Bangkok Blue Sapphire (Neelam) 4.35 Carat — Stunning Blue with Oval Mix Cut
This Bangkok Blue Sapphire (Neelam) 4.35 Carat (4.78 Ratti) is a lab-certified natural sapphire featuring a balanced oval mix cut and an attractive blue colour. With a face-up size of 9.8 × 9.2 mm, it offers an excellent spread for rings and pendants, delivering a refined look with strong presence on hand.
Bangkok is globally recognised for sapphire trading and precision cutting. This gemstone is heated and treated, an accepted and permanent 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 | 4.35 Carat (4.78 Ratti) |
| Dimensions | 9.8 × 9.2 × 5 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 Choose a 4.35 Carat Neelam?
A 4+ carat natural Blue Sapphire offers a strong visual impact while remaining practical for everyday wear. The oval shape provides excellent finger coverage, and the mix cut enhances brilliance and light return — making this a genuine and elegant choice for jewellery as well as traditional preferences.
Video Inspection
Review the 360° video of this exact gemstone to assess colour, clarity, and cutting 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 lab report confirms this stone as an authentic natural Blue Sapphire with disclosed heat treatment.
Natural Characteristics
Natural inclusions or internal growth patterns may be present and are common in natural sapphires. These features help gemologists confirm natural origin and distinguish natural stones from synthetic or imitation material.
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.
