Mozambique Ruby 3.15 ct Flat Cut – Natural Loose Stone for Signet or Engagement Ring

Looking for a ruby that sits close to the finger? Most rubies over 3 carats are cut deep, which means a tall setting that catches on sleeves and gloves. This one is different: a natural Mozambique ruby cut flat at just 2.6 mm deep, with a wide 10.6 × 9.5 mm face. That gives you a big, bold red face-up and a ring that sits low and comfortable. It's made for an engagement ring she'll wear every day, or a men's signet or bezel ring with real presence.

• Natural. Bold. Low profile. Made to be remembered.
• Natural Mozambique ruby, 3.15 ct, cushion low-profile flat cut
• Wide 10.6 × 9.5 mm face, just 2.6 mm deep
• Vivid crimson red with soft pink undertones
• Standard heat only, the traditional and widely accepted treatment for rubies
• A loose natural ruby from Mozambique, sold unmounted. There is only one of this stone.

Why a flat cut

A low-profile ruby gives you more face-up size for its weight and a setting that sits close to the hand. It's:

• Comfortable for everyday wear, with nothing to snag
• Ideal for bezel, flush and signet settings
• Large and vivid face-up at over 10 mm across

For the engagement ring buyer

• Over 10 mm face-up, a statement centre stone
• Low setting that's practical for work, gloves and daily life
• Mohs 9 hardness, made for everyday wear
• Beautiful in a bezel solitaire, a diamond halo or a three-stone ring

A gemstone for him: the men's signet ring

At Roho Jewels, we believe men deserve beautiful gemstones too. A natural Mozambique ruby set into a signet ring is a bold, personal alternative to a plain metal signet: one-of-a-kind, full of character, and a ring he'll wear for decades and one day pass down.

• Signet face: at 10.6 × 9.5 mm, this stone suits a signet face of about 14–17 mm (most men choose a face of about 15–18 mm), great on the ring or middle finger
• Setting: flush (gypsy), bezel or half-bezel keeps it low and smooth, with no claws to catch on sleeves or gloves
• Depth: the stone is 2.6 mm deep, so ask your jeweler for a signet head at least 3.6 mm deep
• Metal: rich in yellow gold, sharp in white gold or platinum, rugged in oxidised sterling silver
• Wear: Mohs 9, second only to diamond, so it is tough enough for a ring worn every day
• Perfect for: husbands, fathers, grooms, graduates, milestone birthdays, or a signet he buys for himself

Why Mozambique

Mozambique is one of the most important ruby sources in the world today, known for bright, clean red stones.

Birthstone meaning

Ruby is the birthstone for July and the traditional gemstone for 15th and 40th wedding anniversaries, long a symbol of passion, courage and love.

Perfect for

Engagement Rings · Men's Signet Rings · Bezel Rings · Proposals · Christmas · July Birthdays · 15th & 40th Anniversaries · Jewelry Designers

About Roho Jewels

At Roho Jewels, everything begins with the stone. Every natural gemstone we offer is hand-selected in our Toronto studio. These are real, earth-mined sapphires, rubies, emeralds and pearls, never synthetics, and every stone is described honestly so you know exactly what you're buying. Our goal is simple: real gemstones, real craftsmanship and real value, without traditional retail prices.