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Curiosa

0.50 Carat Round Brilliant Diamond (AIG D2410518829)

0.50 carat round brilliant diamond sealed in an AIG Antwerp laboratory certificate card. - view 1
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Estimated value

$700 - $1,100

Rarity

Ordinary(3/10)

Category

Gemstones

Brand

Antwerp International Gemological Laboratories

Era

2024

Origin

Belgium

Authenticity

Very High(85%)
183

0.50 CARAT ROUND BRILLIANT DIAMOND (AIG D2410518829): IDENTIFICATION

A sealed 0.50-carat round brilliant cut diamond housed in a tamper-evident PVC blister pack. The accompanying AIG (Antwerp International Gemological Laboratories) report card D2410518829, dated June 04, 2024, identifies the specimen with an I color grade and VS2 clarity. The stone displays standard 57 or 58 facet geometry consistent with modern brilliant-cut proportions, exhibiting a visible brightness and high-contrast light return typical of this geometry.

CROSS-CULTURAL PARALLELS

Where This Object Echoes

Western Wedding Traditions1947 to present

The round brilliant 0.50 ct stone is the most common archetype for engagement rings since the mid-20th century.

Ritual & Ceremonial Use

  • •Engagement proposal ceremonies where diamonds symbolize enduring commitment.
  • •Investment hedging where high-quality portable gemstones serve as a store of value.

Meaning Through Time

21st Century

The diamond has transitioned from a symbol of status to a standardized commodity with transparent global pricing scales.

GEOLOGICAL ORIGIN

The modern round brilliant cut, standardized following Marcel Tolkowsky's 1919 mathematical model, remains the benchmark for maximizing fire and brilliance in diamonds. Historically, Antwerp has functioned as the primary global hub for diamond trading and grading since the 15th century, with ...
The modern round brilliant cut, standardized following Marcel Tolkowsky's 1919 mathematical model, remains the benchmark for maximizing fire and brilliance in diamonds. Historically, Antwerp has functioned as the primary global hub for diamond trading and grading since the 15th century, with contemporary laboratories like AIG providing commercially oriented certification for the European and Israeli markets.

SCARCITY

Ordinary40-55%
CommonLegendary

Standard antiques commonly found at estate sales and flea markets. Plentiful supply meets modest demand.

Typical Characteristics

  • Moderate production runs
  • Common at estate sales
  • Entry-level collectibles

Confidence Factors

  • Presence of a verifiable AIG laboratory report number
  • Blister pack remains factory-sealed and untampered
  • Optical properties are consistent with documented diamond specifications
How does authenticity detection work?

GEMOLOGIST'S TAKE

Gemologist & Mineral Specialist

Gemologist

Confidence is high due to the clear presence of a professional laboratory report and sealed packaging which matches the optical characteristics of the stone.

KEY EVIDENCE

  • 1Verifiable AIG report number D2410518829
  • 2Visible 0.50 ct round brilliant cut characteristics
  • 3Intact, tamper-evident laboratory sealing
  • 4Clarity and color appearance align with I/VS2 grading standards

UNCERTAINTIES

  • •AIG is often considered to have softer grading standards compared to GIA or AGS
  • •Verification of the report on the official AIG website is required to confirm it is not a clone

WHAT WOULD IMPROVE CERTAINTY

  • →Verify report on AIG Worldwide's digital portal
  • →Examine under 10x-40x magnification to confirm VS2 inclusion patterns
  • →Screen for laboratory-grown (CVD/HPHT) indicators if not specified as 'Natural' on the full report

CONDITION & GRADE

Grading breakdown

The stone is pre-graded by AIG as I color and VS2 clarity; the visual evidence confirms a high-quality cut with balanced symmetry.

Condition

The diamond is currently in a sealed, mint-state condition within its original AIG laboratory blister pack, protecting it from surface abrasions or oil accumulation.

Weight & feel

0.50 carats (approximately 0.1 grams), with a likely diameter of 5.0 to 5.2 mm based on standard cutting proportions.

GEMSTONE VALUATION

$700 - $1,100

Updated: May 11, 2026

Similar 0.50ct I/VS2 diamonds with AIG or similar secondary lab reports typically sell for $800-$1,200 on platforms like Blue Nile or RapNet.

Who buys this

Private consumers for engagement jewelry and small-scale jewelry manufacturers seeking calibrated center stones.

What increases value

  • •Sealed laboratory certification providing buyer confidence
  • •Half-carat weight threshold, which is a major psychological value point in retail
  • •Round brilliant cut, which holds the highest resale value of any shape

What lowers value

  • •Market preference for GIA reports over AIG, which can result in a 20-30% discount
  • •I-color may show faint yellow tints when compared to higher D-F grades

What makes top-tier examples

  • •Ideal or Excellent cut grade ratings
  • •Lack of fluorescence
  • •GIA certification

Grade & condition

Color (absence of yellow), Clarity (lack of eye-visible inclusions), and Cut (precision of light return).

Rarity & demand

OrdinaryHigh demandSells quickly
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For informational purposes only, not a formal appraisal.

FROM THE CABINET OF

TH

The Collector

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