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Heart|Natural|HRD

1.53ct I SI2 Heart Natural Diamond

ID • I/SI2 • HRD 250000306035

Shape and cutting style on the report: Heart

Certificate HRD 250000306035

Diamond specifications and retailer prices

From £1,780 GBP
As of November 6, 2026
Save £1,582 GBP (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,033 GBP at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000306035. Listed at 8 retailers as of November 6, 2026, with a 89% 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 250000306035
Dimensions6.63 × 7.92 × 4.84 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
Top View
6.63 mm7.92 mm1.53 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 250000306035
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.0%

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: £4,033 GBP|Low: £1,632 GBP|High: £4,033 GBP|Avg: £2,450 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9£1,780 GBP
Retailer 2£1,812 GBP
Retailer 11£1,875 GBP
Retailer 7£1,929 GBP
Retailer 8£1,929 GBP
Retailer 5£2,018 GBP
Retailer 6£2,226 GBP
Retailer 10£2,455 GBP
Retailer 3£2,832 GBP
Retailer 4£3,361 GBP
NZ Jewellers£4,033 GBP

18 data points across 11 retailers

8 retailers£1,780 GBP to £3,361 GBP

A
Cheapest Retailer
-
£1,780 GBP
Final sale: no returns
A
Retailer 2
-
£1,812 GBP
View
Retailer 3
-
£1,929 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
£1,929 GBP
View
Price last confirmed 13 days ago
Retailer 5
-
£2,018 GBP
View
Price last confirmed 16 days ago
Retailer 6
-
£2,226 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
£3,361 GBP
View
Most Expensive
NZ Jewellers
5c1732a6-8d8e-49c5-b2c7-a53139bdc82f · Oct 24
£4,033 GBP
$5,398 USD
View
Price last confirmed 14 days ago
7 more retailers have this diamond
Prices start from £1,780 GBPSave up to £1,582 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 Heart
£1,780 GBP