7.5 Carat Lab Grown Diamond Tennis Necklace in 14K White Gold | An Unbroken Line of Light
$6,898.00
There's a moment right before you walk into a room — the last look in the mirror, the second you decide you're ready — and a line of diamonds like this one settles it instantly. Set edge to edge along 14K white gold, it turns with your collarbone and catches light with every small movement, so the sparkle never breaks.
Features at a Glance
- Metal: Solid 14K White Gold
- Diamonds: Lab Grown, 7.5 Carat total weight
- Color / Clarity: G–H / VS
- Length: 17 Inches
- Warranty: Free Lifetime Warranty
- Shipping: Fully insured nationwide
Buyer Questions
How many carats should a diamond tennis necklace be?
Anywhere from 1 to 5 carats total weight reads as everyday luxury, while pieces above 7 carats, like this one, make a stronger statement for special occasions or evening wear.
Are lab grown diamonds a good choice for a tennis necklace?
Yes — lab grown diamonds offer the same brilliance, hardness, and clarity grading as mined diamonds, letting you get a higher total carat weight in one piece.
In stock and ready to ship today.
Sizing Chart
Jewelry Size Guide – Rings, Bracelets, Necklaces & More
Find your perfect fit for every piece. Use our step‑by‑step guides, printable tools, and conversion charts to match Picasso Gold & Diamond jewelry to your exact size.
How to Get the Most Accurate Measurement
General tips
- Measure at the end of the day when your hands and body are at their largest.
- Measure the exact finger, wrist, neck, or ankle where you’ll wear the jewelry.
- If you are between two sizes, choose the larger size for comfort.
- Use a soft measuring tape or non‑stretch string and a ruler marked in millimeters.
For gifts
- Borrow a piece they already wear on the same area and measure it.
- Ask friends or family if they know the recipient’s size.
- When in doubt, choose a slightly larger, more adjustable design.
Ring Size Guide
All Picasso Gold & Diamond rings are listed in US sizes. Use the methods below to measure at home, then match your measurements to our ring size chart.
Method 1 – Measure an existing ring
- Select a ring that fits the intended finger well.
- Place it on a ruler and measure the inner diameter straight across the center.
- Find the closest matching diameter in the chart below.
Method 2 – String or paper strip
- Cut a thin strip of paper or use a piece of non‑stretch string.
- Wrap it around the base of your finger and mark where it overlaps.
- Measure the length in millimeters – that is your finger circumference.
- Compare your measurement to the circumference column in the chart.
Ring Size Conversion Chart
Use millimeters for the most precise fit. If your measurement falls between sizes, we recommend choosing the next half‑size up.
| US Size | Inner Diameter (mm) | Inner Diameter (in) | Circumference (mm) | Circumference (in) |
|---|---|---|---|---|
| 3 | 14.1 | 0.555 | 44.2 | 1.740 |
| 3.5 | 14.5 | 0.571 | 45.5 | 1.791 |
| 4 | 14.9 | 0.587 | 46.8 | 1.843 |
| 4.5 | 15.3 | 0.602 | 48.1 | 1.890 |
| 5 | 15.7 | 0.618 | 49.3 | 1.941 |
| 5.5 | 16.1 | 0.634 | 50.6 | 1.992 |
| 6 | 16.5 | 0.650 | 51.9 | 2.043 |
| 6.5 | 16.9 | 0.665 | 53.1 | 2.091 |
| 7 | 17.3 | 0.681 | 54.4 | 2.142 |
| 7.5 | 17.7 | 0.697 | 55.7 | 2.193 |
| 8 | 18.1 | 0.713 | 56.9 | 2.244 |
| 8.5 | 18.5 | 0.728 | 58.2 | 2.295 |
| 9 | 18.9 | 0.744 | 59.5 | 2.343 |
| 9.5 | 19.4 | 0.764 | 60.8 | 2.394 |
| 10 | 19.8 | 0.780 | 62.1 | 2.445 |
| 10.5 | 20.2 | 0.795 | 63.3 | 2.496 |
| 11 | 20.6 | 0.811 | 64.6 | 2.543 |
| 11.5 | 21.0 | 0.827 | 65.9 | 2.594 |
| 12 | 21.4 | 0.843 | 67.2 | 2.646 |
| 12.5 | 21.8 | 0.858 | 68.4 | 2.697 |
| 13 | 22.2 | 0.874 | 69.7 | 2.744 |
Values are approximate. Ring width, profile, temperature, and time of day can all affect fit.
