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Cushion|Natural|IGI

2.51ct M SI1 Cushion Natural Diamond

VG • M/SI1 • IGI 350864449

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 350864449

Diamond specifications and retailer prices

From £3,097 GBP
As of November 4, 2026
Save £1,133 GBP (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,230 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 350864449. Listed at 4 retailers as of November 2, 2026, with prices from £3,097 to £4,230, a £1,133 spread on the same certified stone. Yorxs lists it at £4,230. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
M
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
Crown angle30.9°
Pavilion angle34.6°
OriginNatural
Grading LabIGI
CertificateIGI 350864449
Dimensions8.35 × 7.13 × 4.76 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
8.35 mm7.13 mm2.51 ctM / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateIGI 350864449
Side View
Table 69.0%Crown 30.9°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,097 GBP|Low: £3,097 GBP|High: £4,230 GBP|Avg: £3,487 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 6, 2026
Retailer 1£3,097 GBP
Retailer 2£3,276 GBP
Retailer 3£3,384 GBP
Yorxs£4,215 GBP

23 data points across 4 retailers

4 retailers£3,097 GBP to £4,230 GBP

B+
Cheapest Retailer
-
£3,097 GBP
B+
Retailer 2
-
£3,276 GBP
View
B
Retailer 3
-
£4,214 GBP
View
Most Expensive
B+
Yorxs
9-24 · Nov 2
£4,230 GBP
€5,392 EUR
View
3 more retailers have this diamond
Prices start from £3,097 GBPSave up to £1,133 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
2.51ct Cushion
£3,097 GBP