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Heart|Natural|GIA

1.55ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 7531798267

Certificate GIA 7531798267

Diamond specifications and retailer prices

From £1,965 GBP
HK$20,600 HKD
As of November 1, 2026
Save £2,342 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,487 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7531798267. Listed at 18 retailers as of November 1, 2026, with a 119% 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

1.55
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7531798267
Dimensions8.26 × 7.43 × 4.50 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity, Needle
Top View
8.26 mm7.43 mm1.55 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7531798267
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 54.5%

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 1
Current: £2,103 GBP|Low: £1,946 GBP|High: £4,393 GBP|Avg: £2,671 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8£1,965 GBP
Retailer 9£1,983 GBP
Retailer 1£2,103 GBP
Retailer 4£2,427 GBP
Retailer 3£2,429 GBP
Retailer 10£2,683 GBP
Retailer 5£2,692 GBP
Retailer 11£2,729 GBP
Retailer 12£2,735 GBP
Retailer 2£2,783 GBP
Retailer 7£3,166 GBP
Retailer 6£4,307 GBP

40 data points across 12 retailers

18 retailers£1,965 GBP to £4,307 GBP

A
Cheapest Retailer
-
£1,965 GBP
HK$20,600 HKD
A
Retailer 2
-
£1,983 GBP
SGD 3,596 SGD
View
A
Retailer 3
-
£2,103 GBP
₹268,749 INR
View
B+
Retailer 4
-
£2,427 GBP
$3,257 USD
View
B+
Retailer 5
-
£2,429 GBP
$3,260 USD
View
Retailer 6
-
£2,575 GBP
$3,456 USD
View
Price last confirmed 15 days ago
Retailer 7
-
£2,575 GBP
$3,456 USD
View
Price last confirmed 17 days ago
Retailer 8
-
£2,674 GBP
$3,589 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
£2,683 GBP
$3,601 USD
View
B+
Retailer 10
-
£2,692 GBP
View
B+
Retailer 11
-
£2,702 GBP
A$5,578 AUD
View
B+
Retailer 12
-
£2,729 GBP
SGD 4,949 SGD
View
B+
Retailer 13
-
£2,735 GBP
$3,670 USD
View
Retailer 14
-
£2,783 GBP
A$5,746 AUD
View
Price last confirmed 29 days ago
Retailer 15
-
£2,972 GBP
$3,988 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
£3,166 GBP
ZAR 68,630 ZAR
View
B
Retailer 17
-
£4,307 GBP
View
Most Expensive
NZ Jewellers
dca59de9-155e-4df7-8d92-64b7c9de82d8 · Oct 18
£4,487 GBP
$6,021 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from £1,965 GBPSave up to £2,342 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
1.55ct Heart
£1,965 GBP