Garnet Price Calculator – Tsavorite Garnet Pricing Formula Explained
The Garnet Price Calculator on MyTimeCalculator focuses on Tsavorite, the vivid green variety of grossular garnet. Instead of guessing or relying on scattered price lists, you can enter the key quality factors and see how they combine into an estimated price and price per carat.
Tsavorite pricing is driven by more than carat weight. Dealers and collectors pay close attention to color saturation, clarity and size. This calculator captures those ideas in a single formula so you can see how each factor affects the final number.
The Core Tsavorite Pricing Formula
The calculator uses a five-part formula. Let W be the carat weight, P the base price per carat, S the color saturation factor, C the clarity factor and R the size rarity factor. The estimated Tsavorite garnet price is:
To understand the effective price per carat, divide the total by the carat weight:
This shows that weight W determines how large the stone is, but the effective price per carat is controlled by the chosen base price P and the three quality factors S, C and R.
Step 1: Carat Weight And Base Price Per Carat
Carat weight is the most familiar part of the formula. Larger Tsavorite stones are rarer and can command higher prices per carat, especially above 2 or 3 carats.
- Carat weight W: the stone’s weight in carats.
- Base price per carat P: a starting value per carat before quality adjustments.
The calculator offers market levels such as commercial, good, fine and investment. Each level loads a suggested base price per carat. You can overwrite this number to match your own market or a specific price list you are using.
Step 2: Color Saturation Factor S
Color is critical for Tsavorite. Stones that are too pale look washed out, while stones with rich, balanced green saturation draw strong demand. The calculator uses a saturation factor S to represent this effect in numeric form.
A typical mapping for S looks like this:
- Pale or light green: S less than 1.0 to reduce the estimate.
- Medium green: S near 1.0 for average color.
- Strong green: S above 1.1 for better color.
- Vivid green: S above 1.3 for highly desirable color.
- Exceptional saturated green: S at the top of the scale for standout stones.
In the formula Estimated Tsavorite Price = W × P × S × C × R, S scales the base price P. Moving from pale to vivid color can significantly increase the estimated price per carat.
Step 3: Clarity Factor C
Clarity describes how easily you can see inclusions or imperfections inside the stone. Tsavorite often has some internal features, but stones that are clean to the eye or even loupe-clean are more valuable.
The calculator uses a clarity factor C with simplified grades:
- Included: C below 1.0 to discount heavily included stones.
- Slightly included: C around 1.0 for noticeable but acceptable inclusions.
- Eye-clean: C above 1.0 when inclusions are not visible to the naked eye.
- Very clean: C higher still for stones that look clean even in close viewing.
- Loupe-clean: C at the top of the scale for stones that under magnification show minimal or no inclusions.
Because C multiplies the base price in the formula, moving from included to eye-clean or loupe-clean can have a major effect on the estimate.
Step 4: Size Rarity Factor R
Size rarity is especially important for Tsavorite. Fine Tsavorite above 2 or 3 carats is noticeably scarcer than small stones and often carries a strong price premium.
The calculator applies a size rarity factor R based on the carat weight W. A typical stepwise structure is:
- Under 1.0 ct: R near 1.0 for common small stones.
- 1.0–1.99 ct: R modestly above 1.0 to reflect mild rarity.
- 2.0–2.99 ct: R higher to reflect increased scarcity.
- 3.0–4.99 ct: R significantly above 1.0 as stones become rare.
- 5.0 ct and above: R at the top of the scale for exceptional sizes.
Because R multiplies the entire product, it magnifies the effect of high quality in larger stones. A vivid, eye-clean Tsavorite at 3 ct can be worth many times more than a similar 0.5 ct stone.
Worked Example: Fine Medium-Sized Tsavorite
Consider a 1.80 ct Tsavorite with the following characteristics:
- Carat weight W = 1.80 ct
- Base price per carat P = 800
- Color saturation factor S = 1.3 for strong green
- Clarity factor C = 1.2 for eye-clean clarity
- Size rarity factor R = 1.2 for a stone just under 2 ct
The estimated price per carat is:
The estimated total price is:
This example shows how strong color, clean clarity and a moderate size rarity factor can raise the effective price per carat above the initial base price.
How To Use The Tsavorite Garnet Price Calculator
- Enter the stone’s carat weight W as accurately as possible.
- Select a market level such as commercial, good, fine or investment, or choose custom and enter your own base price per carat P.
- Choose the color saturation level that best matches the stone, from pale to exceptional.
- Select a clarity grade from included to loupe-clean based on how easily you can see inclusions.
- Click the calculate button to compute the total price and price per carat. The calculator automatically assigns a size rarity factor R from the weight.
- Review the breakdown table to see how each factor contributes to the final result.
Understanding The Limits Of Formula-Based Tsavorite Pricing
While formulas are useful for building intuition, actual market prices are influenced by many nuances. Cut proportions, polish quality, windowing, extinction, color zoning, origin and current demand all play important roles.
The Garnet Price Calculator is best used for learning, rough valuation and comparing scenarios. If you are working with a high-value stone or need a number for insurance, tax or legal reasons, you should seek a written appraisal from a qualified gemologist.
Comparing Tsavorite To Other Gemstones
If you are planning a gemstone budget or comparing opportunities, it can be helpful to look at multiple gemstone calculators on MyTimeCalculator. For example:
- Ruby Price Calculator for red corundum pricing logic.
- Tourmaline Price Calculator for classic and Paraiba-like tourmalines.
- Opal Price Calculator for pattern-based opal valuation.
- Spinel Price Calculator for modern favorite spinel varieties.
Garnet Price Calculator FAQs
Frequently Asked Questions About Tsavorite Garnet Pricing
Find quick answers about how this Tsavorite-focused Garnet Price Calculator works and how to interpret its results.
The calculator multiplies carat weight by a base price per carat and then applies color saturation, clarity and size rarity factors. The output is an estimated total price and price per carat that reflect the quality settings you choose.
This calculator is optimized for Tsavorite. You can use it as a rough guide for other green grossular garnets, but for very different garnet types such as Rhodolite or Spessartite you may prefer a dedicated pricing tool or different presets.
The prices are educational estimates based on simplified multipliers. They are not guaranteed market values and should not be treated as binding offers. Always compare with current dealer lists and real sale prices when making decisions.
Yes. As carat weight increases, the size rarity factor rises, which can dramatically increase the estimate for large, fine stones. However, truly exceptional stones can exceed any simplified model, so treat those results as a starting point for further research.
Yes. You can change the currency label from USD to any code or symbol you prefer, such as EUR, GBP, AED or your local currency. The calculator does not perform exchange rate conversions, it simply attaches your label to the numeric result.
If you are buying or selling at typical retail, fine or investment levels, choose the option that best matches the overall quality tier. For wholesale or special situations, you may prefer the custom option and set the base price per carat yourself.
No. It is a helpful analytical tool but does not replace the skills and detailed inspection of a trained gemologist. Use it for learning, budgeting and comparing scenarios, then consult a professional for critical decisions and documentation.
Cut quality and shape are not explicitly parameterized. If a stone has an exceptional or poor cut, you can reflect this by adjusting the base price per carat or by choosing more generous or conservative quality factors as appropriate.
The calculator computes the size rarity factor automatically from the carat weight using an internal scale. This keeps the interface simple while still reflecting the typical premium attached to larger Tsavorite stones.
You can explore additional gemstone calculators on MyTimeCalculator, such as Ruby Price Calculator, Opal Price Calculator, Tourmaline Price Calculator and Spinel Price Calculator. Using similar tools across multiple gems makes comparisons easier.