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Round|Natural|IGI

1.53ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 563233525

Shape and cutting style on the report: Round brilliant

Certificate IGI 563233525

Diamond specifications and retailer prices

From £1,158 GBP
As of November 6, 2026
Save £1,389 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,556 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 563233525. Listed at 12 retailers as of November 4, 2026, with a 120% 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

1.53
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.3°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 563233525
Dimensions7.16 × 7.10 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.16 mm7.10 mm1.53 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 563233525
Side View
Table 59.0%Crown 38.3°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 65.3%

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 6
Current: £1,158 GBP|Low: £1,158 GBP|High: £2,584 GBP|Avg: £1,752 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1£1,158 GBP
Retailer 2£1,601 GBP
Retailer 3£1,684 GBP
Retailer 4£1,779 GBP
Retailer 5£2,548 GBP

46 data points across 5 retailers

12 retailers£1,158 GBP to £2,548 GBP

A
Cheapest Retailer
-
£1,158 GBP
B+
Retailer 2
-
£1,317 GBP
View
Retailer 3
-
£1,458 GBP
View
Price last confirmed 36 days ago
B+
Retailer 4
-
£1,486 GBP
View
Retailer 5
-
£1,525 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£1,560 GBP
View
B+
Retailer 7
-
£1,601 GBP
View
Retailer 8
-
£1,682 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£1,684 GBP
View
B+
Retailer 10
-
£1,779 GBP
View
B+
Retailer 11
-
£2,548 GBP
View
Most Expensive
NZ Jewellers
d1b63eb7-ae66-4307-9df5-1de106fa082d · Sep 28
£3,556 GBP
$4,786 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from £1,158 GBPSave up to £1,389 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
1.53ct Round
£1,158 GBP