Blue Sapphire

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4.35 Carat ---- Natural Ceylon Blue Sapphire---- Oval Cut ---- ASGL Certified: An exceptional, investment-grade gemstone. It is celebrated for its vivid, luminous blue hue (often varying from cornflower to deep ocean blue), superior transparency, and brilliant scintillation.

2026

4.35 Carat ---- Natural Ceylon Blue Sapphire---- Oval Cut ---- ASGL Certified

California GemstonesOceanside, CA

10.25 Carat ---- Natural Kashmir Blue Sapphire---- Oval Cut ---- EGL Certified: A Kashmir blue sapphire is an extraordinarily high-value gemstone. Known for their iconic "cornflower blue" color and velvety texture, natural gems of this caliber can command anywhere from $40,000 at

2026

10.25 Carat ---- Natural Kashmir Blue Sapphire---- Oval Cut ---- EGL Certified

California GemstonesOceanside, CA

9.80 Carat -- Natural Indian Blue Sapphire ---- Asscher Cut----EGL Certified: A highly sought-after gemstone. Combining a substantial carat weight with a distinctive step-cut geometry, this stone is prized for its deep, velvety color, Art Deco elegance, and strong astrological

2026

9.80 Carat -- Natural Indian Blue Sapphire ---- Asscher Cut----EGL Certified

California GemstonesOceanside, CA

3.30 Carat ---- Natural Ceylon Blue Sapphire---- Trillion Cut ---- ASGL Certified: Known for its brilliant, vivid hues, the trillion cut maximizes fire and sparkle. This size is ideal for a striking solitaire ring or a stunning pendant.

2026

3.30 Carat ---- Natural Ceylon Blue Sapphire---- Trillion Cut ---- ASGL Certified

California GemstonesOceanside, CA

5.00 Carat ---- Natural Montana Purple Sapphire ----Round Cut ---- ASGL Certified: Yogo sapphires from Yogo Gulch are famous for their uniform clarity and deep violet-blue tones. Montana sapphires are famous for their unique color shifts (often showing both blue and purple/lavender)

2026

5.00 Carat ---- Natural Montana Purple Sapphire ----Round Cut ---- ASGL Certified

California GemstonesOceanside, CA

15.05 Carat ---- Blue Spinel--- Emerald---- IGI Certified: A spectacular and rare gemstone. It is an exceptional collector's piece that perfectly marries the rich, vivid hue of fine blue sapphire with the crisp, sophisticated step-faceting of an emerald cut.

2026

15.05 Carat ---- Blue Spinel--- Emerald---- IGI Certified

California GemstonesOceanside, CA

SOLD

2007 Rolex Submariner Date Blue 16613 40mm Blue Dial 18k Yellow Gold Steel: Style Number: 16613 Serial: Z41**** Year: 2007 Model: Rolex Submariner Date Case Material: Stainless Steel Band: 18k Yellow Gold & Stainless Steel Bezel: Blue Dial: Blue Crystal: Sapphire Case Size: 4

2026

2007 Rolex Submariner Date Blue 16613 40mm Blue Dial 18k Yellow Gold Steel

Activity AuctionsDover, DE

37.97ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 47FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

37.97ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 47FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

39.18ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 48FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

39.18ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 48FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

35.11ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 63FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

35.11ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 63FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

75.21ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 68FD: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

75.21ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 68FD

ThousandPlanetThung Wat Don, Sathorn, Bangkok

41.86ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 32FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

41.86ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 32FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

30.67ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 95FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

30.67ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 95FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

48.84ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 30FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

48.84ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 30FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

19.47ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

19.47ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

25.89ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 74FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

25.89ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 74FC

ThousandPlanetThung Wat Don, Sathorn, Bangkok

0.54 Ct Natural Intense blue sapphire round cut: Weight - 0.54 Ct / Dimensions- 4.70 x 4.70 x 3.00 mm / Shape - Round Cut / Clarity - VS-2 / Origin - Sri Lanka / Treatment - Standard Heated

2026

0.54 Ct Natural Intense blue sapphire round cut

Gems AuctionBangkok, TH

1.31 Ct Natural Blue Sapphire Pear Cut: Weight - 1.31 Ct / Size- 7.40 x 5.30 x 4.00 mm / Shape - Pear Cut / Clarity - VVS / Origin - Sri Lanka / Treatment - Standard Heated

2026

1.31 Ct Natural Blue Sapphire Pear Cut

Gems AuctionBangkok, TH

3.34 Ct Natural Blue Sapphire Octagon Cut: Weight - 3.34 Ct / Dimensions- 11.30 x 6.60 x 3.70 mm / Shape - Octagon Cut / Clarity - SI / Origin - Sri Lanka / Treatment - Diffused

2026

3.34 Ct Natural Blue Sapphire Octagon Cut

Gems AuctionBangkok, TH

0.85 Ct Natural Blue Sapphire Oval Cut: Weight - 0.85 Ct / Dimensions- 5.90 x 5.00 x 3.40 mm / Shape - Oval Cut / Clarity - VVS / Origin - Sri Lanka / Comments - Standard Heated

2026

0.85 Ct Natural Blue Sapphire Oval Cut

Gems AuctionBangkok, TH

0.73 Ct Natural Blue Sapphire Pear Cut: Weight - 0.73 Ct / Size- 6.80 x 4.70 x 3.00 mm / Shape - Pear Cut / Clarity - Opaque / Origin - Sri Lanka / Treatment - Standard Heated

2026

0.73 Ct Natural Blue Sapphire Pear Cut

Gems AuctionBangkok, TH

Vintage 18kt Yellow Gold Ladies Ring: With woven texture set with a center cluster of seven round mixed cut dark blue natural sapphires measureing 2.5 x 4.5 mm. Highlighted by banners of red enamel work. Total weight 10 grams. Circa 1960.

2026

Vintage 18kt Yellow Gold Ladies Ring

Bruhns Auction Gallery Denver, CO

14K Gold Star Sapphire Ring with Blue Sapphire Side Gemstones, Sz 7, TW 5.8g: Ring has Size Adjuster

2026

14K Gold Star Sapphire Ring with Blue Sapphire Side Gemstones, Sz 7, TW 5.8g

A & A Auction GallerySanta Cruz, CA

Natural Corundum Sapphire: GIA Gemstone Certification Stats Dimensions: 10.40 x 8.40 x 4.87 mm Weight: 3.90 carats

2026

Natural Corundum Sapphire

Blue Box Auction GalleryNorfolk, VA

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