Cobalt Blue Spinel Ring Gem 3.07 Carat Mahenge Tanzania Oval Loose Gemstone

Fantastic 3.07 carat Tanzanite cushion loose gemstone, offered unmounted to a fine gem lover. Dimensions: 9.6 x 7.6 x 5.5 mm. Returns are accepted and paid by us within 7 days of del...

Very special 2.96 carat Red Spinel pear shape gem, from Mahenge Tanzania, offered loose to a world-class gemstone lover. Returns are accepted and paid by us within 7 days of delivery...

One-of-a-kind 2.98 carat Pink Spinel fancy cut gem, from Mahenge Tanzania, offered loose to a world-class gemstone lover. Dimensions: 12.4 x 8.2 mm. Returns are accepted and paid by ...

Rare and exceptional, 6 carat Burma Jade oval cabochon, offered unmounted to the world's most sophisticated gem connoisseurs. This superior, vibrant "emerald-green" Imperial Jade, di...

Vibrant 4.63 carat "loupe clean" cushion Purple Spinel gem, offered unmounted to a fine gemstone collector. This gem is superior in color, cut and clarity. Returns are accepted and p...

Exquisite 6.04 carat "loupe clean" Pink Spinel gem, offered loose to a fine gemstone collector. This gem is superior in color, cut and clarity. The G.I.A. gem report is available upo...

Some spinel colors are more rare and valuable than others. This heavenly 4.07-carat untreated Mahenge Red Spinel presented here is a great example ...

Our handcrafted and elegant jewelry is made to last. This spinel ring for women has a brilliant design and is made in 18K white gold, with 0.85 carats diamonds! The birthstone ring b...

3.07 Total Carat Blue Sapphire Diamond Engagement Ring Looking for a fabulous sapphire diamond ring? This ring is for you. Sapphire diamond ring is known for it's symbolic meaning a...

Mahenge and Morogoro in Tanzania are two mining areas that produce nice vivid pink Spinels. The mines are not producing the same amount of rough as a few years ago and with that the ...

A stunning, fine and impressive antique and vintage 3.07 carat diamond and platinum dress / cocktail ring; part of our diverse diamond jewelry and estate jewelry collections. Video: A video of this fine piece is available upon request. This magnificent, fine and impressive diamond cluster ring has been crafted in platinum. The vintage pierced decorated setting (circa 1950) is ornamented with a feature antique 1.52 old mine cut diamond (circa 1860) bezel set in subtle relief to the center of the design. The central diamond is encircled by a further ten antique Old European cut diamonds (circa 1900), all held within millegrain decorated bezel settings. Incorporating antique diamonds and precious gemstones into jewelry was common practice in the 1940's and 1950's. The elevated tapering pierced decorated ring shoulders are accented with a subtle cuff design at the junction with the plain ring shank. This stunning diamond cocktail ring has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. The ring is supplied with an independent diamond grading certificate for the feature diamond in addition to an independent diamond grading report card for the supporting stones. Condition This magnificent platinum and diamond cluster ring...

Deep blue Sapphire and diamond halo engagement ring. GIA certified natural no heat dark blue Sapphire 3.07ct in a 14k white gold setting. 1 oval deep blue Sapphire, approx. total we...