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Cushion|Natural|IGI

4.53ct K SI2 Cushion Natural Diamond

ID • K/SI2 • IGI 657443067

Certificate IGI 657443067

Diamond specifications and retailer prices

From £18,709 GBP
As of November 4, 2026
Save £2,940 GBP (14%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £21,649 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 4.53ct natural cushion diamond

This 4.53ct natural cushion sits in the three to five carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 657443067. Listed at 5 retailers as of November 4, 2026, with prices from £18,709 to £21,649, a £2,940 spread on the same certified stone. Yorxs lists it at £21,649. 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

4.53
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabIGI
CertificateIGI 657443067
Dimensions11.94 × 8.00 × 5.54 mm
L/W Ratio1.49
Top View
11.94 mm8.00 mm4.53 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 657443067
Side View
Table 56.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.3%

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: Nov 4
Current: £19,399 GBP|Low: £18,709 GBP|High: £21,702 GBP|Avg: £19,860 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 3£18,709 GBP
Retailer 1£19,399 GBP
Retailer 2£19,511 GBP
Retailer 4£20,149 GBP
Yorxs£21,649 GBP

17 data points across 5 retailers

5 retailers£18,709 GBP to £21,649 GBP

A
Cheapest Retailer
-
£18,709 GBP
A
Retailer 2
-
£19,399 GBP
View
A
Retailer 3
-
£19,511 GBP
View
B+
Retailer 4
-
£20,149 GBP
View
Most Expensive
B+
Yorxs
489907965 · Nov 6
£21,649 GBP
€27,597 EUR
View
4 more retailers have this diamond
Prices start from £18,709 GBPSave up to £2,940 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
4.53ct Cushion
£18,709 GBP