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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1537168777

Certificate GIA 1537168777

Diamond specifications and retailer prices

From £2,486 GBP
As of November 6, 2026
Save £2,737 GBP (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,714 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct 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 1537168777. Listed at 19 retailers as of November 1, 2026, with a 110% 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

1.50
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1537168777
Dimensions8.24 × 7.23 × 4.54 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Cloud, Needle
Top View
8.24 mm7.23 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1537168777
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.0%

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: £2,615 GBP|Low: £2,457 GBP|High: £5,304 GBP|Avg: £3,364 GBP|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£2,486 GBP
Retailer 1£2,615 GBP
Retailer 7£2,936 GBP
Retailer 11£3,009 GBP
Retailer 4£3,136 GBP
Retailer 5£3,302 GBP
Retailer 8£3,362 GBP
Retailer 10£3,371 GBP
Retailer 3£3,519 GBP
Retailer 6£3,978 GBP
Retailer 2£5,224 GBP

34 data points across 11 retailers

19 retailers£2,486 GBP to £5,224 GBP

A
Cheapest Retailer
-
£2,486 GBP
A
Retailer 2
-
£2,615 GBP
View
B+
Retailer 3
-
£2,936 GBP
View
B+
Retailer 4
-
£3,009 GBP
View
Final sale: no returns
B+
Retailer 5
-
£3,036 GBP
View
B+
Retailer 6
-
£3,037 GBP
View
B+
Retailer 7
-
£3,136 GBP
View
Retailer 8
-
£3,280 GBP
View
Price last confirmed 22 days ago
Retailer 9
-
£3,280 GBP
View
Price last confirmed 22 days ago
Retailer 10
-
£3,280 GBP
View
Price last confirmed 20 days ago
B+
Retailer 11
-
£3,302 GBP
View
B+
Retailer 12
-
£3,362 GBP
View
B+
Retailer 13
-
£3,371 GBP
View
B
Retailer 14
-
£3,423 GBP
View
Retailer 15
-
£3,519 GBP
View
Price last confirmed 29 days ago
Retailer 16
-
£3,784 GBP
View
Price last confirmed 19 days ago
B
Retailer 17
-
£3,978 GBP
View
B
Retailer 18
-
£5,224 GBP
View
Most Expensive
NZ Jewellers
a130a7da-e239-47a1-afaa-8a84ba7a6ba9 · Oct 18
£5,714 GBP
$7,648 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from £2,486 GBPSave up to £2,737 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
1.50ct Heart
£2,486 GBP