Categorie

Precious stones

388 risultati

live 11 novembre | 06:30 PM

Deep blue oval-cut sapphire weighing approximately 1.51 carats. Unheated. Origin: Burma (Myanmar). An ALGT certificate dated June 2026 is included.

Stima

700 - 1.000 €

live 11 novembre | 11:00 AM

A 9.020ct Round Brilliant Cut Lab-Grown Diamond. Colour E, Clarity VS2. IGI certified. Cert no: LG801654234. Measurements: 13.43 X 13.47 X 7.99mm.

Stima

1600 - 2.200 €

live 11 novembre | 11:00 AM

A 3.03Ct Cushion Cut Lab-Grown Diamond. Colour D, Clarity VS2. IGI certified. Cert no: LG803678061. Measurements: 9.84 x 7.36 x 5.15 mm.

Stima

530 - 600 €

live 11 novembre | 03:00 PM

AN UNMOUNTED UNHEATED 15.03 CARAT SAPPHIRE cushion cut, 15.03 carats. Accompanied by a gemmological report from GIA stating the sapphire shows no indications of heat treatment.

Stima

3500 - 6.000 €

live 11 novembre | 11:00 AM

A 4.16Ct Princess Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG807626325. Measurements: 8.76 x 8.66 x 6.30 mm.

Stima

710 - 840 €

live 11 novembre | 11:00 AM

A 3.02Ct Princess Cut Lab-Grown Diamond. Colour D, Clarity VS2. IGI certified. Cert no: LG788647452. Measurements: 7.99 x 7.79 x 5.33 mm.

Stima

530 - 600 €

live 11 novembre | 11:00 AM

A 3.54Ct Pear Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG804627618. Measurements: 14.04 x 8.38 x 5.19 mm.

Stima

650 - 720 €

live 11 novembre | 11:00 AM

A 5.040ct Pear Cut Lab-Grown Diamond. Colour D, Clarity VS2. IGI certified. Cert no: LG772627047. Measurements: 15.47 X 9.50 X 5.80mm.

Stima

1000 - 1.400 €

live 11 novembre | 11:00 AM

A 4.65Ct Oval Cut Lab-Grown Diamond. Colour D, Clarity VS2. IGI certified. Cert no: LG823697429. Measurements: 13.34 x 9.36 x 5.79 mm.

Stima

770 - 900 €

live 11 novembre | 11:00 AM

A 4.01Ct Round Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG792646310. Measurements: 10.29 x 10.34 x 6.07 mm.

Stima

710 - 780 €

live 11 novembre | 11:00 AM

A 3.15Ct Princess Cut Lab-Grown Diamond. Colour D, Clarity VVS2. IGI certified. Cert no: LG805681762. Measurements: 7.99 x 7.85 x 5.69 mm.

Stima

590 - 660 €

live 11 novembre | 11:00 AM

A 4.10Ct Heart Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG763603928. Measurements: 9.87 x 11.05 x 6.37 mm.

Stima

830 - 900 €

live 11 novembre | 11:00 AM

A 3.01Ct Emerald Cut Lab-Grown Diamond. Colour D, Clarity VVS2. IGI certified. Cert no: LG828620198. Measurements: 10.30 x 6.72 x 4.36 mm.

Stima

590 - 660 €

live 11 novembre | 11:00 AM

A 4.03Ct Emerald Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG782625177. Measurements: 10.25 x 7.28 x 5.03 mm.

Stima

650 - 780 €

live 11 novembre | 11:00 AM

A 3.5Ct Oval Cut Lab-Grown Diamond. Colour D, Clarity VS2. IGI certified. Cert no: LG797678728. Measurements: 12.41 x 8.60 x 5.19 mm.

Stima

710 - 780 €

live 11 novembre | 11:00 AM

A 4ct Asscher Cut Lab-Grown Diamond. Colour D, Clarity VS1. IGI certified. Cert no: LG723573216. Measurements: 8.47 x 8.41 x 6.11 mm.

Stima

650 - 780 €

live 11 novembre | 03:00 PM

A 2.09 CARAT UNMOUNTED YELLOW SAPPHIRE oval cut, 2.09 carats. Accompanied by a gemmological report stating the sapphire shows no indications of heat treatment.

