Natural

Natural · Round Brilliant

Very Good Cut

Natural - Round Brilliant

Carat

Approx. 1.00 - 1.50 ct

Color

Fancy Deep Blue

Clarity

VS1

Shape

Round Brilliant

Overall Assessment

An exceptionally rare natural blue diamond exhibiting vivid coloration and strong fluorescence, making it a highly desirable collector's piece

Cut Quality

Very Good

Brilliance

High brightness with deep blue body color masking some white reflection

Fire

Moderate dispersion visible despite dark coloration

Scintillation

Good play of light and dark areas under direct illumination

Proportions

Standard modern round brilliant proportions, estimated table 58%, depth 61%

Symmetry

Good

Polish

Good

Fluorescence

Very Strong Blue

Inclusions

Minor pinpoint inclusions and faint internal graining

Blemishes

Faint natural on the girdle

Origin

Natural geological origin, potentially South Africa or Australia

Treatment Detection

No obvious signs of artificial irradiation or fracture filling; natural origin suspected due to strong blue fluorescence typical of Type IIb diamonds

Estimated Value

Varies significantly due to color rarity, typically valued from $15,000 to $50,000+ per carat

Certification Estimate

GIA Fancy Colored Diamond Report

Investment Potential

Extremely high appreciation potential due to the extreme rarity of natural colored diamonds in the marketplace

Similar Diamonds

Natural blue diamonds of comparable saturation sold at major auction houses like Christie's and Sotheby's

Setting Suggestions

Platinum or 18k white gold prong setting to enhance the rich blue hue, possibly with colorless diamond side stones

Care & Maintenance

Clean with warm soapy water and a soft brush; avoid harsh ultrasonic cleaners if inclusions are present near the surface

Interesting Facts

Natural blue diamonds owe their color to the presence of trace amounts of boron, and many exhibit strong blue fluorescence under UV light

Identified on 9/21/2026