金光藍寶石(Gold Sheen Sapphire)的特別優惠方案

我願意以特別優惠的價格促銷金光藍寶石,目的是提高金光藍寶石在寶石行業的知名度,使得珠寶設計師們更多地應用這個新的剛玉品種。雖然目前已有金光藍寶石的設計獲得一些獎項, 但我和Mr Tanzim﹣金光藍寶石的發現人,想把這一獨特的新寶石品種推動至屬於它的價值所在的領域。

以下是我提供的特別優惠方案:

  • 根據你的需求,無論原石或特別打磨切割,全部人手選定
  • 不管特級或極特級全部劃一價格
  • 任何大小形狀切割均可,誤差小至 0.1毫米
  • 一年內再次購買保證維持原價格不變
  • 你設計出的珠寶首飾可免費展示在我的網站及相關公眾媒體公開售賣

金光藍寶石的價格在過去的一年里提升了100%。普通級別的售價去年是每克拉20美金,現在是每克拉40美金。特級的售價去年是大約每克拉50美金,而現在要大概200美金甚至更多。

所以,首先我願意給珠寶設計師們提供優惠的價格,並可根據設計的需要來切割。如有意購買已切割打磨的現貨裸石或樣品,我的網站上有更優惠的價格﹣ http://sjwgems.com/wholesale/gold-sheen-sapphire-wholesale/.

其次,價格鎖定一年的方案可使珠寶設計師有信心推出價格穩定的同類產品。前不久,我們剛剛為美國紐約一個珠寶設計商量身度做地完成了5000克拉的訂單,為了達到所需的規格,我們切割了400公斤的原石以確保每一枚寶石符合訂購者的要求。由此可見,任何規格及要求的訂單我們都會圓滿地完成。

一塊神奇的金光藍寶石

這是塊迄今為止我看到的最令人歎為觀止的金光藍寶石。通常情況下,金光藍寶石在不同光線的照耀下會呈現金色或銅色或青銅色等,而這塊寶石不管在怎樣的光線下都閃耀着存正的金色,  更有趣的是在這塊寶石的中間還開了一個好像是黃色鑽石的窗口,令人驚歎不已。

Unique Gold Sheen Sapphire
重量: 44 克拉。長寬高 24mm x 15mm x 13mm

New Factory Cuttings – Gold Sheen Sapphire

The latest batch of Gold Sheen Sapphires from the factory are showing some remarkable characteristics.

Gold Sheen Sapphire cabochon
Gold Sheen Sapphire cabochons, yet to be graded.

First, we are seeing vivid asterism in the cabs.  All gold sheen sapphires cabs have some degree of asterism, but usually it is quite faint.  The rough we are cutting now seems to have more rutile, which gives them both a ‘sleepier’ look, and the much more prominent star:

Gold sheen sapphire cabochons vivid star
Prominent star features on gold sheen sapphire cabochons

You can see the rutile silk under multiple light sources (with a single light source, these would have a prominent star)

Gold Sheen Sapphire cabs softer silk look
Gold Sheen Sapphire cabs showing softer silk look due to greater rutile inclusion

Then, there was this incredible find – for the first time we have seen completely transparent gold sheen sapphire with full sheen and star effect.  The smartphone snapshot does it no justice, but imagine the transparency of a vivid blue medium tone sapphire, but instead of blue, the colour is golden sheen.

transparent star gold sheen sapphire
Incredibly beautiful star gold sheen sapphire, completely transparent, very very rare.

Out of 200,000 carats cut, we have found less than 20 carats of stones like this. We know how to cut is as cabochons, so that is what the factory did.  But what I am thinking is, what if we faceted it with a brilliant cut?  I’ll run it by Tanzim and see what he thinks.

Gold Sheen Sapphire – Beyond Rare

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Some feature combinations of Gold Sheen Sapphire make a particular gem not just rare, but unique.  These one of a kind pieces are true collectors and investment items.

