This selection brings together loose natural old-mine cushion diamonds with asking prices from US$25,000 to US$150,000. Compare the price with the stone’s weight, dimensions, colour, clarity, grading report and movement video.
Prices below are in US dollars for the loose diamond. Confirm availability and a written quotation before arranging inspection or payment. A setting, taxes and duties depend on your requirements and destination. Insured shipping is included with a completed purchase; inspection-only logistics are agreed separately.
What is listed within your budget?
The selection is ordered by asking price. For a budget up to US$100,000, compare the two- to four-carat stones with the 5.16 ct G SI2 below. The 5.02 ct H VS2 is listed at US$120,000 and the 5.01 ct H VS1 at US$132,000 for buyers considering the US$100,000 to US$150,000 range.
2.13 Ct. D IF Old Mine Cushion
Asking price: US$30,000
- Reference
- IC-03358
- Measurements
- 7.74 x 6.52 x 4.68 mm
- Length-to-width
- 1.19
- Table
- 54%
- Depth
- 71.7%
- Fluorescence
- Strong Blue
- GIA report
- 5383322374
Available by private request
3.09 Ct. F SI2 Old Mine Cushion Brilliant
Asking price: US$38,400
- Reference
- IC-05881
- Measurements
- 10.21 x 8.10 x 4.47 mm
- Length-to-width
- 1.26
- Table
- 51%
- Depth
- 55.2%
- Fluorescence
- None
- GIA report
- 2487391394
Available by private request
4.02 Ct. K SI1 Old Mine Cushion Brilliant
Asking price: US$40,800
- Reference
- IC-05970
- Measurements
- 8.84 x 8.76 x 6.05 mm
- Length-to-width
- 1.01
- Table
- 51%
- Depth
- 69.1%
- Fluorescence
- None
- GIA report
- 2235459556
Available by private request
3.01 Ct. G VS2 Old Mine Cushion Brilliant
Asking price: US$51,600
- Reference
- IC-05912
- Measurements
- 8.24 x 8.05 x 5.57 mm
- Length-to-width
- 1.02
- Table
- 51%
- Depth
- 69.2%
- Fluorescence
- None
- GIA report
- 3505851339
Available by private request
3.06 Ct. G VVS2 Old Mine Cushion Brilliant
Asking price: US$61,200
- Reference
- IC-06323
- Measurements
- 8.49 x 8.18 x 5.39 mm
- Length-to-width
- 1.04
- Table
- 62%
- Depth
- 65.8%
- Fluorescence
- Faint
- GIA report
- 6237502358
Available by private request
5.16 Ct. G SI2 Old Mine Cushion
Asking price: US$88,800
- Reference
- IC-04768
- Measurements
- 12.35 x 9.21 x 5.23 mm
- Length-to-width
- 1.34
- Table
- 47%
- Depth
- 56.8%
- Fluorescence
- None
- GIA report
- 6224365647
Available by private request
5.02 Ct. H VS2 Old Mine Cushion
Asking price: US$120,000
- Reference
- IC-03575
- Measurements
- 10.39 x 9.11 x 6.41 mm
- Length-to-width
- 1.14
- Table
- 51%
- Depth
- 70.4%
- Fluorescence
- None
- GIA report
- 6214957359
Available by private request
5.01 Ct. H VS1 Old Mine Cushion
Asking price: US$132,000
- Reference
- IC-03524
- Measurements
- 10.85 x 9.39 x 6.32 mm
- Length-to-width
- 1.16
- Table
- 53%
- Depth
- 67.3%
- Fluorescence
- Faint
- GIA report
- 6214743435
Available by private request
Compare the trade-offs before choosing
A lower asking price can reflect a different combination of weight, colour, clarity, proportions and visual character. Review the GIA report and the specific diamond in motion. Ask for close views of inclusions, the girdle and the culet rather than assuming that a clarity grade alone answers how the stone will look.
For an engagement ring, send your preferred shape and approximate millimetre dimensions as well as your budget. If the budget includes the finished ring, tell us so we can consider the loose diamond and setting together.
The old-mine description identifies the cutting style. If historical age is essential to your purchase, ask what evidence is available for the particular diamond.
Request a selection and inspection terms
Use the form below to send the references you like, your country, timing and total budget. We will confirm availability and discuss the photographs, reports and inspection arrangements relevant to those stones.
Read how inspection, payment and international delivery are arranged.
To compare larger stones across a wider price range, see five-carat-plus old-mine cushions with GIA reports and videos.