Certified Diamonds & Gemstones

A stunning collection of gemstones, including Sapphires, Diamonds, Tsavorites and more

227 items 227 items
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Certified Diamonds & Gemstones

A stunning collection of gemstones, including Sapphires, Diamonds, Tsavorites and more

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  • Ended 11 Feb 2020 14:00 GMT

Auction details

Currency: GBP
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GIA Certified 2.05 ct. Blue Sapphire - BURMA, MYANMAR GIA Certified 2.05 ct Blue Sapphire - BURMA, MYANMAR.Ct Weight - 2.05.Cut - Oval Brilliant S...

IGI Sealed 0.18 ct. Diamond D-Box - X - Y UNTREATED IGI Sealed 0.18 ct "Diamond D-Box" - Round Brilliant Natural Diamonds - X - Y / I1 - I2 UNTREA...

GIA Cert. 4.11 ct. Tsavorite Garnet -KENYA, EAST AFRICA GIA Certified 4.11 ct Tsavorite (Grossular-Garnet) - KENYA, EAST-AFRICA.Cut - Oval Brillia...

GIA Cert. 1.19ct. Deep Red Ruby - BURMA, MYANMAR GIA Certified 1.19 ct Deep Red Ruby - BURMA, MYANMAR.Color - Deep Red. Clarity - VS. Cut - Oval B...

GIA Certified 0.16 ct. Diamond - D / VVS2 - UNTREATED GIA Certified 0.16 ct Diamond - D / VVS2 - UNTREATED.100% Natural.Ct Weight - 0.16 ct.Cut - ...

LOTUS Certified 8.18 ct. Red Spinel - BURMA, MYANMAR LOTUS Certified 8.18 ct Red Spinel - BURMA, MYANMAR.Color - Red. Saturation - Medium.Tone - D...

IGI Cert. 1.20 ct. Violet Blue Sapphire - MADAGASCAR IGI Certified 1.20 ct Violet Blue Sapphire - MADAGASCAR.Ct Weight - 1.20 ct.Color - Violet Bl...

IGI Sealed 0.09 ct. Light Brown Diamond - UNTREATED IGI Sealed 0.09 ct Round Brilliant Natural Diamond - Light Brown / SI UNTREATED.100% Natural.S...

IGI Certified 7.38ct. Green Tourmaline - MOZAMBIQUE IGI Certified 7.38 ct Green Tourmaline - MOZAMBIQUE.Cut - Heart Mixed Cut. Color - Green.Clari...

IGI Certified 1.49 ct. Royal Blue Sapphire - KASHMIR IGI Certified 1.49 ct Royal Blue Sapphire - KASHMIR.Ct Weight - 1.49 ct.Color - Royal Blue.Cu...

IGI Certified 1.26ct. Color Changing Alexandrite BRAZIL IGI Certified 1.26 ct Color Changing Alexandrite - BRAZIL.Cut - Triangle Mixed Cut. Color ...

IGI Cert. 1.30 ct. Diamond - M - I 2 - UNTREATED AFRICA IGI Certified 1.30 ct Diamond - M - I 2 - UNTREATED - AFRICA.100% Natural.Shape - Pear Mod...

GRS Cert. 2.01ct. Untreated VIVID RED Ruby - MOZAMBIQUE GRS Certified 2.01 ct VIVID RED Ruby Untreated - MOZAMBIQUE.Cut - Oval Brilliant Step Cut....

GIA Cert. 1.03 ct. Untreated Blue Sapphire - SRI LANKA GIA Certified 1.03 ct Untreated Violetish Blue Sapphire - SRI LANKA, CEYLON.Excellent Cut a...

IGI Certified Diamonds Pair Pink Brown - I 2 UNTREATED IGI Certified 0.08 ct Diamonds Pair Pink Brown - I 2 UNTREATED.Shape - Round Brilliant.Colo...

IGI Certified 9.31 ct. Emerald - COLOMBIA IGI Certified 9.31 ct Emerald - COLOMBIA.Cut - Emerald Cut. Color - Green.Clarity - SI. Ct weight - 9.31...

GIA Certified 3.14 ct. Blue Sapphire - SRI LANKA GIA Certified 3.14 ct Blue Sapphire - SRI LANKA.Ct Weight - 3.14 ct.Cut - Cushion Modified Brilli...

IGI Certified 0.86 ct. Tsavorite Garnet Untreated KENYA IGI Certified 0.86 ct Tsavorite (Grossularite - Garnet) Untreated KENYA.Cut - Round Mixed ...

IGI Certified 1.02 ct. Emerald Shape Diamond UNTREATED IGI Certified 1.02 ct Natural Emerald Shape Diamond - Q-R / I1 UNTREATED.100% Natural.Shape...

