Blue Sapphire 1.31 ct | Cushion | Cornflower Blue | Sri Lanka

SKU: SBS019

Elegant Cornflower Blue Sapphire (1.31 ct) from Sri Lanka, cut in a classic cushion with a refined, lively blue. A timeless centerpiece stone—ideal for an engagement ring, halo setting, or an elegant pendant.

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$1,081.00

1 in stock

1 in stock

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Description

This 1.31 ct Cornflower Blue Sapphire from Sri Lanka combines a classic origin with one of the most beloved shapes in fine jewelry: the cushion cut. Sri Lankan sapphires are known for their bright, attractive blues, and this stone offers a beautiful cornflower-style look with excellent elegance and wearability.

Cornflower-inspired blue with balanced beauty

The sapphire shows a refined blue that feels vivid and sophisticated without becoming overly dark. The “cornflower” character is prized for its harmony—bright enough to look lively and open, yet rich enough to feel luxurious in both daylight and indoor lighting.

Cushion cut — timeless, romantic, and versatile

With its softly rounded corners and elegant outline, the cushion shape blends classic charm with a modern presence. It’s a perfect choice for:

  • solitaire rings

  • halo designs

  • vintage-inspired settings

  • pendants and signature everyday jewelry

A strong, elegant center stone

At 1.31 ct, this sapphire has excellent presence while remaining wearable and practical. It pairs beautifully with white gold or platinum for a crisp, high-end contrast, and also looks stunning in yellow gold for a warmer, classic look.

A timeless Sri Lankan cushion sapphire with refined cornflower-blue color—made to become the centerpiece of an elegant jewelry design.

Specification

Overview

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Processor

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Display

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

RAM

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Storage

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Video Card

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Connectivity

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Features

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

Battery

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

General

Stone(s)
Total weight1.31 ct / 1 pcs
Country of OriginSri Lanka
TreatmentTraditional Heat
Stone TypeType II
TransperencyTransparent
ClarityVS
Saturation / ToneRich
ShadeCornflower
ColorBlue
Shape(s)Cushion
Cutting StyleFaceted
Cut CrownBrilliant Cut
Cut PavilionStep Cut
Dimensions 1 (L/W/H)6.70 x 5.32 x 3.90 mm
Gemstone Seletion
HTS-Code7103.91.0000
Refractive Indexnω = 1.768–1.772 & nε = 1.760–1.763
Birefringence0.008
Hardness (Mohs)9
Gravity3.98 – 4.06
Crystal SystemTrigonal
Chemical FormularAl2O3, Aluminium oxide
CertificateOn Request
Region / MineRatnapura

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