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0.45ct Round Brilliant Diamond (F/VS2) in GWLAB Sealed Blister Pack

A 0.45 carat round brilliant diamond sealed in a GWLAB grading blister pack showing F color and VS2 clarity. - view 1
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Estimated value

$150 - $750

Rarity

Common(2/10)

Category

Gemstones

Brand

GWLAB

Era

2024

Origin

🌍 International

Authenticity

High(80%)
4

0.45CT ROUND BRILLIANT DIAMOND (F/VS2) IN GWLAB SEALED BLISTER PACK: ORIGINS & SIGNIFICANCE

Presented is a colorless, transparent, faceted gemstone, sealed within a tamper-evident blister pack issued by GWLAB (Gemewizard Laboratory). The accompanying internal grading label indicates a weight of 0.45 carats, fashioned in a standard round brilliant cut measuring 4.69 x 4.62 x 3.08 mm. The laboratory has assigned a color grade of 'F' (colorless) and a clarity grade of 'VS2' (Very Slightly Included). While the packaging prevents direct stereomicroscopic examination or refractive index testing, the dispersion and facet arrangement are consistent with diamond. It is crucial to note that the visible label does not explicitly state whether the stone is of natural earth-mined origin or synthetic (lab-grown) origin, though standard diamond grading nomenclature is utilized.

STONES ACROSS CIVILIZATIONS

Where This Object Echoes

Western Hemispheric TradeLate 20th Century - Present

The standardization of gemological commodities into sealed, graded parcels reflects the modern financialization of natural resources.

Ritual & Ceremonial Use

  • Engagement and commercial bridal acquisition, where standardized grading metrics (the 4Cs) act as a proxy for trust between unfamiliar parties.

Meaning Through Time

21st Century

Diamonds shifted from uniquely appraised individual heirlooms to universally traded, hyper-standardized commodities defined strictly by numerical metrics on a laboratory card.

GEOLOGICAL JOURNEY

The practice of sealing gemstones in tamper-proof assay blisters originated to provide supply chain security and consumer confidence in secondary and retail markets. While premier laboratories like the GIA largely shifted away from sealing stones to encourage direct examination by buyers and ...
The practice of sealing gemstones in tamper-proof assay blisters originated to provide supply chain security and consumer confidence in secondary and retail markets. While premier laboratories like the GIA largely shifted away from sealing stones to encourage direct examination by buyers and appraisers, regional and specialized labs like GWLAB continue the practice. This packaging serves primarily as a verifiable link between the physical stone and its grading report, heavily utilized in e-commerce and international wholesale parcel trading to prevent stone-swapping during transit.

CRYSTAL CURIOSITIES

1

A round brilliant cut typically features 57 or 58 facets, mathematically calculated in 1919 by Marcel Tolkowsky to maximize the return of white light (brilliance) and the refraction of spectral colors (fire).

2

'F' color is part of the premium 'Colorless' tier (D-E-F) in standard gemological grading, meaning to the naked eye, and even under magnification, the stone holds no discernible yellow or brown body color.

HOW SCARCE IS IT?

Common20-40%
CommonLegendary

Older mass-produced items still widely available. Easy to find on eBay, antique malls, and estate sales in large quantities.

Typical Characteristics

  • Mass produced historically
  • High survival rate
  • Readily available everywhere

Confidence Factors

  • The blister pack appears factory-sealed with no obvious signs of tampering or thermal welding anomalies.
  • The primary risk lies not in the stone being a generic imitation, but rather the ambiguity of whether it is an earth-mined or CVD/HPHT lab-grown diamond, as the visible label omits this distinction.
  • Secondary market grading laboratories like GWLAB historically have looser color/clarity grading standards compared to tier-one labs like GIA.
How does authenticity detection work?

GEMOLOGIST'S TAKE

Gemologist & Mineral Specialist

Gemologist

The packaging and laboratory labeling are clear and internally consistent regarding the physical metrics, but absolute certainty in market value requires database verification to differentiate between natural and lab-grown status.

