8.17×5.64×3.52 Diamond: Everything You Need to Know Before Buying

The 8.17×5.64×3.52 diamond is making waves in the jewelry world, especially among serious buyers and collectors. These exact measurements often refer to a specific fancy-shaped diamond, most likely an emerald cut or oval cut, and they offer a unique blend of sparkle, size, and elegance. Whether you’re a seasoned gem enthusiast or a first-time buyer exploring the market, understanding what these dimensions mean can help you make an informed decision.

In this comprehensive guide, we’ll break down the meaning of 8.17×5.64×3.52 mm diamond dimensions, discuss carat weight estimates, shape implications, price range, and how to evaluate value, beauty, and authenticity.

Understanding Diamond Dimensions: 8.17×5.64×3.52 mm

The numbers 8.17×5.64×3.52 mm represent the length, width, and depth of a diamond, respectively. These measurements are critical in determining how a diamond looks and performs when set in jewelry.

1. Length (8.17 mm)

The longest part of the diamond. In fancy cuts, this contributes to a more elongated appearance and helps fingers appear slimmer when set in a ring.

2. Width (5.64 mm)

This is the horizontal measurement across the diamond’s surface. It’s important in understanding the shape and spread of the diamond.

3. Depth (3.52 mm)

This is the vertical measurement from the top (table) to the bottom (culet). Depth percentage affects the brilliance of the stone.

What These Dimensions Suggest

• Likely a fancy cut diamond: emerald, radiant, or oval.

• Elongated shape, desirable for engagement rings.

• Slim depth relative to length/width, possibly enhancing surface area (face-up size).

Estimated Carat Weight of an 8.17×5.64×3.52 Diamond

While the exact carat weight of a diamond is determined by scale, we can estimate it using a formula for fancy shapes. An emerald or radiant cut diamond with these dimensions typically weighs around 1.10 to 1.30 carats, depending on the depth and girdle thickness.

Carat Weight Estimate Formula:

For rectangular shapes:
Carat = (Length x Width x Depth x 0.0061)
→ 8.17 x 5.64 x 3.52 x 0.0061 ≈ 0.98 carats

However, most commercial diamonds of this dimension range are slightly thicker and weigh more due to girdle thickness. So, it’s safer to assume 1.00 to 1.20 carats in practice.

What Shape Is an 8.17×5.64×3.52 Diamond?

The proportions strongly suggest a rectangular fancy shape. Here’s a breakdown of what shapes it could likely be:

Given the length-to-width ratio of approximately 1.45 (8.17 ÷ 5.64), this is well within the ideal range for an emerald cut, which typically ranges from 1.30 to 1.50.

Ideal Depth and Table Percentage for Emerald Cut Diamonds

Depth Percentage

The depth of a diamond affects how it handles light. For emerald cuts:

• Ideal depth range: 60–68%

• Current depth %: 3.52 ÷ 8.17 × 100 ≈ 43.1%

This is shallower than typical, which may mean:

• A larger face-up size (appears bigger)

• Slight reduction in brilliance or light return

• Could indicate a lower cut grade or a specialty cut

Table Percentage

Though not directly provided, the table is the large, flat surface on top. Ideal table percentage for emerald cuts is 61–69%.

8.17×5.64×3.52 Diamond: Price Range and Factors

The price of a diamond with these measurements varies based on several factors:

1. Carat Weight

Assuming 1.00–1.20 carats, expect prices between:

• $3,500 to $7,000 for standard emerald cut

• $7,000+ for premium diamonds (G color, VS1 clarity or better)

2. Cut Quality

Shallow depth could mean it was cut for spread (to look larger), which may decrease brilliance. This could affect pricing.

3. Color and Clarity

• Color: D-F = Colorless (higher price), G-H = Near Colorless (balanced value)

• Clarity: VS1–VS2 is ideal for emerald cuts due to visible step facets

4. Certification

Always look for GIA or AGS certification. A diamond with exact measurements like 8.17×5.64×3.52 will be clearly noted in a GIA report.

Advantages of Choosing This Diamond Size

Choosing a diamond with these dimensions comes with several perks:

✅ Larger Appearance

With a shallower depth, the diamond may appear larger on the finger.

✅ Elegant Proportions

The elongated shape flatters most hand shapes and complements classic settings like solitaire or three-stone.

✅ Better Value

Fancy shapes like emerald cuts often cost 20–30% less per carat compared to round cuts of similar size.

Setting Styles for an 8.17×5.64×3.52 Diamond

The size and shape of this diamond make it ideal for a variety of stunning ring styles:

1. Solitaire Setting

Minimalist and elegant, puts the spotlight on the diamond.

2. Halo Setting

Adds sparkle with a border of smaller diamonds; enhances perceived size.

3. Three-Stone Setting

Classic style with two side stones—great for engagement rings.

4. East-West Setting

Places the diamond horizontally for a modern twist.

How to Verify Authenticity

Before buying a diamond with the dimensions 8.17×5.64×3.52 mm, take the following steps:

🔍 Request a Grading Report

Always choose a diamond that is GIA or AGS certified.

🔬 View Under Magnification

Step cuts like emerald reveal inclusions easily—clarity is vital.

💡 Check for Light Performance

Ask the jeweler to show light performance imagery (ASET or Idealscope).

Best Practices for Buying an 8.17×5.64×3.52 Diamond

1. Prioritize Clarity and Cut: Especially important for step cuts.

2. Compare Depth Ratios: Shallower stones may sparkle less, but look bigger.

3. Review Length-to-Width Ratio: Ensure it aligns with your shape preference.

4. Ask for Real Photos or Videos: Dimensions alone can’t show beauty.

5. Set a Budget with Certification in Mind: A GIA report adds trust and resale value.

Is the 8.17×5.64×3.52 Diamond Right for You?

If you’re looking for a balance between size, elegance, and value, this diamond could be perfect—especially if it’s an emerald cut with great clarity and a clean look. Its elongated shape is timeless and works with both modern and vintage-style settings.

It’s ideal for:

• Engagement rings

• Heirloom jewelry

• Stylish minimalists

• Value-conscious buyers

Frequently Asked Questions (FAQs)

Q1: What carat is a diamond with 8.17×5.64×3.52 mm dimensions?

It likely weighs between 1.00 to 1.20 carats, depending on depth and girdle thickness.

Q2: Is this a good size for an engagement ring?

Yes! It’s a perfectly balanced size for most hands—large enough to stand out, but not oversized.

Q3: Are these dimensions common?

Not extremely common, but frequently seen in emerald and radiant cuts in the 1-carat range.

Q4: What’s the price range?

Expect $3,500–$7,000, depending on quality and certification.

Conclusion: A Smart Choice for Timeless Beauty

The 8.17×5.64×3.52 diamond offers a striking blend of size, brilliance, and elegance—especially when cut properly and chosen with clarity and color in mind. Whether set in a classic solitaire or a dazzling halo, its proportions bring a sophisticated look that flatters the hand and turns heads.

For the best experience, always shop with a reputable jeweler, request detailed certification, and understand how cut and depth impact light performance. When done right, this diamond could be a lifetime treasure that shines across generations.

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