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Round|Natural|IGI

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 713558069

Shape and cutting style on the report: Round brilliant

Certificate IGI 713558069

Diamond specifications and retailer prices

From £2,123 GBP
As of November 5, 2026
Save £1,866 GBP (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,237 GBP at NZ Jewellers · As of September 19, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 713558069. Listed at 12 retailers as of November 4, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.53
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 713558069
Dimensions7.42 × 7.37 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.42 mm7.37 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 713558069
Side View
Table 55.0%Crown 33.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.5%

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 5
Current: £2,491 GBP|Low: £2,123 GBP|High: £4,250 GBP|Avg: £2,728 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£2,123 GBP
Retailer 7£2,195 GBP
Retailer 6£2,318 GBP
Retailer 1£2,491 GBP
Retailer 8£2,511 GBP
Retailer 2£2,785 GBP
Retailer 3£2,920 GBP
Retailer 5£3,990 GBP

29 data points across 8 retailers

12 retailers£2,123 GBP to £3,990 GBP

A
Cheapest Retailer
-
£2,123 GBP
A
Retailer 2
-
£2,195 GBP
View
A
Retailer 3
-
£2,318 GBP
View
Retailer 4
-
£2,341 GBP
View
Price last confirmed 102 days ago
Retailer 5
-
£2,432 GBP
View
Price last confirmed 44 days ago
A
Retailer 6
-
£2,491 GBP
View
Retailer 7
-
£2,511 GBP
View
Price last confirmed 21 days ago
A
Retailer 8
-
£2,785 GBP
View
Retailer 9
-
£2,806 GBP
View
Price last confirmed 45 days ago
B+
Retailer 10
-
£2,920 GBP
View
B
Retailer 11
-
£3,990 GBP
View
Most Expensive
NZ Jewellers
3c93322e-ca46-4e32-be31-a7e54d3ff1b3 · Sep 19
£4,237 GBP
$5,702 USD
View
Price last confirmed 47 days ago
11 more retailers have this diamond
Prices start from £2,123 GBPSave up to £1,866 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
£2,123 GBP