too dark or pale.
-
Collectors value them for their gentle, romantic color balance — ideal for elegant, timeless jewelry.
WHAT ARE PALE BLUE SAPPHIRES?
-
Pale Blue sapphires display a lighter, icy blue tone that feels fresh and subtle. Though less saturated, these sapphires have an airy brilliance and are often chosen for minimalist jewelry or pastel-inspired engagement rings.
-
Their understated elegance makes them an affordable and graceful choice for those who prefer delicate hues over deep saturation.
WHAT ARE VIVID BLUE SAPPHIRES?
-
Vivid Blue sapphires showcase the most intense and lively blue tone within the sapphire spectrum. Their color is rich, electric, and full of energy, with superior light reflection and saturation.
-
Stones in this category are extremely rare, especially when combined with high clarity and size. They make stunning centerpieces for engagement rings and statement jewelry.
WHAT ARE NATURAL SAPPHIRES?
-
A Natural sapphire is a gemstone formed in the Earth over millions of years without any synthetic or lab-created processes. Many natural sapphires undergo gentle heating to enhance clarity or color — a common and accepted treatment in the gem trade.
-
At NashGems, we specialize in certified natural sapphires from ethical sources, ensuring each gemstone’s authenticity, traceability, and unmatched beauty.
ARE YOUR BLUE SAPPHIRES TREATED?
-
We provide full disclosure on any treatments. Many of our sapphires are heat-treated, a standard industry practice to enhance color and clarity, ensuring they look their best while maintaining durability.
WHAT MAKES BLUE SAPPHIRES VALUABLE?
-
Value is determined by color intensity, clarity, cut quality, carat weight, and origin. Kashmir and Burmese sapphires are particularly prized for their exceptional quality.
HOW DO I CARE FOR MY BLUE SAPPHIRE?
-
Clean with warm soapy water and a soft brush. Avoid harsh chemicals and store separately to prevent scratching other jewelry. Regular gentle care will preserve the sapphire’s brilliance for years.
DO YOU PROVIDE CERTIFICATES?
-
Yes! We can provide gemological certificates from reputable labs upon request, ensuring authenticity and giving you confidence in your purchase.