Stima

110 - 360 €

live 11 novembre | 03:00 PM

A 1.42 CARAT UNMOUNTED YELLOW SAPPHIRE pear cut, 1.42 carats. Accompanied by a gemmological report stating the sapphire shows no indications of heat treatment.

Stima

110 - 360 €

live 11 novembre | 03:00 PM

AN UNMOUNTED 12.41 CARAT BURMA NO HEAT SAPPHIRE cushion cut, 12.41 carats. Accompanied by a gemmological report stating the sapphire is Burmese origin with no indications of heat treatment.

Stima

4700 - 7.200 €

live 12 novembre | 01:30 PM

0.6-carat brilliant-cut diamond on paper

Stima

200 - 300 €

live 12 novembre | 04:30 PM

Oval cut ruby of 13 x 9 mm.

Stima

1280 - 3.900 €

live 12 novembre | 02:00 PM

Diamond on paper, approx. 2/100th of a carat.

Stima

80 - 100 €

live 14 novembre | 04:00 AM

Extremely Rare Iron “Gibeon” Meteorite

Stima

500.000 - 600.000 €

asta a tempo Fino al 12 novembre | 08:41 AM

Blue sapphire on paper, mixed oval cut, grading approx. 12.3 cts (D. 1.6 x 1 cm), Gross weight: approx. 2.5 g

Base d'asta

370 €

live 12 novembre | 04:30 PM

Trillion cut pink sapphire of 8 mm.

Stima

460 - 950 €

live 13 novembre | 01:00 PM

Unheated oval sapphire, 6.22 carats, presented on its own.

Stima

3200 - 5.500 €

live 14 novembre | 04:00 AM

7 Billion Year 0ld Murchison Meteorite

Stima

350.000 - 450.000 €

asta a tempo Fino al 12 novembre | 09:02 AM

Faceted ruby on paper, mixed cushion cut, calibrating approx. 8.08 cts (D. 1.1 x 0.95 cm), Gross weight: approx. 1.6 g (inclusions and chips).

Base d'asta

250 €

asta a tempo Fino al 12 novembre | 08:44 AM

Faceted ruby on paper, oval cut, calibrating approx. 5.93 cts (D. 1.05 x 0.95 cm), Gross weight: approx. 1.2 g (inclusions and chips).

Asta in corso 179 €

asta a tempo Fino al 12 novembre | 09:16 AM

Faceted yellow sapphire on paper, oval cut, grading approx. 5.42 cts (D. 1.1 x 0.9 cm), Gross weight: approx. 1.1 g (inclusions and chips).

Base d'asta

165 €

asta a tempo Fino al 12 novembre | 08:52 AM

Faceted ruby on paper, mixed cushion cut, calibrating approx. 7.14 cts (D. 1.1 x 0.9 cm), Gross weight: approx. 1.3 g (inclusions and chips).

Base d'asta

219 €

asta a tempo Fino al 12 novembre | 08:52 AM

Faceted green sapphire on paper, round cut, grading approx. 8.43 cts (D. 1.1 cm), Gross weight: approx. 1.7 g (inclusions and chips).

Base d'asta

255 €

asta a tempo Fino al 12 novembre | 08:56 AM

Faceted green sapphire on paper, mixed oval size, grading approx. 5.30 cts (D. 0.95 x 0.85 cm), Gross weight: approx. 1 g (inclusions and chips).

Base d'asta

160 €

asta a tempo Fino al 12 novembre | 09:04 AM

Faceted ruby on paper, oval calibrating approx. 3.76 cts (D. 1.15 x 0.75 cm), Gross weight: approx. 0.7 g (inclusions and chips).

Base d'asta

115 €

asta a tempo Fino al 12 novembre | 09:06 AM

Faceted yellow sapphire on paper, oval cut, grading approx. 8.28 cts (D. 1.3 x 1.1 cm), Gross weight: approx. 1.7 g (inclusions and chips).

