What does a GIA report certify?

A GIA report from the Gemological Institute of America independently confirms a stone's species and variety, its treatment status (heated, unheated, or otherwise treated), and in many cases its country of origin. GIA is an independent, non-profit laboratory with no financial stake in the sale.

Why do only some stones have GIA reports?

Full laboratory reports are generally reserved for larger or finer stones where the cost of certification is proportionate to the stone's value. Smaller or more affordable stones may still be entirely natural and accurately described without a formal GIA report.

Does a GIA report guarantee a stone is unheated?

No - a GIA report states the treatment status as observed, which may be heated or unheated. We disclose treatment status plainly on every product page regardless of what the report shows, so buyers can filter for unheated stones specifically if that matters to them.

What makes this 2.175 ct unheated Ceylon yellow sapphire unique?

Unheated Ceylon yellow sapphire above 2 carats is meaningfully rarer than sub-1-carat material — most unheated yellows available in the market are much smaller, making this a genuine collector-tier stone.

What does the Mixed Brilliant cut mean for this sapphire?

A Mixed Brilliant cut combines a modified brilliant-style crown (facets for maximum sparkle) with a step-cut pavilion (facets for color depth), as documented on the GIA report — giving this stone both brightness and rich, saturated color.

What are the care instructions for this yellow sapphire?

Clean it regularly with mild soap and warm water, avoid harsh chemicals, and store it separately from other jewelry to prevent scratches.

What does the GIA report confirm about this sapphire?

GIA Report #1236922088 confirms the stone's weight, dimensions, yellow color, transparency, and no indications of heating; geographic origin was not requested for this report.

Is this yellow sapphire suitable for daily wear?

Yes, corundum's hardness (9 on the Mohs scale) makes this yellow sapphire suitable for both everyday wear and special occasions.

2.175 ct Cushion Yellow Sapphire showcasing a vibrant golden yellow hue, sourced from Sri Lanka, unheated.

2.175 ct cushion unheated Ceylon yellow sapphire rotating to show golden hue and brilliance

2.175 ct Cushion Yellow Sapphire featuring a bright golden yellow hue, expertly cut for depth and brilliance.

2.175 ct Cushion Yellow Sapphire GIA Gemological Report detailing its characteristics and origin.

2.175 ct Cushion Yellow Sapphire, unheated, showcasing its golden yellow hue and cushion cut brilliance.

2.175 ct natural unheated yellow sapphire video showing clarity and sparkle under light

2.175 ct Cushion Yellow Sapphire set on a silver ring, displaying its golden hue on a hand.

A hand wearing a ring featuring a 2.175 ct Cushion Yellow Sapphire set in a simple band.

This video is of the actual gemstone, we do not use 'stock' photos. The item is filmed under high magnification. Inclusions are far less visible to the naked eye than in the video.

CG8336

2.175 ct Natural Unheated Yellow Sapphire – Cushion Cut | GIA Certified | Sri Lanka (Ceylon)

1 total reviews

$3,713.00 CAD

Per Carat: $1,711.06

Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.

Stone Style	Faceted
Stone Type	Sapphire
Weight (Ct.)	2.17
Enhancement	No Enhancement
Origin	Sri Lanka (Ceylon)
Clarity	Eye Clean
Color	Yellow
Color Description	Lemon Yellow
Color Intensity	Medium Intense
Stone Shape	Rectangular Cushion
Dimensions (mm)	8.20 x 6.02 x 4.50
Cut	Mixed Brilliant
Lab Report	GIA

2.175 carat rectangular cushion-cut yellow sapphire, sourced from Sri Lanka (Ceylon) and completely unheated, measuring 8.20 × 6.02 × 4.50 mm. At over 2 carats unheated, this is a meaningful size in a color where unheated Ceylon material above 1.5 carats becomes genuinely uncommon. Accompanied by GIA Report #1236922088, a Sapphire Report confirming weight, dimensions, color, transparency, and treatment.

