Blue Sapphire Pair 5.93 ct Oval Cabochons – Natural Madagascar Loose Stones
Free insured shipping from Toronto · 30-day returns & exchanges · Genuine for life or your money back · Free gift wrap
- Free insured shipping, tracked. Signature on delivery for higher-value pieces. Outside Canada, import duties or taxes may apply on delivery and are paid by the buyer. Shipping & duties
- 30-day returns and exchanges. Holiday orders (Nov 1 to Dec 31) until January 31.
- Guaranteed genuine for life, or your money back.
- Free gift wrap with a handwritten card.
Questions? Ask Leander Usually answered within a few hours, and he can send you a daylight video of this piece.
Ask a question →Disclosure
- Stone
- Blue sapphire
- Treatment
- Heated
- Lab report
- No lab report (certificate not included)
- Origin
- Madagascar
- Ships
- Ships next business day
- Birthstone
- September
Product details
Style ID: RJLG-000004
Looking for sapphires with depth rather than sparkle? These are two natural Madagascar sapphires cut as high dome oval cabochons, closely matched at 2.98 ct and 2.96 ct. A cabochon doesn't chase brilliance. Its smooth dome draws light inside the stone, so the deep ocean blue seems to glow from within. They're made for a pair of bezel earrings, twin-stone rings, matching pendants or his-and-hers designs.
- Natural. Deep ocean blue. Matched. Made to be remembered.
- Matched pair of natural Madagascar blue sapphires, 5.93 ct total
- High dome oval cabochons, about 2.98 ct and 2.96 ct each (rounded)
- Deep ocean blue with a soft internal glow
- Heat only, the standard accepted treatment for sapphire
- A matched pair of loose natural blue sapphire cabochons from Madagascar, sold unmounted. There is only one of this pair.
Why a cabochon
The polished dome works like a lens, pulling light into the body of the stone and holding it there. The colour shifts between deep navy and brighter blue as the stones tilt, and looks even and rich in soft light.
The silk
The fine silk you can see in these stones is made of tiny natural needles that formed as the crystals grew. In a cabochon, a little silk is what gives the soft, velvety glow. These stones have enough to glow while staying clear enough for the blue to read rich rather than opaque.
Setting them
- About 8.5 × 6.8 mm each, close to standard 8.5 × 6.5 mm and 9 × 7 mm oval cabochon bezels
- A bezel wall of about 3.5–4 mm suits the 5 mm dome
- The smooth dome is ideal for bezel settings, with no facet edges to protect
- Deep blue looks classic in yellow gold and striking in white gold
Birthstone meaning
Sapphire is the birthstone for September and the traditional gemstone for 5th and 45th wedding anniversaries, long a symbol of loyalty, wisdom and sincerity.
Perfect for
A pair of bezel earrings for everyday wear, twin-stone rings, matching pendants, or a jewelry designer's matched set. And a natural choice if September is your birth month or you're marking a 5th or 45th anniversary.
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 and emeralds, and genuine 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.
Tech specs
| Gemstone | Natural blue sapphire (corundum), matched pair |
|---|---|
| Origin | Madagascar |
| Total carat weight | 5.93 ct (weighed as a pair; the individual weights below are rounded) |
| Stone 1 | 2.98 ct, 8.5 × 6.8 × 5.0 mm |
| Stone 2 | 2.96 ct, 8.7 × 6.7 × 4.9 mm |
| Shape / Cut | Oval cabochon, high dome |
| Colour | Deep ocean blue with soft internal glow |
| Clarity | Semi-transparent, with natural silk inclusions |
| Treatment | Heat only, the standard accepted treatment for sapphire |
| Hardness | Mohs 9, second only to diamond |
| Certificate | Not included |
| Type | Loose natural gemstones, sold unmounted |
What you will receive
- Both exact stones shown in the photos and video
- A card noting the weight, origin, measurements and treatment of each stone
- Secure gemstone packaging; every order arrives beautifully wrapped, with a handwritten card