Advanced Ring Fit Tips
- Wide bands (≥ 2.5 mm): They feel tighter. If you are between sizes, choose the larger size or go up by half a size.
- Stacking rings: For 3+ slim bands, many clients prefer half a size larger for comfort.
- Knuckles larger than the base: Consider a comfort‑fit band or sizing up ¼–½ size so the ring can pass over the knuckle but still sit securely.
- Engagement & wedding sets: Size your engagement ring first for everyday comfort, then match your wedding band to that size.
Bracelet Size Guide
Whether you love delicate chains, tennis bracelets, or bold Cuban links, the right length should feel secure while allowing natural movement.
How to measure your wrist
- Wrap a flexible tape measure around your wrist where a bracelet normally sits.
- Write down your wrist circumference in inches or millimeters.
- Add 0.5 in for a snug fit, or 0.75–1 in for a comfort/loose fit.
For bangles & cuffs
- Bring your thumb toward your little finger.
- Measure around the widest part of your hand (over your knuckles).
- Choose a bangle size slightly larger than this measurement so it can slide on and off.
Women’s Bracelet Sizes
| Fit | Wrist Circumference | Recommended Bracelet Length |
|---|---|---|
| Slim | 5.5–6.0 in (14–15.2 cm) | 6.5–7.0 in (16.5–17.8 cm) |
| Average | 6.0–6.5 in (15.2–16.5 cm) | 7.0–7.5 in (17.8–19 cm) |
| Full | 6.5–7.0 in (16.5–17.8 cm) | 7.5–8.0 in (19–20.3 cm) |
Men’s Bracelet Sizes
| Fit | Wrist Circumference | Recommended Bracelet Length |
|---|---|---|
| Slim | 6.5–7.0 in (16.5–17.8 cm) | 7.5–8.0 in (19–20.3 cm) |
| Average | 7.0–7.5 in (17.8–19 cm) | 8.0–8.5 in (20.3–21.6 cm) |
| Full | 7.5–8.0 in (19–20.3 cm) | 8.5–9.0 in (21.6–22.9 cm) |
Tennis bracelets and diamond line bracelets look best with a small amount of movement, not tight to the skin. Chunkier Cuban links may require an extra 0.25–0.5 in for the same feel.
Necklace Length & Layering Guide
Necklaces are listed by total length. Use the charts below to see where each standard length typically falls and how to layer chains and pendants.
Women’s Necklace Lengths
| Length | Name | Where It Falls |
|---|---|---|
| 14–15 in | Choker | High on the neck |
| 16–18 in | Princess | Around the collarbone (everyday length) |
| 20–22 in | Matinee | Top of the bust |
| 28–34 in | Opera | Below the bust |
| 36+ in | Rope / Lariat | Mid‑torso and below |
Men’s Necklace Lengths
| Length | Where It Falls |
|---|---|
| 18 in | Base of neck |
| 20 in | Below collarbone (classic length) |
| 22–24 in | Upper chest |
| 26–30 in | Mid to lower chest |
Earring Size Guide
Earring measurements are usually given in millimeters for diameter or length. Use this guide to visualize how different sizes will look on the ear.
Stud Earrings
| Diameter | Look & Use |
|---|---|
| 3–4 mm | Subtle everyday sparkle, great for second piercings |
| 5–6 mm | Classic size, noticeable yet refined for daily wear |
| 7–8+ mm | Bold statement studs, ideal for dressier occasions |
Hoops Width Chart Follows:
Hoop Diameter Chart
Hoop Earrings
| Hoop Diameter | Style |
|---|---|
| 10–15 mm | Huggies that sit close to the ear lobe |
| 20–30 mm | Everyday hoops with subtle movement |
| 40–60 mm | Large, attention‑grabbing statement hoops |
Thicker hoops appear smaller on the ear than thin hoops at the same diameter. For multiple piercings, combine one key piece with smaller studs or huggies for balance.
Anklet Size Guide
Anklets should sit comfortably above the ankle bone with a little movement.
How to measure
- Wrap a tape measure around your ankle, just above the ankle bone.
- Note the measurement in inches or millimeters.
- Add 0.5–1 in depending on whether you prefer a fitted or loose style.
