4.00 ct GIA certified AAA grade blue sapphire gemstone with deep blue color and excellent clarity
4.00 ct Oval Ceylon Blue Sapphire with GIA lab report
4.00 carat GIA certified blue sapphire gemstone with deep blue color and excellent clarity
4.00 ct GIA certified blue sapphire gemstone with deep blue hue and excellent clarity
4.00 ct GIA certified deep blue sapphire gemstone with excellent clarity and precision cut
4.00 ct Oval Ceylon Blue Sapphire with GIA lab report
4.00 ct GIA certified AAA grade blue sapphire gemstone with deep blue hue and excellent clarity

CG8363

4.00 ct Oval Ceylon Blue Sapphire with GIA lab report

$13,200.00 USD
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Per Carat: $3,300.00

Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.

Stone Style Faceted
Stone TypeSapphire
Weight (Ct.)4.0
EnhancementHeat Treated
OriginSri Lanka (Ceylon)
ClarityVery Very Slightly Included
ColorBlue
Color Description Royal Blue
Color IntensityIntense
Stone ShapeOval
Dimensions (mm)9.52 x 8.45 x 6.42
CutStep Cut
Lab ReportGIA

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Be the envy of your peers , Make an Exquisite ring out of this one of a kind Blue Sapphire.

This exceptional 4.00 carat blue sapphire delivers remarkable clarity and luminosity, backed by GIA certification. Dimensioned at 9.52 x 8.45 x 6.42 mm, this substantial gemstone commands attention in any fine jewelry design. The deep, saturated blue coloration combined with its impressive carat weight positions it as an ideal selection for discerning collectors and connoisseurs who prioritize superior craftsmanship and timeless sophistication.

Why Choose This 4.00 Ct Blue Sapphire?

This 4.00 Ct Blue Sapphire is more than just a gemstone—it’s a statement of elegance, rarity, and authenticity. Whether you're designing a custom engagement ring or a meaningful pendant, this gemstone offers unmatched brilliance and natural charm.

Key Benefits

  • Authentic 
    Standard Heat treatment only  
  • Timeless Investment
    Blue sapphires retain value and are highly sought after.
  • Versatile Jewelry Use
    Ideal for rings, necklaces, earrings, or bespoke creations.
  • Elegant Bluish Hue
    Adds warmth and sophistication to any jewelry design.
  • Symbolic Meaning
    wisdom, loyalty, nobility, and divine favor. often referred to as the "stone of wisdom". Historically linked to royalty and the heavens, it represents mental clarity, truth, and protection against negative energies, making it a popular choice for engagement rings to signify faithful love.

Features

  • Carat Weight: 4.00 Carats
  • Gem Type:  Sapphire
  • Treatment: Heat treated
  • Color: Blue
  • Clarity: Excellent transparency and brilliance
  • Cut: Expertly shaped for maximum sparkle

Care 

  • Clean gemstones regularly to maintain brilliance
  • Store each gemstone separately to avoid scratches
  • Remove jewelry before heavy activities (sports, gardening, cleaning)
  • Avoid dropping or knocking stones against hard surfaces
  • Use lukewarm water + mild soap for most gemstones
  • Gently clean with a soft brush (like a toothbrush)
  • Rinse thoroughly and dry with a soft cloth
  • Avoid ultrasonic or steam cleaners for delicate stones

Whats included with the gemstone

  • Lab report from an Independent Lab
  • Gemstone packed in a gem sleeve.

This 4.00 Ct  blue Sapphire has been carefully selected to meet high gemological standards, ensuring quality, durability, and beauty.

Why Customers Love This Gemstone

  • Rare Natural Quality: Well cut Blue sapphire stones are increasingly difficult to find.
  • Brilliant Sparkle: Precision cutting enhances light reflection.
  • Perfect for Custom Jewelry: A centerpiece that elevates any design.
  • Trusted Selection: Each stone is chosen for authenticity and excellence.

Owning this 4.00 Ct Blue Sapphire means investing in a gemstone that blends natural beauty with long-term value.

Perfect uses for this 4.00 Ct Blue Sapphire

  • Engagement rings
  • Anniversary gifts
  • Custom luxury jewelry
  • Collectors of natural gemstones
  • Astrological or spiritual jewelry
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Domestic Shipping

We have FREE shipping within the United States of America.

Orders are processed and shipped on the next business day. Orders placed on weekends or holidays will ship on the following business day.

Estimated delivery time is 2 - 3 days

International Shipping
All international Shipments are through FedEx or UPS, and we charge US $60 per shipment for orders under US $ 499 and Orders Over US $ 500 get FREE SHIPPING. Orders are processed and shipped on the next business day. Orders placed on weekends or holidays will ship on the following business day.

International customers may be subject to customs duties, taxes, or import fees levied by their local authorities upon arrival of the shipment. These charges are not controlled by Crescent Gems and are the responsibility of the recipient. Original shipping fees and customs duties are non-refundable.

Estimated delivery time is 4 - 10 days.

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Frequently Asked Questions

What makes this 4.00 ct Blue Sapphire a valuable addition to my jewelry collection?
This 4.00 ct Blue Sapphire is prized for its exceptional clarity, luminosity, and deep blue color, making it a luxurious and timeless choice for fine jewelry. Its GIA certification assures its quality and authenticity.
How should I care for my 4.00 ct Blue Sapphire to maintain its beauty?
To keep your 4.00 ct Blue Sapphire looking stunning, avoid exposure to harsh chemicals and abrasives. Clean it gently with warm soapy water and a soft brush, and store it separately to prevent scratches.
Can I use this 4.00 ct Blue Sapphire for any specific types of jewelry designs?
Absolutely! The substantial size and striking color of this 4.00 ct Blue Sapphire make it perfect for creating statement rings, pendants, or centerpieces in fine jewelry pieces.
What does GIA certification mean for this 4.00 ct Blue Sapphire?
GIA certification confirms that the sapphire has been professionally analyzed for quality, authenticity, and origin, providing reassurance of its superior craftsmanship and genuine nature.
How does the size of 9.52 x 8.45 x 6.42 mm affect the appearance of the sapphire?
The dimensions of 9.52 x 8.45 x 6.42 mm give the sapphire a substantial and eye-catching presence, ideal for elaborate jewelry settings that showcase its size and deep, saturated blue hue.