Base d'asta

250 €

live 14 novembre | 04:00 AM

A Rare Aletai Meteorite Cube

Stima

15.000 - 20.000 €

live 14 novembre | 04:00 AM

Diogenite Meteorite (NWA) also called; “The Philosopher's Stone”

Stima

100.000 - 140.000 €

live 14 novembre | 04:00 AM

Slice of Brahin Pallasite Meteorite, (PMG)

Stima

25.000 - 35.000 €

live 14 novembre | 04:00 AM

Aletai Meteorite Slice

Stima

15.000 - 25.000 €

live 14 novembre | 04:00 AM

Fine specimen of an Iron Meteorite

Stima

500 - 700 €

live 13 novembre | 01:00 PM

Diamond on paper, brilliant cut, quality L/I2, for a total of 0.49 ct under IGI seal, certificate number: 3***07.

Stima

540 - 1.100 €

live 13 novembre | 01:00 PM

A 0.41-carat natural diamond with VVS2 clarity and E color.

Stima

430 - 770 €

live 14 novembre | 04:00 AM

Campo Del Cielo Meteorite (El Diablo)

Stima

80.000 - 120.000 €

live 14 novembre | 04:00 AM

NWA Stone ‘Chondrite’ Meteorite

Stima

25.000 - 35.000 €

live 14 novembre | 04:00 AM

Seymchan Pallasite Meteorite Full Slice, PMG

Stima

15.000 - 20.000 €

live 17 novembre | 05:00 PM

Assorted group of 40 green and yellow-hued gemstones. Of varying sizes, forms, and cuts. Tested at random; includes jade, simulation gemstones, smokey quartz, citrine, and prasiolite. (Shipping dimensions) Height: 1 1/4 in x width: 15 in x depth: 8 1/2 in. Gross approximate carrot total weight: 150.0.

Stima

170 - 360 €

live 14 novembre | 02:00 PM

Sapphire on paper.

Stima

80 - 120 €

asta a tempo Fino al 15 novembre | 08:03 PM

DIAMOND: Round, lab-grown, 6.02 carats. This synthetic diamond has exactly the same physical, chemical, and visual properties as a natural diamond. A gemologist would be unable to distinguish it from a natural diamond with the naked eye or under a loupe. The guarantee certificate is an integral part of the description. We can ship your orders for the following flat rates: €40 (France), €50 (Europe)

Base d'asta

1.800 €

asta a tempo Fino al 15 novembre | 08:04 PM

8.88-carat pear-shaped lab-grown diamond; this synthetic diamond has exactly the same physical, chemical, and visual properties as a natural diamond. A gemologist would be unable to distinguish it from a natural diamond with the naked eye or under a loupe. The warranty certificate is an integral part of the description. We can ship your orders for the following flat rates: €40 (France), €50 (Europe)

Base d'asta

2.700 €

asta a tempo Fino al 15 novembre | 02:42 PM

Sapphire, 5.5 carats, treated. Provenance: Madagascar. With certificate.

Asta in corso 36 €

live 17 novembre | 02:00 PM

Round

Stima

900 - 1.000 €

asta a tempo Fino al 15 novembre | 08:03 PM

7.55-carat emerald-cut lab-grown diamond; this synthetic diamond has exactly the same physical, chemical, and visual properties as a natural diamond. A gemologist would be unable to distinguish it from a natural diamond with the naked eye or under a loupe. The warranty certificate is an integral part of the description. We can ship your orders for the following flat rates: €40 (France), €50 (Europe)

Base d'asta

2.200 €

asta a tempo Fino al 15 novembre | 08:02 PM

Oval-cut, 5-carat lab-grown diamond; this synthetic diamond has exactly the same physical, chemical, and visual properties as a natural diamond. A gemologist would be unable to distinguish it from a natural diamond with the naked eye or under a magnifying glass. The warranty certificate is an integral part of the description. We can ship your orders for the following flat rates: €40 (France), €50 (Europe)

Base d'asta

1.450 €

14 novembre | 11:00 AM

A Believed to be heart-shaped diamond, with HRD Identification Report numbered 20040052616 and noting the weight as 1.00 carat, Sealed & Unverified.

Stima

110 €

asta a tempo Fino al 15 novembre | 02:38 PM

Ruby, natural, 3.352 carats. Origin: Burma (Mogok). Comes with a certificate.