Here is a showcase of some of the unique Gold Sheen Sapphires so far discovered:

Gem Ct Size What makes it unique
Gold Sheen Sapphire Collectors piece full hex pattern 96.65 Full clear hex through the entire stone, large carat size
Gold Sheen Sapphire Collectors Piece 133.3 50% partial hex, large carat size
Gold Sheen Sapphire Collectors piece Unique ~60 Partial clear hex, 3D window with yellow sapphire, large carat size
Gold Sheen Sapphire Collectors piece 164.5 Carats 165 Partial hex, large carat size, natural shape polish
Gold Sheen Sapphire Collectors Piece 223.9 Carat 223 Partial hex, very large carat size, natural shape polish
Gold Sheen Sapphire Pendant 40 Intense colour, intense sheen effect
Gold Sheen Sapphire Collectors piece Unique 107.9 Blue/metallic banding, large clearly defined blue area, carat size
Gold Sheen Sapphire Pendant  29 Copper sheen, carat size

These are some of the finest pieces yet discovered out of several million carats so far cut.  Most of them are in my private collection, but available for sale to a serious collector or investor.

Please join my mailing list if you would like to be notified of new unique discoveries:

What to look for when buying Gold Sheen Sapphire

Gold Sheen Sapphire is different to other precious gemstones, while three of the ‘4 C’s’ – cut and carat size and colour, apply, clarity is all but irrelevant.  In some respects, Gold Sheen Sapphire is similar to opal, it is an opaque gem where the colour is a feature of different types of mineral inclusion. However Gold Sheen Sapphire also retains the properties of sapphire, and often the predominant colour is blue, clear, or fancy sapphire.

These are some tips of what to look for and what to avoid when buying Gold Sheen Sapphire:

  • Surface Flaws – the lustre of Gold Sheen Sapphire is a major factor in the beauty of the gem.  Stones should have an eye clean surface.  Comparing two similar pieces with a 10x loupe will show that the better the surface the greater the appeal of the gem.
Gold Sheen Sapphire with full hex pattern
Gold Sheen Sapphire with full hex pattern, minor surface flaws
  • Structural Flaws – as with any gemstone, cracks through the stone can cause problems with durability and jewellery setting.  However it is important not to mistake geometric and inclusion features of the gem as a structural flaw.  Generally this is obvious though, with closer inspection.
  • Asterism – All Gold Sheen Sapphire cabs will display some degree of asterism.  It will vary from very weak to strong, but it will be there.  Strong aterism is quite rare.
gold sheen sapphire with star
All Gold Sheen Sapphire cabs show asterism
  • Vary the light – look at the gem under warm and cool light, and in daylight if possible.  I am not sure if this should be classed as ‘colour change’, but the visual difference under different lighting types will be quite pronounced.
Gold Sheen Sapphire
The same gem under warm, cool and daylight
  • Geometric Patterns – One, if not the, most beautiful feature of Gold Sheen Sapphire are the naturally occurring geometric patterns.  These are most evident as parallel lines, partial or full hex patterns, often interlaced with clear or coloured sapphire.  These patterns made every Gold Sheen Sapphire absolutely unique, like a highly prominent fingerprint.  Partial hex patterns are rare, and the fuller the hex, the rarer the occurrence.  Full hex patterns are very, very rare, occurring in less than one in 100,000 pieces.
partial hex gold sheen sapphire
Partial hex in this 130 carat collectors piece gem. The features of this gem and its size make it unique.
  • Craze lines – not to be mistaken with structural flaws, craze lines are small fractured that are usually between 70 and 120 degrees to the crystal growth lines.  They have no structural impact on the gem.
gold sheen sapphire ring
Beautiful sheen effect with craze lines across the crystal growth lines.
  • Aurora Effect – in addition to the sheen effect, some stones will have a combination of green and blue colour that will change as light plays across the gem  Tanzim Khan (the discoverer of Gold Sheen Sapphire) calls this an ‘Aurora’ effect, because the colour effect is not unlike the Aurora Borealis.  I am not sure if this is a new feature or a type of iridescence, but in any event., stones that exhibit this are very rare.  You can see an example of the effect in this Youtube video – https://youtu.be/XCjCiT3q2TM
  • Colours – The primary colours of corundum in Gold Sheen Sapphire are blue, white, yellow, green, orange, red.  The metallic colours are gold, brass, bronze and copper.  The following table lists the colours and their occurrence:
Primary Colour Metallic Colour Other Features Rarity
Blue Under 20 carats Common
White Brass Common
Yellow Bronze Prominent blue/metallic banding Uncommon
Green Gold Partial Hex Uncommon
20 to 40 carats Uncommon
Copper Full Hex Rare
40 to 60 carats Rare
Orange Full Hex clear window Very Rare
Red Over 60 Carats Very Rare
Gold Sheen Sapphire
Green, blue, yellow and gold are evident when this gem is lit from the side.

