Pictured Item Is Made Using Moissanite

Round brilliant moissanite held with tweezers

Loose round moissanite stone close-up brilliance view

Round cut moissanite with high clarity and sparkle

3.50 CT Round Brilliant Cut D/E/F Loose Moissanite

Name: 3.50 CT Round Brilliant Cut D/E/F Loose Moissanite
Brand: Orbion Jewels
SKU: CPMSRDBRVVSDEF10
Price: 420.0 USD
Availability: InStock

SKU: CPMSRDBRVVSDEF10

$420.00

Size chart

Every Orbion ring is handcrafted to order, so the size you choose is the size we make. It's worth a few minutes to get it right.

Three ways to find your size

1. Have it measured. The most reliable option. Any local jeweler will size your finger in under a minute, usually for free. If you're buying an engagement ring as a surprise, borrow a ring she already wears on that finger and take it in.

2. Measure a ring you already own. Lay it flat and measure straight across the inside of the band, edge to edge, in millimetres. Measure the inside, not the outside — a thick band can throw this off by a full size.

3. Measure your finger. Wrap a strip of paper or a piece of string snugly around the base of your finger. Mark where it overlaps, lay it flat, and measure the length in millimetres. That's your circumference. Snug, not tight — if it leaves a mark on your skin, it's too tight.

You can also print our paper ring sizer — A4, at 100% scale.

Size chart

US size	Inside diameter	Circumference
3	14.1 mm	44.2 mm
3½	14.5 mm	45.5 mm
4	14.9 mm	46.8 mm
4½	15.3 mm	48.0 mm
5	15.7 mm	49.3 mm
5½	16.1 mm	50.6 mm
6	16.5 mm	51.9 mm
6½	16.9 mm	53.1 mm
7	17.3 mm	54.4 mm
7½	17.7 mm	55.7 mm
8	18.1 mm	57.0 mm
8½	18.5 mm	58.3 mm
9	18.9 mm	59.5 mm
9½	19.4 mm	60.8 mm
10	19.8 mm	62.1 mm
10½	20.2 mm	63.4 mm
11	20.6 mm	64.6 mm
11½	21.0 mm	65.9 mm
12	21.4 mm	67.2 mm

Before you measure

Measure at the end of the day. Fingers are largest in the evening and smallest first thing in the morning.
Measure warm. Cold hands can read a full half size smaller.
Check the knuckle. The ring has to pass over it. If your knuckle is noticeably larger than the base of your finger, size to the knuckle.
Wide bands sit tighter. For a band wider than about 6 mm, go up a quarter to a half size.
Measure more than once, on different days.

Between sizes, or not sure?

Message us before you order. Each piece is made by hand for one person, so it is far easier to get the size right the first time.

WhatsApp us · sales@orbionjewels.com

Stone TypeStone Type : Moissanite

Stone Type : Moissanite

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Description
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A timeless expression of brilliance, this round cut moissanite showcases exceptional fire and symmetry. The classic silhouette is elevated by precise faceting, allowing light to reflect beautifully from every angle. Its clean, refined appearance makes it a perfect choice for bespoke fine jewelry, from engagement rings to elegant statement pieces.

Crafted for those who appreciate enduring design and radiant sparkle, this stone offers a balanced combination of brilliance, clarity, and versatility, making it suitable for both modern and traditional settings.

✣ 𝐒𝐊𝐔 : CPMSRDBRVVSDEF10

✣ 𝐒𝐭𝐨𝐧𝐞 𝐃𝐞𝐭𝐚𝐢𝐥𝐬 ✣

Stone Type: Moissanite
Shape: Round
Cut: Brilliant Cut
Color: D/E/F
Clarity: VVS
Size: 10 MM
Stone Weight: 3.50 CT Approx.

Production Time (Handcrafted to Order)

Standard: 2–3 weeks
If quality refinements are required, please allow an additional 1–2 weeks.
Rush production (optional):1–2 weeks for eligible items. Read full details: Production Timeline Policy

Shipping Time (After Dispatch)

Standard Shipping: 17–19 days
Express Shipping: 7–10 days
These timelines apply to USA, UK & Canada. For other countries, delivery times may vary — write to us for your exact estimate. Read full details: Shipping & Delivery Policy

Shipping Options

Standard
Express
Express + Signature-on-Delivery (recommended for extra security)
Carrier is selected by country and may change based on service reliability (India Post, USPS, UPS, FedEx, ARAMEX, DHL, etc.). More info: Shipping & Delivery Policy

Rush Order Eligibility

Usually available for most Moissanite pieces and select Lab Diamonds that are regular cuts/shapes or readily sourced fancy-color diamonds.
Not available for Custom-Cut Lab Diamonds, including our specially optimized Old Cut Diamonds (Old Mine Cut / Old European Cut) and optimized Brilliant cuts made for best scintillation, light performance, and minimal bow-tie. These custom cuts typically take 3–4 weeks.
Please contact us before purchasing a Rush upgrade to confirm eligibility and timeline. Read full details: Rush Order Policy