GIA Certified 1.05 ct. Untreated Ruby - BURMA, Myanmar GIA Certified 1.05 ct Untreated Ruby - Burma ( Myanmar ). Color - Red. Clarity - VS. Cut ...

Lotus 11.54 ct. Cornflower Blue Sapphire - Sri Lanka    Cut - Antique Cushion Modified Brilliant Step Cut Colour - Cornflower Blue Saturation - Ri...

IGI Certified Sealed 3.37 Ct. Diamond "D Box" UNTREATED IGI Certified 3.37 ct "Diamond D-Box" - Round Brilliant Natural Diamonds - G-H-I / I2 - I3...

LOTUS - 5.09 ct. Purplish Pink Spinel - BURMA, MYANMAR LOTUS Certified 5.09 ct Purplish Pink Spinel - BURMA, MYANMAR (MOGOK). Color - Purplish P...

GIA Cert. 8.80 ct. Neon Greenish Blue "PARAIBA " BRAZIL GIA Certified 8.80 ct Neon Greenish Blue Paraiba Tourmaline BRAZIL.Top Paraiba Hue. VVS to...

IGI Cert. 2.21 ct. Yellowish Brown Diamond - UNTREATED IGI Certified 2.21 ct Cushion Modified Brilliant Natural Fancy Yellowish Brown Diamond - I1...

GIA Certified 2.02 ct. Blue Sapphire - SRI LANKA GIA Certified 2.02 ct Dark Blue Sapphire - SRI LANKA.Ct Weight - 2.02 ct.Color - Dark Blue.Cut - ...

1.99 ct. Red Zircon - TANZANIA 1.99 ct Red Zircon - TANZANIA.Color - Red. Clarity - VS. Cut - Round.Ct Weight - 1.99 ct.Dimensions - 6.50 - 6.50 x...

IGI Certified 1.08 ct. Untreated Ruby - AFRICA IGI Certified 1.08 ct Untreated and Unheated Ruby - AFRICA.Color - Purplish Red. Clarity - VS. Cut ...

GIA Certified 2.17 ct. Untreated Blue Sapphire - BURMA GIA Certified 2.17 ct Untreated Blue Sapphire - BURMA, MYANMAR.Ct Weight - 2.17 ct.Cut - Cu...

Tokyo Gem Lab Cert. Sealed 1.69 ct. Brown Diamond Tokyo Gem Laboratory Certified Sealed 1.69 ct Brown Diamond - AUSTRALIA.100% Natural.Shape - Pea...

GFCO (Swiss) Cert. 44.80 ct. Swiss Blue Topaz - BRAZIL GFCO (Swiss) Certified 44.80 ct Swiss Blue Topaz - BRAZIL.Color - Swiss Blue.Cut - Pentagon...

GIA Cert. 3.01 ct. Untreated Tsavorite Garnet - KENYA GIA Certified 3.01 ct Tsavorite (Grossularite - Garnet) -Untreated - KENYA, EAST AFRICA.Cut ...

GRS Certified 0.61 ct. Untreated Padparadscha Sapphire GRS Certified 0.61 ct Untreated Padparadscha Sapphire - MADAGASCAR.Cut - Rectangular Step c...

14.32 ct. Blue Aquamarine - BRAZIL 14.32 ct Blue Aquamarine - BRAZIL.Color - Blue.Clarity - I. Cut - Oval.Ct Weight - 14.32 ct.Dimensions - 18.40 ...

IGI Certified Sealed 3.32 ct. Diamond "D Box" UNTREATED IGI Sealed 3.32 ct Diamond D-Box - Light Brown - Brown / I2-I3 UNTREATED.100% Natural.Cara...

IGI Certified 2.15 ct. Untreated Ruby - PAKISTAN IGI Certified 2.15 ct Untreated Ruby - PAKISTAN.Cut - Rectangular Cushion Mixed cut.Color - Purpl...

IGI Certified 2.64 ct. Blue Sapphire SRI LANKA, CEYLON IGI Certified 2.64 ct Blue Sapphire - SRI LANKA, CEYLON.Ct Weight - 2.64 ct.Cut - Oval Mixe...

IGI Cert. 0.59 ct. Diamond Orangy Brown - I 2 UNTREATED IGI Certified 0.59 ct Diamond - Fancy Orangy Brown - I 2 UNTREATED.100% Natural.Shape - Cu...

GIA Cert. 2.13 ct. Neon Bluish Green " PARAIBA " BRAZIL GIA Certified 2.13 ct Neon Bluish Green " PARAIBA " Tourmaline - BRAZIL.Cut - Oval Brillia...