Base d'asta

300 €

asta a tempo Fino al 15 novembre | 08:04 PM

MARQUISE-CUT DIAMOND, 10-carat lab-grown; this synthetic diamond has exactly the same physical, chemical, and visual properties as a natural diamond. A gemologist would be unable to distinguish it from a natural diamond with the naked eye or under a loupe. The guarantee certificate is an integral part of the description. We can ship your orders for the following flat rates: €40 (France), €50 (Europe)

Base d'asta

2.900 €

asta a tempo Fino al 15 novembre | 02:43 PM

Sapphire, 2.48 carats. Natural. Provenance: Sri Lanka. With AIG certificate.

Asta in corso 20 €

live 15 novembre | 02:00 PM

Diamond on paper 0.361 carat IGI color: 1 G, clarity VVS2, N° D2073

Stima

250 - 350 €

live 17 novembre | 01:30 PM

Round brilliant-cut diamond on paper, N/R, VS1.

Stima

8000 - 10.000 €

asta a tempo Fino al 15 novembre | 02:38 PM

Sapphire, 10.972 carats. Origin: Burma (Mogok). Comes with a certificate.

Asta in corso 200 €

live 15 novembre | 05:00 PM

Lot of 27 loose diamonds, brilliant cut, weighing approximately 3-3.5 points each. Total weight: 0.88 carat.

Stima

130 - 180 €

live 15 novembre | 02:00 PM

Diamond on paper 0.35 carat IGI Color 1 G, clarity VVS1 n°212494

Stima

250 - 350 €

asta a tempo Fino al 15 novembre | 02:39 PM

Emerald, 1.031 carats. Treated. Origin: Colombia. Comes with a certificate.

Base d'asta

150 €

asta a tempo Fino al 15 novembre | 02:40 PM

Green sapphire, 2.55 carats. Unheated. Provenance: Tanzania. With AIG certificate.

Base d'asta

60 €

live 15 novembre | 02:00 PM

Diamond on paper 0.56 carat IGI Colour 2 H, Clarity VVS1, N° D2144

Stima

300 - 400 €

live 15 novembre | 02:00 PM

Diamond on paper 0.54 carat IGI Colour 1 G, Clarity VVS1 , N° D0758

Stima

300 - 400 €

live 15 novembre | 02:00 PM

Diamond on paper 0.53 carat IGI Colour 1 G, Clarity VVS2 , N° D2378

Stima

300 - 400 €

live 15 novembre | 02:00 PM

Diamond on paper 0.365 carat IGI Colour 1+ F, Clarity: VVS1, N° D2088

Stima

250 - 350 €

live 15 novembre | 02:00 PM

Diamond on paper 0.361 carat IGI Color 1 G, clarity VVS1, N° D2091

Stima

250 - 350 €

asta a tempo Fino al 15 novembre | 02:00 PM

Round diamond on paper.

Asta in corso 24 €

asta a tempo Fino al 15 novembre | 02:45 PM

Ruby, 43.49 carats. Treated. (Signs of wear, scratches). Comes with a certificate.

Base d'asta

10 €

asta a tempo Fino al 15 novembre | 02:55 PM

A pair of pear-shaped emeralds on paper.

Base d'asta

1 €

Commissioni 0%

live 16 novembre | 07:00 PM

SANT'AGOSTINO AUCTION HOUSE

Base d'asta

100 €

17 novembre | 11:00 AM

An unmounted treated yellow-green marquise-cut diamond, measuring approximately 10.7 x 5.6 x 3.0mm, weight 1.21ct (VAT charged on hammer price)

Base d'asta

719 €

live 18 novembre | 02:30 PM

LOOSE FANCY DIAMOND

Stima

28.000 - 40.000 €

live 17 novembre | 11:00 AM

A 0.46-carat brilliant-cut diamond on paper.

Stima

100 - 200 €

live 17 novembre | 11:00 AM

Sealed diamond on paper, 0.40 ct; brilliant cut.

