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Heart|Natural|GIA

1.53ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 2554629221

Certificate GIA 2554629221

Diamond specifications and retailer prices

From £2,283 GBP
HK$23,900 HKD
As of November 1, 2026
Save £2,756 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,796 GBP at NZ Jewellers · As of September 25, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554629221. Listed at 17 retailers as of November 1, 2026, with a 121% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554629221
Dimensions6.66 × 7.92 × 4.74 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.66 mm7.92 mm1.53 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554629221
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.8%

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 1
Current: £4,112 GBP|Low: £2,266 GBP|High: £5,280 GBP|Avg: £3,232 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 14£2,283 GBP
Retailer 13£2,295 GBP
Retailer 10£2,432 GBP
Retailer 4£2,469 GBP
Retailer 8£2,554 GBP
Retailer 6£2,653 GBP
Retailer 12£2,698 GBP
Retailer 11£2,851 GBP
Retailer 9£3,125 GBP
Retailer 3£3,138 GBP
Retailer 7£3,503 GBP
Retailer 2£3,755 GBP
Retailer 1£4,112 GBP
Retailer 5£4,763 GBP
Retailer 15£5,039 GBP

30 data points across 15 retailers

17 retailers£2,283 GBP to £5,039 GBP

A
Cheapest Retailer
-
£2,283 GBP
HK$23,900 HKD
A
Retailer 2
-
£2,295 GBP
$3,075 USD
View
A
Retailer 3
-
£2,432 GBP
$3,259 USD
View
A
Retailer 4
-
£2,469 GBP
$3,308 USD
View
A
Retailer 5
-
£2,554 GBP
$3,422 USD
View
Final sale: no returns
A
Retailer 6
-
£2,653 GBP
$3,555 USD
View
A
Retailer 7
-
£2,698 GBP
A$5,561 AUD
View
B+
Retailer 8
-
£2,851 GBP
$3,820 USD
View
B+
Retailer 9
-
£3,125 GBP
View
B+
Retailer 10
-
£3,138 GBP
$4,205 USD
View
B+
Retailer 11
-
£3,298 GBP
A$6,798 AUD
View
Retailer 12
-
£3,503 GBP
A$7,222 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
£3,755 GBP
ZAR 81,284 ZAR
View
B+
Retailer 14
-
£4,112 GBP
$5,510 USD
View
B
Retailer 15
-
£4,763 GBP
$6,382 USD
View
B
Retailer 16
-
£5,039 GBP
View
Most Expensive
NZ Jewellers
82c7d4b0-621c-4edc-a9b1-cac6e51f1904 · Sep 25
£5,796 GBP
$7,766 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from £2,283 GBPSave up to £2,756 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
£2,283 GBP