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Cushion|Natural|GIA

1.31ct M SI1 Cushion Natural Diamond

EX • M/SI1 • GIA 2215251216

Certificate GIA 2215251216

Diamond specifications and retailer prices

From £1,798 GBP
$2,406 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,798 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2215251216. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.31
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2215251216
Dimensions6.71 × 5.89 mm
L/W Ratio1.14
Top View
6.71 mm5.89 mm1.31 ctM / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2215251216
Side View
Table 57.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 69.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £1,798 GBP|Low: £1,774 GBP|High: £1,899 GBP|Avg: £1,824 GBP|-5.4%
September 23, 2026
B2C Jewels£1,798 GBP

3 data points across 1 retailer

1 retailer

B
B2C Jewels
18335175 · Nov 6
£1,798 GBP
$2,406 USD
View

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B
1.31ct Cushion
£1,798 GBP