Stima

400 - 600 €

17 novembre | 11:00 AM

An unmounted treated green pear-cut diamond, measuring approximately 10.5 x 6.4 x 2.9mm, weight 1.32ct (VAT charged on hammer price)

Base d'asta

659 €

17 novembre | 11:00 AM

An unmounted treated green pear-cut diamond, measuring approximately 10.2 x 6.2 x 2.6mm, weight 1.14ct (VAT charged on hammer price)

Base d'asta

659 €

17 novembre | 11:00 AM

Two unmounted treated black brilliant-cut diamonds, measuring approximately 7.6-7.7 x 4.5mm, weight 1.74ct; and 7.7 x 4.9mm, weight 1.95ct (2) (VAT charged on hammer price)

Base d'asta

503 €

17 novembre | 11:00 AM

An unmounted treated yellow brilliant-cut diamond, measuring approximately 7.9 x 4.6mm, weight 1.78ct (VAT charged on hammer price)

Base d'asta

839 €

17 novembre | 11:00 AM

An unmounted treated bluish green princess-cut diamond, measuring approximately 6.3 x 6.2 x 4.4mm, weight 1.52ct (VAT charged on hammer price)

Base d'asta

659 €

17 novembre | 11:00 AM

An unmounted treated green radiant-cut diamond,measuring approximately 9.1 x 6.9 x 5.8mm, weight 3.46ct(VAT charged on hammer price)

Base d'asta

1.199 €

17 novembre | 11:00 AM

An unmounted fancy coloured diamond,

Base d'asta

935 €

live 18 novembre | 02:30 PM

LOOSE DIAMOND

Stima

25.000 - 30.000 €

live 18 novembre | 02:30 PM

LOOSE DIAMOND BRIOLETTE

Stima

7000 - 11.000 €

live 19 novembre | 02:15 PM

Round brilliant-cut diamond on paper weighing 2.07 ct.

Stima

6000 - 8.000 €

live 18 novembre | 01:00 PM

A 1.20-carat cushion-cut old-style diamond on paper.

Stima

600 - 800 €

live 18 novembre | 01:00 PM

1.37-carat pear-shaped ruby on paper.

Stima

1500 - 2.000 €

live 18 novembre | 01:00 PM

Oval-cut sapphire on paper, 2.69 carats.

Stima

1200 - 1.600 €

live 18 novembre | 01:00 PM

A 1.72-carat round faceted yellow sapphire on paper.

Stima

320 - 360 €

live 18 novembre | 01:00 PM

A 3.21-carat rectangular, step-cut emerald with beveled edges, mounted on paper.

Stima

220 - 260 €

live 18 novembre | 02:30 PM

Brilliant-cut DIAMOND weighing 1.71 carats.

Stima

3500 - 4.000 €

live 18 novembre | 02:30 PM

Sealed DIAMOND, brilliant cut, weighing 1.15 carats. In its case.

Stima

2000 - 2.500 €

live 18 novembre | 02:30 PM

Sealed brilliant-cut DIAMOND weighing 1.58 carats.

Stima

3500 - 4.000 €

live 18 novembre | 03:00 PM

AN UNMOUNTED 5.09 CARAT CEYLON NO HEAT SAPPHIRE octagonal mixed cut, 5.09 carats. Accompanied by a gemmological report stating the sapphire is Ceylon origin with no indications of heat treatment.

Stima

3500 - 6.000 €

live 18 novembre | 03:00 PM

A 1.08 CARAT NATURAL FANCY DEEP GREENISH BROWNISH YELLOW DIAMOND hexagonal step cut, 1.08 carats. Accompanied by a gemmological report stating the diamond is natural fancy deep greenish brownish yellow colour and SI1 clarity.

Stima

290 - 420 €

live 18 novembre | 03:00 PM

AN UNMOUNTED DIAMOND round brilliant cut, 1.05 carats.

Stima

1700 - 3.000 €

live 18 novembre | 03:00 PM

AN UNMOUNTED 1.98 CARAT COLOMBIAN EMERALD pear cut, 1.98 carats. Accompanied by a GIA report stating the emerald is Colombian origin with significant clarity enhancement, minor resin is present in surface cavities.

Stima

1700 - 3.000 €

live 18 novembre | 03:00 PM

AN UNMOUNTED 0.86 CARAT DIAMOND round brilliant cut, 0.86 carats. Accompanied by a gemmological report stating the diamond is D colour and I1 clarity.

Stima

350 - 600 €

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