天然ブルーサファイア 1.31カラット クッションカット ルースジェムストーン | スカイブルー ヒートトリートメント済み 9月の誕生石

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.

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.

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.

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.

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.

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.

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.

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.

Value is determined by color intensity, clarity, cut quality, carat weight, and origin. Kashmir and Burmese sapphires are particularly prized for their exceptional quality.

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.

Yes! We can provide gemological certificates from reputable labs upon request, ensuring authenticity and giving you confidence in your purchase.