Bangkok Blue Sapphire (Neelam) 6.5 Carat — Genuine Statement Size with Oval Mix Cut
This Bangkok Blue Sapphire (Neelam) 6.5 Carat (7.14 Ratti) is a natural, lab-certified sapphire featuring an elegant oval mix cut and a rich blue colour. With a strong face-up spread of 12.5 × 9.4 mm, this is a statement-size Neelam that offers excellent presence when set in a ring or pendant. Its depth of 4.7 mm supports a balanced profile suitable for jewellery mounting.
Bangkok is internationally recognised as a major hub for sapphire trading and precision cutting. This gemstone is heated and treated, a permanent and widely accepted industry-standard enhancement used to improve colour and clarity while preserving the stone’s natural corundum identity.
Gemstone Specifications
| Gemstone Type | Natural Blue Sapphire (Neelam / नीलम) |
| Weight | 6.5 Carat (7.14 Ratti) |
| Dimensions | 12.5 × 9.4 × 4.7 mm |
| Shape/Cut | Oval Mix Cut |
| Colour | Blue |
| Origin | Bangkok, Thailand (Traded & Processed) |
| Treatment | Heated & Treated (Industry Standard) |
| Hardness | 9 on Mohs Scale |
| Refractive Index | 1.76 – 1.77 |
| Chemical Composition | Al₂O₃ (Corundum) |
| Certification | Lab Certified (ISO 9001:2015 Certified Laboratory) |
| Conclusion | Natural Blue Sapphire |
Why This 6.5 Carat Neelam is a Premium Pick
Natural Blue Sapphires in the 6+ carat range are comparatively uncommon in the certified market. This exclusive size delivers outstanding finger coverage thanks to its oval shape and large 12.5 mm length, while the mix cut enhances brilliance and light return — a stunning option for buyers seeking a bold, premium gemstone.
Video Inspection
Watch the 360° video of this exact stone to assess colour, clarity, and cut performance before purchase. The video is recorded under neutral lighting for accurate representation.
Certification and Authenticity
Every gemstone from Ratna Gems includes:
- Lab Certificate from an ISO 9001:2015 Certified Gems Testing Laboratory
- Lifetime Authenticity Guarantee — we stand behind every stone we sell
- Certificate Verification — verify your report directly with the issuing laboratory
The certificate confirms this stone as an authentic natural Blue Sapphire with disclosed heat treatment.
Natural Characteristics
Minor natural inclusions or internal growth patterns may be present and are common in natural sapphires. These natural characteristics help confirm natural origin and distinguish genuine gemstones from synthetic alternatives.
Browse More Blue Sapphire Options
Explore our complete collection of certified Blue Sapphire (Neelam) stones:
View All Blue Sapphire (Neelam) Stones
New to buying Blue Sapphire? Read our comprehensive guide first:
Blue Sapphire (Neelam) Buying Guide
Our Commitment to You
| Certification | Lab report from ISO 9001:2015 Certified Laboratory + Lifetime Authenticity Guarantee |
| Returns | 7-day easy return from delivery. See our Return & Refund Policy |
| Shipping | Free insured shipping across India with tracking |
| Packaging | Secure, tamper-evident packaging |
| Payment | COD available | Secure online payment options |
| Support | WhatsApp assistance for any queries |
Frequently Asked Questions
- Makar Rashi (Capricorn / मकर राशि) natives
- Kumbh Rashi (Aquarius / कुंभ राशि) natives
- Those experiencing Shani Sade Sati period
- Shani Mahadasha or Shani Dhaiya phases
Ratna Gems provides certified gemstones only and does not offer astrological advice. We recommend consulting a qualified astrologer or Jyotish to determine personal suitability based on your individual birth chart (Kundli).
- Day: Saturday (Shanivar / शनिवार)
- Time: Morning during Shukla Paksha
- Finger: Middle finger of working hand
- Metal: Silver, White Gold, or Panchdhatu
- Weight Formula: Body weight (kg) ÷ 12 = Ratti
- Mantra (Optional): Om Sham Shanicharaya Namah (108 times)
These are traditional practices shared for informational purposes. Individual practices may vary based on regional customs and personal astrologer recommendations.
