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Round|Natural|IGI

1.53ct M SI1 Round Natural Diamond

VG • M/SI1 • IGI 522241537

Shape and cutting style on the report: Round brilliant

Certificate IGI 522241537

Diamond specifications and retailer prices

From £1,719 GBP
As of November 4, 2026
Save £572 GBP (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,291 GBP at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 522241537. Listed at 4 retailers as of November 4, 2026, with prices from £1,719 to £2,291, a £572 spread on the same certified stone. Cape Diamonds lists it at £2,291. 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

1.53
Carat
M
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 522241537
Dimensions7.18 × 7.25 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.18 mm7.25 mm1.53 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 522241537
Side View
Table 56.5%Crown 37°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.2%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £2,291 GBP|Low: £1,328 GBP|High: £2,307 GBP|Avg: £1,857 GBP|+2.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£1,328 GBP
Retailer 4£1,719 GBP
Retailer 3£1,898 GBP
Retailer 2£2,024 GBP
Cape Diamonds£2,291 GBP

37 data points across 5 retailers

4 retailers£1,719 GBP to £2,291 GBP

B+
Cheapest Retailer
-
£1,719 GBP
B+
Retailer 2
-
£1,898 GBP
View
B+
Retailer 3
-
£2,024 GBP
View
Most Expensive
B
Cape Diamonds
cert_522241537 · Nov 5
£2,291 GBP
ZAR 49,816 ZAR
View
3 more retailers have this diamond
Prices start from £1,719 GBPSave up to £572 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+
1.53ct Round
£1,719 GBP