KEY EVIDENCE

  • 1Sealed polymer assay blister with 'SEALED BY GWLAB' edge-printing.
  • 2Internal laboratory ticket denoting Cert #: 245509331032, dated May 28, 2024.
  • 3Declared physical dimensions (4.69 x 4.62 x 3.08 mm) tightly correlate mathematically to a 0.45ct weight for a diamond with a specific gravity of 3.52.
  • 4Visible faceting reflects a standard 57-facet round brilliant cut configuration.

UNCERTAINTIES

  • The visible label states 4Cs data but completely omits 'Natural' or 'Lab-Grown/Synthetic', a crucial valuation factor in today's market.
  • GWLAB (Gemewizard) is considered a commercial-tier laboratory; trade partners often apply a fractional discount to color/clarity when comparing to GIA grading standards.

WHAT WOULD IMPROVE CERTAINTY

  • Input Cert #245509331032 into the GWLAB online verification portal to confirm if the report specifies natural or laboratory-grown origin.
  • If unsealed in the future, examine under long-wave and short-wave UV light; differing fluorescence patterns can sometimes hint at natural vs. CVD lab-grown origins.

CONDITION & GRADE

Mint (Sealed)

Grading breakdown

The stone is uncirculated since laboratory sealing; the gemological condition is preserved precisely as graded on May 28, 2024.

Condition

The gemstone appears pristine and untouched within its sealed laboratory environment. The GWLAB tamper-evident casing is fully intact, though its exterior displays minor handling wear, which is expected and does not impact the specimen inside.

Surface

The pavilion and crown facets visible through the polymer blister show sharp, well-defined meeting points indicative of a high-refractive index material. The sealing capsule itself shows minor superficial scuffing on the reverse, though the primary viewing window remains highly transparent.

Weight & feel

The internal label states an exact weight of 0.45 carats, a 'light half-carat' in trade terminology, housed within a lightweight, sonically welded acrylic and polymer assay card.

GEMSTONE VALUATION

$150 - $750

Updated: Apr 11, 2026

Who buys this

E-commerce jewelry consumers, budget-conscious bridal buyers, and independent jewelers sourcing commercial-sized center stones for custom settings.

What increases value

  • The 'F' color grade placing it in the visually highly desirable Colorless tier.
  • The exact 0.45ct weight, which provides nearly the visual spread of a half-carat without the premium pricing associated with exactly hitting the 0.50ct mark.
  • The security and psychological comfort of a sealed laboratory blister.

What lowers value

  • The severe uncertainty regarding natural vs. lab-grown origin; if proven lab-grown, the baseline market value drops significantly.
  • Market perception of GWLAB compared to premium tier-one labs like GIA or AGS.

What makes top-tier examples

  • Verification of 'Natural Earth-Mined' status via the lab's digital database.
  • An 'Excellent' or 'Ideal' cut grade (not explicitly stated on the blister) which ensures maximum brilliance and fire.

Grade & condition

The primary driver is whether the F/VS2 grading holds up to stricter laboratory standards, alongside the cut proportions, polish, and symmetry which are unfortunately abbreviated on this specific label style.

Rarity & demand

CommonHigh demandSells quickly
Browse similar gemstones objects

For informational purposes only, not a formal appraisal.

CONTEXT ANALYSIS

How your provided context compares with Curiosa.com scanner findings.

What Aligned

  • User's belief in 'Mint' condition is validated by the fully intact, factory-sealed GWLAB tamper-evident blister pack.
  • User's belief in 'Authentic' aligns with the presence of a verifiable and sequentially numbered laboratory certificate generated in May 2024.

What Conflicted

  • While authentic to the laboratory, visual evidence alone cannot confirm if the 'Original/Authentic' claim pertains to a natural earth-mined diamond or an authentic synthetic lab-grown diamond, as the visible label lacks geological origin data.

FROM THE CABINET OF

The Collector

The Collector

Relic Hunter107 items

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