Marcus & Co. Edwardian Black Opal & Diamond Necklace
Era: Late Edwardian
Maker: Marcus & Co. (signed on back of center element)
Metal: Platinum
Stones:
- Australian Black Opal (AGL #1124636): 15.32 mm x 12.60 mm x 6.25 mm
- Diamond Total Carat Weight: 2.00 Carats
- Cultured Pearl Drop Measurements: 5.00 mm to 5.50 mm
Measurements:
- Central Element Length: 22.6 mm
- Central Element Width: 23.4 mm
- Length: 14 Inches
Weight: 15.60 grams
Measurements
A bangle must slide over your hand, so knuckle circumference — not wrist — determines your size. Measure with your thumb tucked in, fingers together.
Fold your hand — bring your thumb across your palm toward your little finger, as if you were sliding on a bangle.
Wrap a flexible tape measure (or string) around the widest part of your knuckles, including the thumb knuckle. Pull snug but not tight.
Note where it overlaps. This number in inches or mm is your hand circumference. If using string, lay flat on a ruler to measure.
Measured around your knuckles with thumb tucked in.
| Inner Ø (mm) | Fits hand circ. | Snug at | Loose at |
|---|
* Inner diameter measured straight across the inside of the bangle.
Ring size is measured by the inner circumference of the ring, which must match your finger. Measure in the evening when fingers are slightly larger.
Cut a thin strip of paper or use a non-stretchy string. Wrap it snugly around the base of the finger you intend to wear the ring on.
Mark where the paper overlaps itself. Measure the length from the end to your mark in millimetres. This is your finger circumference.
Enter that measurement below. If you're between sizes, we recommend sizing up — especially for wider bands, which fit more snugly.
| US Size | Inner Ø (mm) | Circumference (mm) |
|---|
* If between sizes, choose the larger. Wide bands typically need one size up.
Necklace length determines where a piece sits on your neckline. The right length depends on your height, neckline, and the style of the piece.
Petite frames tend to suit shorter lengths (14–18"). Longer chains can visually elongate a shorter torso beyond the intended effect.
Taller or fuller figures are flattered by longer lengths (20–24") which create a natural vertical line.
Layering: combine a 16" and a 20" for an effortless stacked look. Keep at least a 2" difference between lengths.
Statement pendants work best at 18–20" where the pendant sits in clear view against the chest.
Unlike bangles, chain and link bracelets are sized by length and fasten with a clasp. The right length depends on your wrist size and preferred fit.
Wrap a flexible tape measure (or string) around your wrist just above the wrist bone — where you would naturally wear a bracelet.
Note the measurement in inches. This is your wrist circumference. If using string, lay flat on a ruler.
Add wearing ease to find your bracelet length — see options below. Most women's bracelets are 7–7.5" and men's are 8–8.5".
| Wrist Circ. | Snug (+½") | Standard (+¾") | Loose (+1") |
|---|
* All lengths in inches. Wider cuff-style bracelets may need ¼–½" additional ease.
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