Anklet size chart
| Fit | Ankle Circumference | Anklet Length |
|---|---|---|
| Snug | 8.0–8.5 in (20.3–21.6 cm) | 9.0 in (22.9 cm) |
| Classic | 8.5–9.0 in (21.6–22.9 cm) | 9.5–10.0 in (24.1–25.4 cm) |
| Loose | 9.0–10.0 in (22.9–25.4 cm) | 10.5–11.0 in (26.7–28 cm) |
International Ring Size Conversion
Shopping from outside the US? Use this quick reference to convert your local ring size to our US sizing.
| US Size | UK / AU | EU (ISO) | Inner Diameter (mm) |
|---|---|---|---|
| 4 | H ½ | 47 | 14.9 |
| 5 | J ½ | 49 | 15.7 |
| 6 | L ½ | 52 | 16.5 |
| 7 | N ½ | 54 | 17.3 |
| 8 | P ½ | 57 | 18.1 |
| 9 | R ½ | 59 | 18.9 |
| 10 | T ½ | 62 | 19.8 |
| 11 | V ½ | 64 | 20.6 |
| 12 | X | 67 | 21.4 |
Need Help Choosing Your Size?
For most pieces we recommend choosing the larger size, especially for wider bands and bangles. For slim, stackable rings you may prefer the smaller size for a more secure feel.
Many of our gold and diamond rings and some bracelets can be resized. Contact us with the style name or a photo and we will confirm what is possible and provide a quote.
Try to borrow a piece they already wear on the same finger or wrist and measure it, or ask a close friend or family member. When in doubt, choose a slightly larger size or an adjustable design.
Heavier, wider designs and comfort‑fit interiors can feel different from slim bands in the same size. If you know your size in a very thin band, you may prefer half a size larger in a wide statement ring.
Estimated delivery between September 26 and September 28.
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Complimentary shipping across the united states
Our Satisfaction Promise We want you to love your jewelry. For online orders, we gladly accept returns, exchanges, or store credit within 30 days of delivery. In-store purchases are eligible for exchange or store credit only within 30 days. Important: All items must be unworn with original tags attached. If the tag is removed, the item is ineligible for return. Custom orders, earrings, and items discounted 30% or more are subject to specific restrictions. Please email us at info@picassogolddiamond.com to initiate a return.
Returns & Exchange
Product specifications
Metal
Diamond Type
Lab Grown
Diamond Color
G-H
Diamond Clarity
VS
Diamond Carat Weight
7.5
Length
17"
Let customers speak for us
Necklace FAQs
The most popular necklace length is 18 inches, which sits just below the collarbone and works beautifully with most necklines. For a choker style, 14–16 inches is ideal. A 20–24 inch length creates an elegant, layered look perfect for pendants. At Picasso Gold & Diamond Jewelry, our necklaces are available in multiple lengths to suit every style.
A gold chain is crafted from solid gold links available in yellow, white, or rose gold and is valued for its metal purity and craftsmanship. A diamond necklace features diamonds set into a gold or platinum setting, such as a tennis necklace or pendant. Both are excellent investments. We carry Lab certified & In-House Certified diamond necklaces as well as solid gold chains in 10K, 14K, and 18K. For custom jewelry pieces reach out to us Via Live Chat or Email us, our team will reach out to you within 24hrs.
Yes — lab grown diamond necklaces offer the same physical, chemical, and optical properties as natural diamonds at a significantly lower price point. They are IGI certified, ethically sourced, and environmentally responsible. At Picasso Gold & Diamond Jewelry, our lab grown diamond necklaces are an excellent choice for customers who want maximum brilliance and value.
The right necklace depends on your neckline: V-neck styles pair beautifully with pendant necklaces that follow the V shape. Crew or round necks work well with longer chains or statement pieces. Off-shoulder or strapless necklines are best complemented by a choker or collar necklace. Our team at Picasso Gold & Diamond Jewelry is happy to help you find the perfect match.
14K gold is the most popular choice for necklaces — it offers the perfect balance of durability, beauty, and value with 58.3% pure gold content. 18K gold has a richer color with 75% purity but is slightly softer. 10K gold is the most durable and affordable option. All our gold necklaces are stamped and certified for purity.
Yes — we offer custom engraving and personalization on select necklace styles. Whether it's a name, date, or special message, our team can create a truly one-of-a-kind piece. Contact us at info@picassogolddiamond.com or visit our showroom (By Appointment Only) to discuss custom options. Custom orders are final sale.
Yes — we offer complimentary insured shipping across the United States on all necklace orders. Every piece is carefully packaged and fully insured during transit. Processing times vary by product; check your product page for the specific lead time. For time-sensitive orders, contact us at info@picassogolddiamond.com.
Out-of-stock items typically ship within 3–4 weeks of order placement.