Golden Yellow Australian Sapphire 6.23ct Cushion
Golden Yellow Australian Sapphire 6.23ct Cushion
Independently certified on request · Free lifetime re-authentication
In stock · dispatched within 1–2 business days · free insured delivery Australia-wide, signature on delivery
30-day returns on in-stock pieces. Our Guarantee · Prefer to see it first? Book a private viewing, in Sydney or by video.
Independent Valuation — Available on Request
Every gemstone and jewellery piece we sell — ready-made or bespoke — can be accompanied by an independent valuation certificate, prepared on request by a qualified independent valuer of established repute. It provides a formal, third-party statement of value that you may present to your insurer when arranging cover for your purchase.
Request yours at the time of purchase, or contact us at any time.
Stone Details
- Gem type
- Sapphire
- Origin
- Australia
- Carat weight
- 6.23 ct
- Dimensions
- 12.18 x 9.79 x 6.31 mm
- Shape & cut
- Cushion
- Colour
- Golden Yellow
- Tone
- Medium tone, vivid saturation
- Treatment
- Heated
- Certification
- Available on request
- Stone ID
- 1688
Treatment Disclosure
Heat treatment disclosed. This sapphire has been heat-treated — a permanent, stable enhancement applied to the great majority of sapphires on the world market, and accepted trade practice when disclosed. Ministry of Gems discloses it here in full. Independent laboratory verification can be arranged on request before purchase.
✓ Assessed in-house by our FGAA gemmologist
100% natural, earth-mined stone. As company policy we do not sell synthetic or man-made gemstones. Where a stone is heated, this refers to traditional heat treatment of a natural stone — it never means the stone is artificial.
View Digital Gemstone Passport →A natural golden yellow sapphire from Australia, cut as a cushion and weighing 6.23 carats.
- Weight: 6.23 ct
- Dimensions: 12.18 x 9.79 x 6.31 mm
- Cut: Cushion
- Colour: Golden Yellow
- Origin: Australia
- Treatment: Heated
- Stock no.: 1688
Pictured in our Split-Shank Halo design and worn in our Royal Cathedral ring — both design visualisations built to this stone's exact measurements. Commission either setting (or your own design) around this stone via Design your Ring, or acquire the stone loose.
House assurance. A three-generation Australian gem house with roots in the Ceylon gem trade since the 1960s. This stone was assessed in-house by our FGAA-qualified gemmologist, with treatment disclosed and independent certification available on request. Free lifetime re-authentication.
Sapphire is the birthstone of September and the traditional gemstone of the 5th and 45th wedding anniversaries.
Ministry of Gems® is a three-generation Australian gem house with roots in the Ceylon gem trade since the 1960s.
Verify this stone: Digital Gemstone Passport — https://ministryofgems.com.au/products/golden-yellow-australian-sapphire-6-23ct-cushion-1688?view=passport Read: gemmological reference · how to read a certificate
Delivery & returns
Delivery. Free insured shipping Australia-wide, tracked, with signature on delivery. In-stock pieces are dispatched within one to two business days. International delivery is fully insured and tracked; the rate is shown at checkout.
Returns. 30-day returns on in-stock pieces; refunds are processed within ten business days of receipt. Shipping & returns in full.
Our guarantee
Every stone we sell is assessed in-house by our FGAA-qualified gemmologist, with its treatment status disclosed in writing and recorded on its Digital Gemstone Passport. Independent laboratory certification and an independent valuation certificate are available on request. Re-authentication is free for as long as you own the piece. Read the guarantee.
Sizing & fit
Dimensions and carat weights are listed above. For length, drop or fit questions, ask our team and we will answer in writing.
Made to order
This stone is sold loose, with its gemmological record and Digital Gemstone Passport. Ask us to set it in a ring, pendant or earrings made to order in our own workshop and we will design around the stone and quote in writing, with no payment taken until you have accepted the quotation. View it in our Sydney showroom or by video first if you prefer.
You may also like
The Ministry difference
Four things a jeweller cannot usually offer.
A gemmologist, not a salespersonBook a private consultation in Sydney or by video, with our FGAA-qualified gemmologist.Book Consultation · Pitt St Showroom
Design it around the stoneChoose the stone first, then the piece, made in our own workshop in two to four weeks.Design Your Jewellery
A Passport for every stoneTreatment disclosed, assessment recorded, verifiable by anyone with the link.How the Passport works