1.09 ct Natural Ruby, Madagascar – Octagonal Step Cut (Emerald Cut), Heated | GIA Ruby Origin Report 5232922092

1.09 carat ruby, octagonal step cut, measuring 7.43 × 5.16 × 2.69 mm, accompanied by GIA Ruby Origin Report #5232922092 dated 16 April 2026. The report records Color Red, Transparency Transparent, Species Natural Corundum, Variety Ruby, Shape Octagonal, Cutting Style Step Cut, and an Additional Results field that reads Heated. It gives Madagascar as the geographic origin, as an expert opinion.

What the Report Records

The limit of our own reporting. We report the fields GIA printed on this document. Where we add a view of our own, such as the clarity assessment, the setting advice and the cleaning preference, we mark it as ours.

Read it yourself. The report is reproduced in the images on this page, and GIA's own service at reportcheck.gia.edu returns the same fields against the report number. Check it there, and ask us for anything else you want to see before you buy.

Geographic origin. The Geographic Origin field reads Madagascar. In its Comments section, GIA prints: "Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data." We print the field and the caveat together and add nothing to either.

Additional Results. The field reads Heated. That is the treatment entry GIA printed on this report, and we report it exactly as printed.

Shape and cutting style. The report gives Shape Octagonal and a single Cutting Style field, Step Cut. The trade calls an octagonal step cut an emerald cut; that name is ours, not the report's.

Clarity. Face-up, at normal viewing distance, we describe it as eye-clean. Under magnification fractures are visible, and some can be seen in GIA's report photograph. That is our own assessment rather than a report value, because a GIA colored-stone report carries no clarity grade.

Buying Guidance

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

• Read GIA Report #5232922092 against the stone. Check the report number, the carat weight, the measurements, the shape, the color, the transparency, the cutting style and the Additional Results entry against the physical stone before you finalise the purchase.
• Look at the whole face-up view. Ask us for more images and video and look at the whole face before you decide.
• Plan the setting around the stone's proportions. An octagonal outline has cut corners rather than points. We would choose a setting that holds the girdle securely at all four corners; that is our own recommendation.

Species Characteristics

The three values below describe corundum as a mineral species. They are not findings about this individual stone. GIA prints them in the Characteristics panel of this report.

• Mineral: Corundum
• Mohs hardness: 9. Heat does not change corundum's Mohs hardness.
• Toughness: Excellent

Separately, this report prints July as the birthstone month. July belongs to ruby.

Learn More About This Gemstone

• GIA Guide
• Custom Ring Guide

Features

• SKU: CG8407
• Carat Weight: 1.09 carats
• Measurements: 7.43 × 5.16 × 2.69 mm
• Shape: Octagonal
• Cutting Style: Step Cut
• Color: Red
• Transparency: Transparent
• Species: Natural Corundum
• Variety: Ruby
• Geographic Origin: Madagascar
• Additional Results: Heated
• Laboratory Report: GIA Report #5232922092

Care

GIA publishes its own cleaning guidance for ruby. We prefer warm soapy water and a soft brush to ultrasonic or steam cleaners, because we cannot see how a stone is held once it is set. That preference is ours, not a condition carried on the report.

• Clean with lukewarm water and mild soap using a soft brush
• Store separately to avoid surface contact
• Once it is set, take it off for heavy physical work

This Stone

This is one individual natural gemstone, not laboratory-grown material. The stone you receive is the stone documented on GIA Report #5232922092.

What's included with this Ruby

• GIA Report #5232922092
• Gemstone packed in a gem sleeve