Gemstone guide
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What is Grossular Garnet?
Grossular Garnet is the grossular variety of garnet, coloured by presence of iron and manganese. A guide to the gem, and to buying one well.
About Grossular Garnet
01- Species
- Garnet
- Variety
- Grossular
- Hardness (Mohs)
- 7
- Refractive index
- 1.74 - 1.76
- Colour caused by
- Presence of iron and manganese
Grossular Garnet, a captivating member of the garnet family, enchants with its spectrum of hues ranging from lush greens to warm yellows and browns. This remarkable gemstone, sourced from the rich terrains of Africa, remains untouched by heat treatments, preserving its natural allure. The allure of Grossular Garnet lies in its vibrant colours and exceptional clarity, with stones available in clarity grades from VS to the exquisite IF. Each gem is meticulously cut, whether in a fine step cut or a modified brilliant cut, enhancing its inherent beauty and brilliance.
Grossular Garnet's value is driven by its unique colour palette and clarity, offering a luxurious choice for those seeking something truly distinctive. With prices starting from around $75 per carat, these gems provide a sophisticated option for fine jewellery connoisseurs. Many stones are accompanied by a laboratory certificate, and certification is available on request, ensuring confidence in every purchase.
Judging quality
02What drives the value
- Colour saturation
- Clarity
- Cut quality
What to watch for when buying
- Overpaying for stones with poor clarity
- Assuming all garnets are treated
Inclusions you may see
- Minor inclusions visible under magnification
- Silk-like inclusions
Origin, treatment and trade names
03Where it comes from
TreatmentAs disclosed for the stones we sell; every listing states its own.
Trade names
Price per carat
04- Typical price
- $168 per carat
- Most stones
- $107–$226 per carat
- Based on
- 117 stones in our stock, updated weekly. Grossular Garnet prices by carat size →
From our stock
05
Frequently Asked Questions
06Where do Grossular Garnets come from?
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Our Grossular Garnets are sourced from Africa, a region renowned for producing gemstones of remarkable quality and vibrant colours.
Are Grossular Garnets treated?
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Grossular Garnets in our collection are unheated, retaining their natural beauty and authenticity.
What determines the value of a Grossular Garnet?
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The value of Grossular Garnet is largely influenced by its colour, clarity, and cut. Stones with vivid colours and high clarity are particularly prized.
How should I choose a Grossular Garnet?
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When selecting a Grossular Garnet, consider the stone's colour, clarity, and cut. These factors, combined with personal preference, will guide you to the perfect gem.
Are Grossular Garnets certified?
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Many Grossular Garnets in our collection come with a laboratory certificate, and certification is available on request for any stone.
Shop
Grossular Garnet
Every stone shows its own price, weight, origin and treatment. Browse our grossular garnet, or contact our team for personal help choosing one.