Skip to main content
Curiosa
Sign InTry a scan

Natural Burma Pink Spinel - 2.33ct Rectangular Cushion

A pink rectangular cushion-cut spinel gemstone next to its ALGT Antwerp Laboratory identification report. - view 1
1/3

Estimated value

$450 - $900

Rarity

Scarce(6/10)

Category

Gemstones

Era

2024 (Date of Certification)

Origin

🇲🇲 Myanmar

Authenticity

Very High(90%)
15

NATURAL BURMA PINK SPINEL - 2.33CT RECTANGULAR CUSHION: IDENTIFICATION

A transparent, light pink spinel weighing 2.33 carats, fashioned into a rectangular cushion mixed cut measuring 8.61 x 6.87 x 4.29 mm. The specimen exhibits the characteristic vitreous luster of the spinel species and shows a moderately saturated pink hue with visible extinction patterns consistent with deep pavilion facets.

Compare with other gemstones in the archive: Natural Diamond - 0.45ct Round Brilliant (GWLAB Certified), 0.50 Carat Round Brilliant Diamond (AIG D2410518829), Natural Tanzanite - 4.51ct Pear Cut (IGE Certified).

GEOLOGICAL ORIGIN

Spinel has historically been recovered from the Mogok Stone Tract in Upper Myanmar (Burma) for over a millennia, where it often occurs alongside corundum. For centuries, red spinels were frequently misidentified as rubies, most notably the 'Black Prince's Ruby' in the British Imperial State Crown. ...
Spinel has historically been recovered from the Mogok Stone Tract in Upper Myanmar (Burma) for over a millennia, where it often occurs alongside corundum. For centuries, red spinels were frequently misidentified as rubies, most notably the 'Black Prince's Ruby' in the British Imperial State Crown. This specific stone is accompanied by ALGT Antwerp report No. 08788992 dated 18 April 2024.

SCARCITY

Scarce80-90%
CommonLegendary

Genuinely harder to find. Perhaps only dozens come to market annually. Collectors actively watch for these pieces.

Rarity 6/10. Curiosa currently catalogues 2 gemstones items at rarity 6 or higher.

Typical Characteristics

  • Dozens per year at market
  • Documented provenance valued
  • Active collector pursuit

Confidence Factors

  • Matching report data to physical stone appearance
  • Verifiable QR code on the Antwerp Laboratory for Gemstone Testing document
  • Physical dimensions and carat weight consistency
How does authenticity detection work?

GEMOLOGIST'S TAKE

Gemologist & Mineral Specialist

Gemologist

Confidence is high due to the presence of a reputable laboratory certificate (ALGT) that matches the visual characteristics of the stone provided.

KEY EVIDENCE

  • 1ALGT Report #08788992 confirms 2.33ct weight and dimensions.
  • 2Pink hue and saturation are typical for lower-iron Myanmar material.
  • 3Mixed cut style is consistent with modern Mogok cutting practices to retain weight.
  • 4Transparency and luster align with the spinel species characteristics.

UNCERTAINTIES

  • •Light colored spinels sometimes show windowing (loss of color in the center), though not egregious here.

WHAT WOULD IMPROVE CERTAINTY

  • →Verify the report number on the ALGT Antwerp official database
  • →Examine under 10x magnification for silk or octahedral inclusions to confirm Burma origin
  • →Check for UV fluorescence; Myanmar spinels often show strong red under long-wave UV

CONDITION & GRADE

Condition

The stone appears in eye-clean condition with no visible chips or abrasions. The lab report indicates 'no indications of treatment', which is standard for most fine spinels.

Weight & feel

Expressed at 2.33 carats, providing a substantial face-up appearance for its weight due to the 8.6mm length.

GEMSTONE VALUATION

$450 - $900

Updated: May 11, 2026

Who buys this

Independent jewelers and collectors of untreated colored gemstones seeking 'old mine' origin material.

What increases value

  • •The 'No Heat' designation noted in comments
  • •Burma (Myanmar) origin attribution
  • •Clean clarity over 2 carats

What lowers value

  • •Lighter saturation (light pink vs. hot pink/red)
  • •Market volatility for non-major laboratory reports

What makes top-tier examples

  • •Vibrant 'pigeon blood' red or 'Jedi' neon pink saturation
  • •GIA or Gübelin origin certification

Grade & condition

Color saturation, clarity, and precision of the cut symmetry.

Rarity & demand

ScarceModerate demandModerate liquidity
Browse similar gemstones objects

For informational purposes only, not a formal appraisal.

FROM THE CABINET OF

The Collector

The Collector
Relic Hunter•117 items

COMMENTS

No comments yet. Be the first to share your thoughts!

Sign in to leave a comment

ABOUT GEMSTONES

Precious stones, semi-precious gems, minerals, crystals, and geological specimens.

Gemstones value and rarity guide

SHARE THIS CURIOSITY

Have your own curiosities to discover?

Scan Your Curiosity