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Cushion|Natural|IGI

2.51ct F SI2 Cushion Natural Diamond

VG • F/SI2 • IGI 799674629

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 799674629

Diamond specifications and retailer prices

From £4,031 GBP
SGD 7,298 SGD
As of October 31, 2026
Save £1,336 GBP (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £7,609 GBP at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 799674629. Listed at 7 retailers as of October 31, 2026, with a 33% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle35.8°
OriginNatural
Grading LabIGI
CertificateIGI 799674629
Dimensions8.14 × 7.24 × 5.04 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
8.14 mm7.24 mm2.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 799674629
Side View
Table 60.0%Crown 37.7°Girdle: THN-THKPavilion 35.8°Culet: NoneDepth 69.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,198 GBP|Low: £4,031 GBP|High: £8,187 GBP|Avg: £5,365 GBP|-13.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 25, 2026
Retailer 3£4,031 GBP
Retailer 2£4,191 GBP
Retailer 1£4,198 GBP
Retailer 4£4,665 GBP
Retailer 5£4,901 GBP
Retailer 6£5,366 GBP
Retailer 7£6,625 GBP
Wholesale Diamonds Direct£7,609 GBP

25 data points across 8 retailers

7 retailers£4,031 GBP to £5,366 GBP

A
Cheapest Retailer
-
£4,031 GBP
SGD 7,298 SGD
A
Retailer 2
-
£4,191 GBP
$5,615 USD
View
A
Retailer 3
-
£4,198 GBP
$5,625 USD
View
A
Retailer 4
-
£4,665 GBP
$6,250 USD
View
A
Retailer 5
-
£4,901 GBP
$6,566 USD
View
A
Retailer 6
-
£5,366 GBP
$7,190 USD
View
Most Expensive
Wholesale Diamonds Direct
262947277 · Oct 23
£7,609 GBP
$10,196 USD
View
Price last confirmed 9 days ago
6 more retailers have this diamond
Prices start from £4,031 GBPSave up to £1,336 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.

A
2.51ct Cushion
£4,031 GBP