IGI Certified 1.71 ct. Blue Sapphire - SRI LANKA IGI Certified 1.71 ct Blue Sapphire - SRI LANKA.Ct Weight - 1.71 ct.Cut - Oval Mixed cut.Color - ...

GIA Cert. 6.49ct. Untreated Red Spinel - BURMA, MYANMAR GIA Certified 6.49 ct Untreated Red Spinel - BURMA, MYANMAR.Color - Red. Cut - Cushion Bri...

2.24 ct. Pink Zircon - TANZANIA 2.24 ct Pink Zircon - TANZANIA.Color - Pink.Clarity - VS. Cut - Fancy.Ct Weight - 2.24 ct.Dimensions - 8.20 x 6.90...

IGI Cert. Light Pinkish Brown Diamonds Pair UNTREATED IGI Certified 0.10 ct Diamonds Pair Very Light Pinkish Brown - I2 - I3 - UNTREATED.100% Natu...

GIA Certified 2.11 ct. ROYAL BLUE Sapphire - BURMA GIA Certified 2.11 ct ROYAL BLUE Sapphire - BURMA, MYANMAR.Ct Weight - 2.11 ct.Color - Royal Bl...

GFCO (SWISS) Cert. 4.78 ct. Purple Amethyst - BRAZIL GFCO (SWISS) Certified 4.78 ct Purple Amethyst - BRAZIL.Cut - Fancy Round Brilliant Cut. Colo...

IGI Certified 1.38 ct. Untreated Ruby - BURMA, MYANMAR IGI Certified 1.38 ct Untreated Ruby - BURMA, MYANMAR.Cut - Heart Mixed cut.Color - Purplis...

GIA Certified 1.28 ct. Untreated Blue Sapphire - BURMA GIA Certified 1.28 ct Untreated Blue Sapphire - BURMA.Ct Weight - 1.28 ct.Color - Blue.Cut ...

IGI Certified 1.14 ct. Fancy Brown Diamond UNTREATED IGI Certified 1.14 ct Fancy Brown Diamond UNTREATED.100% Natural.Ct Weight - 1.14 ct.Shape - ...

IGI Cert. 117.05 ct. Kunzite Purplish Pink AFGHANISTAN IGI Certified 117.05 ct - Large Kunzite - Purplish Pink AFGHANISTAN.Large Kunzite - Excelle...

AIGS Cert. 15.22 ct. NEON GREEN PARAIBA Tourmaline AIGS Certified 15.22 ct NEON GREEN Paraiba Tourmaline - MOZAMBIQUE.Ct Weight - 15.22 ct.Color -...

IGI Certified 0.06 ct. Yellow Diamond - AUSTRALIA IGI Certified 0.06 ct Yellow Diamond - AUSTRALIA.100% Natural.Shape - Rectangular Princess cut.C...

GIA Certified 2.01 ct. Blue Sapphire - BURMA, MYANMAR GIA Certified 2.01 ct Blue Sapphire - BURMA, MYANMAR.Excellent Cut and color.Color - Dark Bl...

GIA Cert. 11.21 ct. Tsavorite Garnet Untreated - KENYA GIA Certified 11.21 ct Tsavorite (Grossularite - Garnet) - Untreated - KENYA, EAST AFRICA.C...

IGI Certified 2.13 ct. Untreated Ruby - BURMA, MYANMAR IGI Certified 2.13 ct Untreated Ruby - BURMA, MYANMAR.Ct Weight - 2.13 ct..Color - Purplish...

LOTUS Cert. 1.01 ct. Untreated PINK Sapphire MOZAMBIQUE LOTUS Certified 1.01 ct Untreated Pink Sapphire - MOZAMBIQUE.Lotus type "Hot Pink". The el...

IGI Sealed 0.26 ct. "Diamond D-Box" - I-J - UNTREATED IGI Sealed 0.26 ct "Diamond D-Box" - Round Brilliant Natural Diamonds - I - J / I1 - I2 UNTR...

GIA Certified 48.43 ct. Green Fluorite - NAMIBIA GIA Certified 48.43 ct Green Fluorite - NAMIBIA.Color - Green.Cut - Pear Novelty cut.Ct weight - ...

GRS Cert. 6.71 ct. Color Change Alexandrite - BRAZIL GRS certified 6.71 ct Color Change Alexandrite - BRAZIL.Exceptional and rare . Emerald by day...

GIA Certified 3.66 ct. Untreated Blue Sapphire - BURMA GIA Certified 3.66 ct Untreated Blue Sapphire - BURMA, MYANMAR.Ct Weight - 3.66 ct.Color - ...

IGI Cert. 30.54 ct. Bi-Color Zoisite/Tanzanite TANZANIA IGI Certified 30.54 ct Bi-Color Carving Zoisite/Tanzanite - TANZANIA.Natural Zoisite Carvi...

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