1.75 ct Natural Unheated Teal Sapphire – Cushion Cut | GIA Certified | Madagascar

A natural 1.75 carat teal sapphire in a cushion cut, completely unheated, certified by GIA (Report #1246017790). Teal sapphire is natural corundum at the intersection of blue and green — a dual-tone color that shifts between its blue and green components depending on angle, distance, and light source. The cushion cut at 1.75 carats concentrates the teal saturation across a broad face, making the color-shift character visible and vivid in any setting. Teal sapphire is almost universally unheated — heat treatment typically collapses the blue-green balance into a single hue, and GIA's report confirms no indications of heating on this stone.

Rarity Analysis

Several factors work together to place this teal sapphire outside the ordinary run of sapphire supply:

• Color: Teal — the blue-green dual-tone corundum color — is one of the less commonly stocked sapphire hues compared to mainstream blue, pink, or yellow.
• Size: At 1.75 carats in a cushion cut, this stone is large enough to serve as a confident center stone, a size bracket that thins out quickly for teal sapphire specifically.
• Treatment: Unheated, confirmed by GIA Report #1246017790 — teal sapphire is typically found unheated already, but independent lab confirmation removes any uncertainty for the buyer.
• Clarity: Graded Slightly Included, meaning only minor inclusions are visible under magnification — a clean face for a natural, untreated stone.
• Documentation: Accompanied by a GIA report, the gemological world's most widely trusted grading authority, verifying weight, shape, color, and the absence of heat treatment.
• Combined effect: A GIA-documented, unheated teal sapphire at this size and clarity is a genuinely uncommon combination, since teal's overall supply is smaller than mainstream blue sapphire and larger clean stones are harder to source.

Buying Guidance

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

• View it in mixed lighting. Teal sapphire's blue-green shift is most visible when you compare the stone under daylight and indoor lighting side by side — a single lighting condition won't show its full character.
• Plan the setting around its face-up size. At 6.81 x 5.80mm, this cushion cut will read as a substantial center stone; confirm your ring head or bezel is sized to the stone's actual footprint before committing to a design.
• Confirm any comparison stone's lab documentation. Not every teal sapphire on the market carries independent confirmation of no heat treatment — verify that any stone you compare this one against has its own GIA (or equivalent) report.
• Expect limited availability at this size and clarity. As noted in the Rarity Analysis above, GIA-documented unheated teal sapphires above 1.5 carats with Slightly Included clarity are not something you'll find in unlimited supply — sourcing a directly comparable stone may take time.
• 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
• Unheated Sapphire Guide
• GIA Guide
• Cushion Cut Sapphire Guide
• Custom Ring Guide
• Sapphire Buying Guide

Why Choose this 1.75 ct Unheated Cushion Teal Sapphire?

Cushion teal sapphire at 1.75 carats is the format most designers and buyers request for teal engagement rings — the cushion cut's broad face-up surface maximizes the visible blue-green, and the weight is substantial enough for a confident center stone in any mounting. Unheated status is standard for teal — the color that most consistently delivers its character without thermal assistance, and is independently confirmed here by GIA.

Key Benefits of this Natural Teal Sapphire

• GIA-Certified Unheated Natural Teal
  No thermal treatment — confirmed by GIA Report #1246017790, the blue-green balance is entirely natural and preserved.
• Cushion Cut Saturation
  The cushion geometry concentrates the dual blue-green tonal character across the face.
• Strong Center Stone Size
  1.75 carats in a cushion — a substantial teal engagement ring center stone.
• Color-Shifting Character
  Shifts between blue and green across light sources — a dynamic, living color.
• Durable for Daily Wear
  Corundum at Mohs 9, second only to diamond.

Features

• Carat Weight: 1.75 Carats
• Gem Type: Natural Teal Sapphire
• Shape: Cushion
• Cut Style: Modified Brilliant
• Treatment: Unheated (GIA Report #1246017790)
• Origin: Madagascar (store's own assessment; geographic origin was not requested on the GIA report)
• Color: Teal (blue-green)
• Transparency: Transparent
• Clarity: Slightly Included
• Certification: GIA Report #1246017790
• Hardness: 9 on the Mohs scale

This 1.75 ct unheated cushion teal sapphire has been hand-selected for the balance of its blue-green tonal character and the quality of its cushion cut — the combination that defines a fine teal sapphire center stone.

Why Customers Love This Gemstone

• GIA-Certified Unheated Teal: Natural blue-green — confirmed by GIA Report #1246017790.
• Cushion Center Stone Format: The most requested format for teal sapphire engagement rings.
• Color-Shift Dynamic: A stone that reads differently in every light — never static.
• Trusted Source: Treatment independently confirmed by GIA; origin listed as the store's own assessment.

Owning this 1.75 ct unheated cushion teal sapphire means choosing the most popular format for the most searched non-blue sapphire color in the contemporary engagement market.

Perfect Uses for this 1.75 ct Teal Sapphire

• Non-traditional engagement ring center stone
• Custom pendant in white gold or rose gold
• Three-stone ring center stone
• Collectors of unheated teal sapphires
• Contemporary design commission