






Oasis Sapphire and Diamond Ring
This design showcases a mesmerising composition, centred around an 3.74ct emerald cut Madagascan blue/green sapphire. This sapphire displays hues that blend the shades of blue and green. The emerald cut features step-like facets, accentuating the gemstone's clarity and creating an elegant, mirrored effect. Complementing the sapphire are two baguette cut 0.57ct white diamonds that boast an F-G colour grading, exhibiting a near-colourless spectrum, and possess a perfect VSI clarity.
Ask us to send you a complimentary sizer tool upon placing your order, or order one here.
Have an existing ring that fits? Match its measurements to our ring size chart.
Keeping it a surprise? We recommend purchasing based on a standard sizing guide then resizing later.
These sizes represent the average female ring size:
Small - Size K
Medium - Size N
Large - Size Q
Still unsure? Read more here.
Made to Order. Please allow 4 to 6 weeks for production.
STONE DETAILS
DESIGN SPECIFICATIONS
Complimentary Resize
Each ring includes a complimentary resize.
Ready-to-Ship Rings: Typically made in sizes L or M. If resizing is required, please allow up to 7 business days.
Significant Resizing: In some cases, substantial size adjustments may require a remake, extending production time.
Sizing Range: Our pricing is based on sizes I–Q. Sizes outside this range may incur a surcharge for additional material. For more details, please contact our Customer Care team.
SHIPPING
We offer worldwide insured express shipping with DHL or Australia Post. All orders require a signature upon delivery for added security.
Flat rates are as follows:
- Within Australia: $20 | 1-5 business days
- International: $80 | 5-12 business days
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Worldwide Shipping
We offer secure worldwide shipping. Tracked and insured until it’s in your hands.
Independent Valuations
Pieces over $4,000 come with a third-party accredited valuation certificate for peace of mind and insurance.
Masterfully crafted
Each Black Finch piece is designed and handcrafted by expert jewellers in our Melbourne studio.

Sustainability
Each Black Finch piece is handcrafted in our Melbourne studio using 100% recycled refined gold, eliminating the need for new mining. We ethically source traceable sapphires and conflict-free diamonds that adhere to the Kimberly Process Certification.