The Beauty of Gold Sheen Sapphire

One thing I have been trying to get right for a while is how to capture the beauty of Gold Sheen Sapphire in a photo. I have tried many combinations of light and camera settings, with a very good digital SLR, and yet in some cases just the camera on my smartphone seems to take better pictures.

Gold Sheen Sapphire
How to describe a gem that gives so much variation in a single piece?
 The appeal of Gold Sheen Sapphire comes not just from the light it returns, but from the play of light across the gem. Lustre plays a major role, more so than almost any other gem. The included nature of Gold Sheen Sapphire is not unlike opal, and so different angles of light highlight completely different characteristics in the stone. While the sheen effect in Gold Sheen is not unique (Some rubies and black sapphire has it), it is nevertheless far more prominent than any other type of gem.
Gold Sheen Sapphire
Gold Sheen Sapphire gem under warm, cool and direct daylight.

Capturing the inherent beauty of Gold Sheen Sapphire is one thing, but then describing it is another. Using the standard gemology grading we only have ‘brown’ to describe the prominent colour. There is no descriptor for the metallic gold, bronze, copper and brass, not for the colours of metallic blue, greens orange and yellow that often appear as secondary and tertiary colours.

And then, how to describe the geometric patterns and craze lines within the gem? Which to me are by far it’s most appealing aspect.

Gold Sheen Sapphire
The hex is a geometric feature that forms transparent window through the gem that displays an intriguing 3D effect

Tanzim Khan, the discoverer of Gold Sheen Sapphire, describes the complex patterns as taking you on a journey. Indeed it does, as you gaze into the stone you see ever more richness and beauty that emerge from the depths. The 3D effect of the inclusions is unlike anything else.

Gold Sheen Sapphire
Nothing shows the journey of the eye in Gold Sheen Sapphire better than this unique gem. The depth and beauty of this stone has to be seen first hand to be believed.

Like ruby, Gold Sheen Sapphire is at its best under warm light, in the mornings and evenings. Yet under direct, cool light, aspects within the gem can be seen that were otherwise hidden, and vivid blues can emerge in strong white light that make it look like sapphire set in a cage of bronze.

Gold Sheen Sapphire
Blue sapphire band ‘captured’ in the gold and bronze of Gold Sheen Sapphire.

Price of Gold Sheen Sapphire – 2 Year History

I have been tracking the price of Gold Sheen Sapphire since I first started to buy it in 2014. Recently the street price has seen a dramatic increase, certainly due to its increasing popularity with designers and investors.

From the very start Tanzim Khan (the discoverer of Gold Sheen Sapphire) has been maintaining an impressive effort to provide information and education about this new variety of corundum. I have made a fact sheet available on my website and I am working on a grading system that I am developing in conjunction with Tanzim and Gemological Labs interested in participating.

This is the two year price history of Gold Sheen Sapphire:

Gold Sheen Sapphire Price History

Some explanation about the chart.

Currently we have 3 grades for GSS:

Grade 1 – No surface defects, no structural defects, or ‘very rare’
Grade 2 – Eye clean surface, no structural defects, or ‘rare’
Grade 3 – Minor surface defects, minor structural defects. or ‘common’

Anything less than Grade 3 is not available for sale and either discarded or re-cut.

“Buy” is the wholesale price for Grade 3 stones in large quantities over 10,000 carats

“Sell” is the price offered for sale from retail or trade fare for single stones or small sales.

“Street” is the negotiated price for small quantities of stones of various grades.

Gold Sheen Sapphire can also be ‘unique’, which are typically collectors pieces over 50 carats in size. The price for these can vary from $100 per carat to simply ‘no price’ since it only depends on what the seller and buyer are willing to negotiate. Some examples of wholesale stones in calibrated sizes are on my website.

The good news is that for jewelry designers and retailers, the wholesale price of Gold Sheen Sapphire has not caught up to the street price yet.