The collection
21.37 ct bicolor sapphire, cushion, held between the fingers
Photograph

21.37 ct, 15.00 × 13.15 × 10.34 mm, cushion brilliant / step cut.

CWG1049 Bicolor sapphire

21.37 ct Bicolor Sapphire, Cushion, Sri Lanka, GRS Certified

A 21.37 carat natural bicolor sapphire from Sri Lanka, light yellow and blue, with a GRS report that records no indication of heat.

Enquire for price21.37 ct

Free express shipping worldwide GRS report GRS2025-090350 included

GRS certificate includedThis stone already has GRS report GRS2025-090350. It comes with the stone at no extra cost, so there is no report to add.Verify report GRS2025-090350

  • GRS certified
  • Natural
  • No indication of thermal treatment (per GRS report)
  • Sri Lanka
SKU
CWG1049
Variety
Bicolor sapphire
Colour
Light yellow and blue
Weight
21.37 ct
Dimensions
15.00 × 13.15 × 10.34 mm
Shape
Cushion
Cut
Brilliant / step cut
Origin
Sri Lanka
Treatment
No indication of thermal treatment (per GRS report)
The cut

Step cut

Top view
15.00 mm10.34
Side profile

Long, parallel facets step down from a large flat table to the edge, like a staircase. Light moves across the stone in broad, clean flashes rather than sparkle, so its colour and clarity are easy to see.

  • Broad, mirror-like flashes
  • Colour and clarity on show
  • Calm, architectural look
Enquire about CWG1049Opens WhatsApp to +66997975799 with this stone attached. Or email [email protected].

A large cushion of natural sapphire that splits into two colours: a soft, light yellow and a deep blue, with the blue gathering at the ends and the yellow filling the body. Over 15 mm across and more than 10 mm deep, it is a substantial stone.

It comes with GRS report GRS2025-090350, which identifies it as a natural bi-color sapphire from Sri Lanka and records no indication of thermal treatment. The report is included in the price.

Before it ships

Certification & shipping

Certification

GRS report GRS2025-090350 is included

The GRS report for this exact stone comes with your purchase at no extra charge. It was issued on September 10, 2025 and describes the stone independently of us.

Report number
GRS2025-090350
Issued
September 10, 2025
Report states
Natural bi-color sapphire, one faceted gemstone, cushion shape, brilliant/step cut, bi-colored light yellow and blue. No indication of thermal treatment. Origin Sri Lanka
Verify with GRS

Reports are issued by the laboratory directly. You can check this one with GRS at any time using the number above.

Shipping and returns

Free express shipping, worldwide

Shipping toCarrierTypical transitCost
ThailandExpress courier1–2 daysFree
United StatesFedEx or DHL Express2–4 daysFree
Europe and UKFedEx or DHL Express2–5 daysFree
Rest of the worldFedEx or DHL Express3–7 daysFree
  • In the boxThe stone in a gem box, an itemised invoice, and the lab report if you add one.
  • Returns14 days from delivery for a full refund, in its original condition. Return postage is paid by the buyer.
  • Voids a returnThe stone has been set, recut, altered or damaged.

Dispatched within 24 to 48 hours of payment, or once the lab report is back. Full detail in our shipping and returns policy.

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