1.74 ct Natural Unheated Bluish-Green Sapphire – Cushion Cut | GIA Certified | Sri Lanka (Ceylon)

A natural 1.74 carat bluish-green sapphire in a cushion cut, completely unheated, confirmed by GIA Report #5242017795. Bluish-green sapphire occupies the boundary zone between blue and teal — a hue that reads with more blue content than pure teal, giving it the visual depth of blue with the distinctive color-shift character that teal is prized for. The cushion cut concentrates this dual-tone quality across the face, producing a richer, more saturated appearance than oval or round equivalents of the same weight.

Rarity Analysis

Several factors combine to make this specific stone uncommon in the market:

• Color: Bluish-green sits in the narrow boundary zone between blue and teal sapphire — a dual-tone hue that shifts with angle and light rather than reading as a single flat color.
• Size: At 1.74 ct, the stone is large enough for the dual-tone color to read clearly face-up, a threshold many smaller bluish-green stones fall short of.
• Treatment: Unheated and GIA-confirmed as such — bluish-green sapphire is a color that heat treatment typically destroys, so unheated material in this hue is inherently scarce.
• Clarity: Eye-clean, with no visible inclusions under normal viewing, in an unheated stone of this color and size.
• Documentation: GIA Report #5242017795 independently verifies the corundum identification, carat weight, cushion shape, and absence of heat treatment.
• Combined effect: An unheated, eye-clean, dual-tone bluish-green sapphire at 1.74 ct with independent GIA documentation is a combination that does not come up often.

Buying Guidance

A few practical points to weigh before purchasing this specific stone:

• View it under mixed lighting. Because the color shifts between blue and green depending on angle and light source, look at the stone under both daylight and indoor lighting before deciding.
• Plan the setting around the cushion outline. At 6.93 x 6.19 x 4.54 mm, this rectangular cushion cut suits east-west bezel or solitaire settings that let the face-up color read without obstruction.
• Confirm treatment status on paper. When comparing to other bluish-green or teal sapphires, ask to see the lab report directly — this stone's unheated status is backed by GIA Report #5242017795.
• Expect limited alternatives at this size and clarity. As noted in the Rarity Analysis above, unheated bluish-green sapphires over 1.5 ct with eye-clean clarity are not readily replaceable if you wait.
• Use the Try Before You Buy option if you would like to see the stone in hand before finalizing the purchase.

Learn More About This Gemstone

• Teal Sapphire Buyer's Guide
• Cushion Cut Sapphire Guide
• Unheated Sapphire Guide
• GIA Guide
• Custom Ring Guide
• Sapphire Buying Guide

Why Choose this 1.74 ct Unheated Bluish-Green Sapphire?

Bluish-green sapphire is one of the few colors that is almost universally unheated — heat treatment flattens the blue-green balance and produces either pure blue or muddy olive. This 1.74 ct stone shows the dual-tone character at its best: color that shifts between blue and green depending on the angle and light source. At 1.74 carats, the size gives the color enough face-up surface to read clearly in any setting.

Key Benefits of this Natural Bluish-Green Sapphire

• Unheated Natural Color
  No thermal treatment — the blue-green balance is exactly as the earth produced it.
• Dual-Tone Color Character
  Shifts between blue and green across angles and light sources — the quality that defines this color category.
• Cushion Cut Depth
  Concentrates the color across the face-up surface, making the hue richer than in brilliant oval equivalents.
• Modern Designer Appeal
  Bluish-green and teal sapphires are the most searched non-blue sapphire color among contemporary designers.
• Durable for Daily Wear
  Corundum at Mohs 9, second only to diamond.

Features

• Carat Weight: 1.74 Carats
• Gem Type: Natural Bluish-Green Sapphire
• Shape: Cushion
• Cut Style: Mixed Brilliant
• Origin: Sri Lanka (Ceylon)
• Treatment: Unheated
• Color: Bluish-Green (teal-adjacent)
• Transparency: Transparent
• Clarity: Eye-clean — no visible inclusions under normal viewing
• Certification: GIA Report #5242017795
• Hardness: 9 on the Mohs scale

This 1.74 ct unheated bluish-green sapphire has been hand-selected for the color balance that makes this hue category distinctive — the point where blue and green exist in equal measure.

Why Customers Love This Gemstone

• Unheated, Verified: Natural blue-green balance preserved without thermal intervention.
• Trending Color Category: Teal and bluish-green sapphires are the most searched non-blue sapphire hues for engagement design.
• Cushion Cut Performance: Color reads deeper and richer than equivalent ovals.
• Trusted Source: Treatment status confirmed by GIA Report #5242017795, stone hand-selected at origin.

Owning this 1.74 ct unheated bluish-green sapphire means choosing a color that heat treatment cannot replicate — a stone defined by what it never had done to it, backed by GIA Report #5242017795.

Perfect Uses for this 1.74 ct Bluish-Green Sapphire

• Non-traditional engagement ring center stone
• Custom fine jewelry pendant
• East-west bezel setting
• Collectors of unheated fancy-color sapphires
• Contemporary design commission