No reserve price - 1 pcs Red Ruby - 0.70 ct - Guild Gem Laboratory - Strong Fluorescence
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No reserve price
Expert
Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 280 - € 350
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Natural ruby, 0.70 carats, one stone, octagonal shape with a step cut, vivid purplish‑red colour, strong fluorescence, no indication of thermal enhancement, Guild Report No. 3136218295.
AI-assisted summary
Description from the seller
Natural Ruby – 0.70 ct – Unheated – Guild Certified
A striking natural ruby weighing 0.70 carats, featuring an elegant octagonal shape and a refined step cut. This gemstone displays a rich Vivid Purplish Red color, complemented by strong fluorescence, creating exceptional brightness and visual appeal.
The elongated octagonal shape and step-cut faceting highlight the ruby’s color depth and clarity, giving it a sophisticated appearance reminiscent of classic emerald-cut gemstones. Its attractive proportions make it particularly suitable for bespoke rings, pendants, or collector-quality jewelry pieces.
Of particular significance, the Guild report confirms no indication of thermal enhancement, making this an unheated natural ruby—an increasingly rare and sought-after category among gemstone collectors and connoisseurs.
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Additional Information
* Species: Natural Corundum
* Variety: Natural Ruby
* Weight: 0.70 ct
* Dimensions: 7.58 × 4.18 × 2.07 mm
* Shape: Octagonal
* Cut: Step Cut
* Clarity: Transparent with natural inclusions typical of natural ruby
* Colour: Vivid Purplish Red
* Lustre: Vitreous
* Fluorescence: Strong fluorescence
* Treatment: No indication of thermal enhancement (unheated), as stated on Guild report
* Condition: Excellent condition with no visible chips, cracks, or abrasions; suitable for immediate jewelry setting
* Certificate: Guild Report No. 3136218295
⸻
Shipping
* Shipped from Thailand via DHL, FedEx, or equivalent international courier
* Secure and trackable packaging
* Item will be shipped in accordance with international shipping regulations
* Import duties, VAT, customs fees, and local taxes, if applicable, are the sole responsibility of the buyer
* Any customs-related delays are beyond the seller’s control
A beautiful unheated ruby with vivid purplish-red color, strong fluorescence, and an elegant octagonal step cut—an excellent choice for collectors and fine jewelry enthusiasts.
Seller's Story
Verdant Gems is a globally connected gemstone dealer, sourcing natural rubies and fine coloured stones directly from origin. Operating out of Bangkok, we bring unique, high-quality gems to collectors and jewellery lovers worldwide.
Natural Ruby – 0.70 ct – Unheated – Guild Certified
A striking natural ruby weighing 0.70 carats, featuring an elegant octagonal shape and a refined step cut. This gemstone displays a rich Vivid Purplish Red color, complemented by strong fluorescence, creating exceptional brightness and visual appeal.
The elongated octagonal shape and step-cut faceting highlight the ruby’s color depth and clarity, giving it a sophisticated appearance reminiscent of classic emerald-cut gemstones. Its attractive proportions make it particularly suitable for bespoke rings, pendants, or collector-quality jewelry pieces.
Of particular significance, the Guild report confirms no indication of thermal enhancement, making this an unheated natural ruby—an increasingly rare and sought-after category among gemstone collectors and connoisseurs.
⸻
Additional Information
* Species: Natural Corundum
* Variety: Natural Ruby
* Weight: 0.70 ct
* Dimensions: 7.58 × 4.18 × 2.07 mm
* Shape: Octagonal
* Cut: Step Cut
* Clarity: Transparent with natural inclusions typical of natural ruby
* Colour: Vivid Purplish Red
* Lustre: Vitreous
* Fluorescence: Strong fluorescence
* Treatment: No indication of thermal enhancement (unheated), as stated on Guild report
* Condition: Excellent condition with no visible chips, cracks, or abrasions; suitable for immediate jewelry setting
* Certificate: Guild Report No. 3136218295
⸻
Shipping
* Shipped from Thailand via DHL, FedEx, or equivalent international courier
* Secure and trackable packaging
* Item will be shipped in accordance with international shipping regulations
* Import duties, VAT, customs fees, and local taxes, if applicable, are the sole responsibility of the buyer
* Any customs-related delays are beyond the seller’s control
A beautiful unheated ruby with vivid purplish-red color, strong fluorescence, and an elegant octagonal step cut—an excellent choice for collectors and fine jewelry enthusiasts.
Seller's Story
Verdant Gems is a globally connected gemstone dealer, sourcing natural rubies and fine coloured stones directly from origin. Operating out of Bangkok, we bring unique, high-quality gems to collectors and jewellery lovers worldwide.
Details
Number of stones
1
Lab report number
3136218295
Gemstone type
Ruby
Total carat weight
0.70
Gemstone colour
Red
Optical effect
Fluorescence
Transparency
Transparent
Clarity grade
Eye clean
Treatment
No evidence of treatment
Laboratory report
Guild Gem Laboratory
Sealed by laboratory
No
Title additional information
Strong Fluorescence
Shape
Octagon
Cutting style
Step cut
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Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
