0.50ct Adjustable Lab Moissanite Diamond Ring
Step 1: Measure Your Finger
- Cut a thin strip of paper or grab a piece of string.
- Wrap it around your finger’s base, marking where the ends overlap.
- Lay it flat and measure the length with a ruler (in millimeters).
- Match your measurement to our ring size chart (see below).
Important: String can stretch, so don’t pull too tight while measuring.
Step 2: Consider These Fit Factors
Your ring size isn’t always the same - it can change based on different conditions. Keep these factors in mind for the best fit:
- Time of Day Matters – Fingers are smaller in the morning and larger in the evening because of natural swelling. Measure in the evening for the most comfortable fit.
- Temperature Changes Everything – Cold fingers shrink, warm fingers expand. Measure at room temperature for the best accuracy.
- Knuckles Can Affect Fit – If your knuckles are large, go half a size up so the ring slides on easily but still fits securely.
- Band Width Plays a Role – Wider bands feel tighter, so you might need to go up half a size for a thick ring.
Pro Tip: If you’re between sizes, it’s usually best to size up - a jeweler can always adjust the fit if needed.
Step 3: Match Your Size to the Chart
Now that you’ve measured your finger, use our Ring Size Chart to find your perfect match.
| Ring Diameter (MM) | USA/Canada | United Kingdom | France | Germany | Japan | Switzerland |
|---|---|---|---|---|---|---|
| 14.0 mm. | 3 | F | 44 | 14 | 4 | 4 |
| 14.4 mm. | 3½ | G | 45¼ | 14½ | 5½ | 6⅓ |
| 14.8 mm. | 4 | H½ | 46½ | 15 | 7 | 6½ |
| 15.2 mm. | 4½ | I½ | 47¾ | 15¼ | 8 | 8 |
| 15.6 mm. | 5 | J½ | 49 | 15¾ | 9 | 9½ |
| 16.0 mm. | 5½ | L | 50¾ | 16 | 10½ | 10¾ |
| 16.5 mm. | 6 | M | 51½ | 16½ | 12 | 12¾ |
| 16.9 mm. | 6½ | N | 52¾ | 17 | 13 | 14 |
| 17.3 mm. | 7 | O | 54 | 17¼ | 14 | 15¼ |
| 17.7 mm. | 7½ | P | 55¼ | 17¾ | 15 | 16½ |
| 18.2 mm. | 8 | Q | 56¾ | 18 | 16 | 17¾ |
| 18.6 mm. | 8½ | Q½ | 58 | 18½ | 17 | 18½ |
| 19.0 mm. | 9 | R½ | 59¼ | 19 | 18 | 20 |
| 19.4 mm. | 9½ | S½ | 60¾ | 19½ | 19 | 21 |
| 19.8 mm. | 10 | T½ | 61¾ | 20 | 20 | 21¾ |
| 20.2 mm. | 10½ | U½ | 62¾ | 20¼ | 22 | 22¾ |
| 20.6 mm. | 11 | V½ | 64¼ | 20¾ | 23 | 24 |
| 21.0 mm. | 11½ | W½ | 66 | 21 | 24 | 25¾ |
| 21.4 mm. | 12 | Y | 67¼ | 21¼ | 25 | 27½ |
| 21.8 mm. | 12½ | Z | 68 | 21¾ | 26 | 28¾ |
| 22.2 mm. | 13 | Z + 1 | 69 | 22 | 27 | 29¼ |
| 22.6 mm. | 13½ | Z + 1.5 | 71 | 22.6 | - | 31 |
Add a touch of effortless elegance to your everyday look with this timeless adjustable moissanite solitaire ring. Crafted from platinum-plated sterling silver, the design features a brilliant round-cut lab grown moissanite stone that delivers exceptional sparkle and fire. Certified D/VVS1, the stone mirrors the brilliance of natural diamonds while remaining an ethical and environmentally conscious choice.
The sleek band transitions into a hidden adjustable opening, allowing a comfortable and fit without compromising the refined silhouette. Perfect for gifting when you’re unsure of ring size, or as a versatile piece you can wear on any finger.
A modern classic made for daily wear, special occasions, and everything in between. Each ring arrives in a premium presentation box.
Product Code: MR24120006
Key Features:
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Product Type: Ring
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Style: Adjustable solitaire
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Stone Weight: Approx. 1.0ct (Round brilliant cut)
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Stone: Lab Grown Moissanite (Top Grade), Certified D/VVS1
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Metal: Platinum-plated sterling silver
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Fit: Adjustable band for flexible sizing
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Packaging: Comes in a presentation box
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Sustainable Luxury: Moissanite offers an ethical, eco-friendly alternative to mined diamonds
Shipping
Standard Worldwide Shipping:
Jewelry: USD $5
Handbags: USD $18
Delivery Time: 7–14 business days
Free Worldwide Shipping:
Jewelry: Free on orders over USD $60
Handbags: Free on orders over USD $350
Orders containing handbags will follow the handbag shipping rate.
Processing Time
All orders are processed and shipped within 1–3 business days (Mon–Fri, excluding public holidays).
Total delivery time = Processing time + Shipping time.
Returns & Refunds
Items may be returned within 30 days of delivery provided they are unworn, unused, and in their original packaging with all tags attached.
To initiate a return, please email support@a2k.london with your order number and reason for return before sending your item.
UK Returns Address:
A2K London Returns
1A Chilthorne Close
London SE6 4YW
United Kingdom
Return shipping costs are the customer's responsibility unless the item is faulty or incorrect. Returns sent without prior approval may not be processed.