1 pcs 蓝色 蓝宝石 - 3.90 ct - 亚洲宝石科学院（AIGS） - CORNFLOWER-CEYLON-ELITE

Natural Sapphire - Blue - 3.90 Ct - AIGS Certified - Serendib-Grand-Sovereign
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Sri Lanka (AIGS Opinion) | Oval / Faceted
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A *monumental 3.90-carat* AIGS *"Cornflower Blue"* certified Ceylon sapphire — carrying the *most celebrated color grade* in the entire sapphire world, born from *Ratnapura*, the legendary *"City of Gems"* producing corundum for over *3,000 years*. A near *4-carat* oval of pure "Serendib" heritage — the *"Blue Belle of Asia"* lineage at a private collector's price.

■ Certificate Details
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AIGS Gemstone Identification Report Number: GF26031181
Date: 01 April 2026
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Weight ........................... 3.90 cts
Shape ............................ Oval
Cut .................................. Faceted
Measurements ......... ≈ 9.91 x 8.54 x 4.71 mm
Color .............................. Blue
Identification ............. Natural Sapphire
Comment .................... Indication of heat treatment: TE
Origin ............................ Sri Lanka
(AIGS Opinion — physical and chemical characteristics consistent with sapphires from Sri Lanka's legendary Ratnapura gem belt, the world's oldest continuously producing corundum source)

This stone has been given the AIGS "Cornflower Blue" grade on the AIGS Sapphire Color Grading Scale.

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For a detailed Certificate Report please copy and paste this link in your browser:

https://www.aigsthailand.com/AIGS-Online-Report-Verification-EN

Report Number: GF26031181 · Carat Weight: 3.90 cts

Scan the QR code in the images to verify instantly.
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■ ORIGIN & GEOLOGICAL CONTEXT:

Sri Lanka's *Ratnapura "City of Gems"* — *"Serendib"* to ancient Arab traders — 540-million-year *Pre-Cambrian geology* producing the world's finest *"Cornflower Blue"* corundum for 3,000+ years.

■ MARKET INSIGHT:

*Cornflower Blue Ceylon sapphires* command *$2,320–$6,200+ per carat* — with near-4ct specimens entering a *significantly rarer exponential price tier* commanding sustained collector premiums.

■ JEWELRY DESIGN POTENTIAL:

*Near-10mm grand oval presence* — the definitive centerpiece for a *platinum halo engagement suite* or *bespoke royal-tier pendant* — exceptional visual impact at any scale.

■ METAPHYSICAL PROPERTIES:

*"Stone of Wisdom, Loyalty and Mental Clarity"* — throat and third-eye chakra mastery — *3,000 years* of royal patronage from ancient Persia to Princess Diana's iconic engagement ring.

■ WHY THIS CEYLON SAPPHIRE IS EXTRAORDINARY:

✓ *OFFICIAL AIGS "CORNFLOWER BLUE" GRADE* — The most celebrated and emotionally resonant color designation in sapphire grading — the *definitive benchmark* for European collector desire.
✓ *MONUMENTAL NEAR-4ct SERENDIB HERITAGE* — At this *exponential rarity threshold*, 3ct+ Cornflower Blue Ceylon sapphires command *disproportionate premiums* with each carat increment.
✓ *RATNAPURA "CITY OF GEMS" PROVENANCE* — The *world's oldest continuously producing sapphire source* — home of the *Blue Belle of Asia* ($44,000/ct Christie's Geneva 2014).
✓ *NATURAL "SILK" CHARACTER* — Natural internal characteristics serve as a *geological fingerprint* confirming 100% natural formation — the hallmark of authentic Ceylon material.
✓ *AIGS CERTIFIED AUTHORITY* — Verified by *Asia's foremost gemological laboratory* for Southeast Asian corundum — absolute precision for global buyer confidence and liquidity.

Comments:
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● *"Cornflower Blue" Royal Prestige*: The same iconic color grade as Princess Diana's legendary 12ct Ceylon sapphire — the *world's most famous colored gemstone* in active use.
● *Blue Belle Legacy*: The 392ct Cornflower Blue Ceylon "Blue Belle of Asia" achieved *$44,063 per carat* at Christie's Geneva 2014 — establishing Ceylon as the *ultimate corundum heritage*.
● *3ct+ Exponential Rarity*: Near-4ct Cornflower Blue Ceylon sapphires represent *less than 1% of all certified Ceylon production* — price-per-carat escalates dramatically at this threshold.
● *Standard TE Enhancement*: Industry-accepted heat treatment applied to *over 90% of commercial sapphires globally* — enhancing natural color while fully preserving the stone's organic integrity.

Clarification: AIGS "Cornflower Blue" grade and AIGS-Opinion Sri Lanka origin confirm the most celebrated and investment-stable color designation in the global sapphire market.
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Please read the below Information's and terms for your better understanding. Thank you.
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Photography & Image Accuracy:
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- While our HD photos provide detailed static views, we highly recommend watching the included videos for a true-to-life depiction of the gem's dynamic qualities, including color shifts, brilliance, refractive index, light play, and luster in motion.
- All items are photographed individually using professional DSLR/macro equipment in controlled lighting (LED, daylight-balanced ~5000K).
- Photos are not heavily edited; minor cropping may be applied to represent the gem accurately.
- Images may reveal inclusions or features in greater detail than the naked eye—please examine them carefully. Colors can vary slightly due to screen and lighting differences.

Shipping & Returns:
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- Packing & carriers: We pack to jewelry-grade standards with tamper-evident seals. High-value parcels ship via trusted couriers (FedEx/DHL) with tracking and signature required.

- Processing time: Orders ship within 1–3 business days after payment clears (unless noted otherwise). For expedited dispatch, message us before purchase.

Shipping options & transit:
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- Express Priority: 1–3 business days. (Additional shipping cost involved - Message us if needed)
- Standard Priority: 3–7 business days.
- Regional/economy options: Available on request.
- Ask for quotes on shipping-only vs. shipping + insurance. High-value items are insured by default; optional insurance for others upon request.

Customs & taxes:
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- Import duties, VAT, and clearance fees are the buyer's responsibility—we cannot predict or control these. In countries like France, Portugal, or the Canary Islands, a local customs broker may be needed; arrange in advance if applicable.

Insurance & claims:
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- High-value shipments are insured. If lost or damaged, notify us immediately, retain packaging, and we'll assist with claims. Refuse delivery if the parcel shows visible damage.

Combined shipping:
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- Free for multiple wins—pay the first lot and message us with lot numbers within 48 hours to consolidate and update your invoice.

Cancellations & returns:
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- Contact us first. Returns accepted with prior approval within 7 days of receipt; items must be unworn and in original packaging with certificates. Buyer pays return shipping unless Misdescribed.

Claims & resolution:
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- Reach out for any issues—we resolve disputes promptly and fairly.

Payment & verification:
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- We accept international payments via Payoneer. Items ship after verification; additional ID may be requested for high-value orders.

***INT-REF LOT NUMBER: UL-002-0001/(UMM-LHS-AAE-HUE-MAO)***