Natural Ceylon Blue Sapphire 4.37 Ct Long Cushion | Certified Gemstone Sri Lanka | CB 0402

Investment-Grade Gemstone | Sri Lanka Origin | Ref: CB-0402

Discover the captivating beauty of this Natural Blue Sapphire Gemstone, weighing an impressive 4.30 carats. Carefully selected for its rich blue hue and excellent brilliance, this oval-cut sapphire is a stunning centrepiece for fine jewellery creations.

Blue sapphires are among the most sought-after gemstones, admired for their durability, vibrant color, and timeless appeal. With its elegant oval shape and expertly faceted cut, this gemstone reflects light beautifully, delivering exceptional sparkle and depth.

Whether set in a ring, pendant, or custom-designed jewellery piece, this sapphire offers both luxury and lasting value.

Full Product Description

• Origin: Sri Lanka (Ceylon)
• Treatment: Unheated
• Color Grade: Cornflower Blue (Medium)
• Clarity: Slightly included VS 1 & 2  (natural characteristics)
• Cut Quality: Good
• Weight: 4.37 Carats
• Size: 10.54×8.79×5.05 mm
• Shape: Long Cushion
• Cut: Faceted
• Clarity: Very Very Slightly included | VVS 1 & 2  | Natural Characteristics
• Transparency : Yes
• Cut Style: Mixed Brilliant
• Certificate Number:
• Certification : GIA (USA) – Alumni Member
• Certification: NAJ (UK) – The National Association of Jewellers
• Brand: CeylonBlue

Discover the captivating beauty of this Natural Blue Sapphire Gemstone, weighing an impressive 4.30 carats. Carefully selected for its rich blue hue and excellent brilliance, this oval-cut sapphire is a stunning centrepiece for fine jewellery creations.

Blue sapphires are among the most sought-after gemstones, admired for their durability, vibrant color, and timeless appeal. With its elegant oval shape and expertly faceted cut, this gemstone reflects light beautifully, delivering exceptional sparkle and depth.

Whether set in a ring, pendant, or custom-designed jewellery piece, this sapphire offers both luxury and lasting value.

Is this sapphire natural?

Yes, this is a 100% natural blue sapphire, formed in the earth over millions of years. Making it a genuine and valuable gemstone.

What is the origin of this sapphire?

This gemstone originates from Sri Lanka (Ceylon), one of the world’s most famous sources for high-quality blue sapphires, especially from regions like Ratnapura. Ceylon sapphires are known for their bright, vivid blue color and excellent clarity.

Is it heated or untreated?

This sapphire is Untreated.

• Unheated sapphires are rarer and more valuable as they are completely natural.
• Heated sapphires undergo a traditional heat treatment to enhance color and clarity, which is widely accepted in the gemstone industry.

Is this suitable for an engagement ring?

Yes, blue sapphires are an excellent choice for engagement rings due to their:

• Exceptional durability (second only to diamonds)
• Timeless elegance and royal appeal
• Daily-wear strength and scratch resistance

This stone’s shape and size make it ideal for a standout, luxury ring design.

Does it come with certification?

Yes, this sapphire can be provided with a gemstone certification upon request. Certification verifies:

• Authenticity (natural sapphire)
• Treatment status (heated or unheated)
• Origin (if applicable)

We recommend certification for high-value purchases and international buyers.

Why Choose This Sapphire?

•  Ideal for statement jewellery
•  Classic oval cut enhances brilliance and perceived size
• Durable gemstone (9 on Mohs scale) – perfect for daily wear
• Suitable for rings, pendants, or investment pieces
• Timeless luxury with strong resale and heirloom value

Jewellery Use Ideas

• Engagement Rings 💍
• Statement Cocktail Rings
• Pendants & Necklaces
• Heirloom Jewellery Pieces

Large oval sapphires like this are commonly used as center stones due to their balanced proportions and light performance.

Care Instructions

To maintain your sapphire’s brilliance:

• Clean with mild soap and warm water
• Avoid harsh chemicals
• Store separately to prevent scratches
• Professional cleaning recommended periodically

Shipping & Packaging

• Secure packaging
• Worldwide shipping available
• Certification & gift packaging

Important Notes

• Each gemstone is natural and unique; slight variations in colour and inclusions are expected