Expert Opinion

Ahmed Shareek, founder of Crescent Gems:

"Unheated yellow sapphire over 2 carats is not something you see often — most yellow sapphire on the market has been heat-treated to improve or set the color. This stone earned its golden-lemon hue naturally, and the GIA report backs that up."

Rarity Analysis

Treatment: The overwhelming majority of yellow sapphire in the market is heat-treated to produce or improve its color; this stone shows no indications of heating, per GIA.
Size: Unheated Ceylon yellow sapphire above 1.5–2 carats is genuinely uncommon — most natural-color material of this hue is found in smaller sizes.
Color: A clean Golden Yellow (Lemon Yellow) hue, without the need for treatment to reach this saturation.
Clarity: Eye-clean, with no visible inclusions to the unaided eye.
Documentation: Accompanied by GIA Report #1236922088, confirming weight, dimensions, color, transparency, and treatment. Origin is seller-stated as Sri Lanka (Ceylon); this GIA report is a standard Sapphire Report, not an Origin Report, so GIA has not confirmed origin.
Combined effect: An unheated, eye-clean, GIA-documented yellow sapphire above 2 carats is a scarce combination of factors that rarely lines up in one stone.

Buying Guidance

Always confirm unheated status through an independent lab report rather than a seller's word alone — this stone's GIA report explicitly states no indications of heating.
Understand what the certification does and does not cover: this GIA Sapphire Report confirms weight, dimensions, color, transparency, and treatment, but does not confirm origin.
Treat the Sri Lanka (Ceylon) origin as seller-stated rather than lab-confirmed, since no Origin Report accompanies this stone.
Compare pricing against heated yellow sapphires of similar size and color — unheated material of this size and clarity commands a real premium for good reason.
Try Before You Buy: Request additional photos or a video call to view the stone in hand before purchasing.

Learn More About This Gemstone

Gemstone Data — At a Glance

Item #	CG8336
Carat Weight	2.175 ct
Species / Variety	Natural Yellow Sapphire (Corundum)
Shape / Cut	Rectangular Cushion, Mixed Brilliant
Dimensions	8.20 × 6.02 × 4.50 mm
Color / Intensity	Golden Yellow (Lemon Yellow)
Phenomenon	None
Treatment	Unheated (no indications of heating)
Origin	Sri Lanka (Ceylon) — seller-stated, not GIA-confirmed
Clarity	Eye-clean
Transparency	Transparent
Hardness	9 (Mohs)
Certification	GIA Report #1236922088

Features

SKU: CG8336
Carat Weight: 2.175 carats
Variety: Yellow Sapphire
Shape: Rectangular Cushion
Cutting Style: Mixed Brilliant (modified brilliant crown, step cut pavilion)
Dimensions: 8.20 × 6.02 × 4.50 mm
Gem Type: Natural Yellow Sapphire
Origin: Sri Lanka (Ceylon)
Treatment: Unheated (no indications of heating)
Color: Golden Yellow (Lemon Yellow)
Transparency: Transparent
Clarity: Eye-clean
Certification: GIA Report #1236922088
Hardness: 9 on the Mohs scale

Care

Clean with lukewarm water and mild soap using a soft brush
Store separately to avoid surface contact
Remove before heavy physical activity
Avoid ultrasonic or steam cleaners

One of a Kind

This is a single natural gemstone, not a manufactured or lab-created replica — no two sapphires form with identical color, inclusions, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the GIA report is the exact, individual stone you receive.

What's included with this Yellow Sapphire

GIA Report #1236922088
Gemstone packed in a gem sleeve

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Explore the complete journey of a gemstone—from its birth beneath the Earth's surface, through traditional mining and precision faceting, to the moment it becomes a timeless piece ready to be admired and cherished.

Choosing a gemstone for an engagement ring or important piece of jewellery is a deeply personal decision. It is often a meaningful purchase made only a few times in a lifetime, so trust, accurate information and expert guidance matter. Crescent Gems combines more than 25 years of gemstone experience with direct sourcing, careful cutting and transparent treatment disclosure to help you choose with confidence

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