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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2546774228

Certificate GIA 2546774228

Diamond specifications and retailer prices

From £2,343 GBP
As of November 6, 2026
Save £2,769 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,375 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 2546774228. Listed at 18 retailers as of November 4, 2026, with a 118% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2546774228
Dimensions7.00 × 7.98 × 4.71 mm
L/W Ratio1.14
Top View
7.00 mm7.98 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546774228
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,463 GBP|Low: £2,333 GBP|High: £5,240 GBP|Avg: £3,142 GBP|-3.3%
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£2,343 GBP
Retailer 1£2,463 GBP
Retailer 7£2,762 GBP
Retailer 11£2,829 GBP
Retailer 3£2,884 GBP
Retailer 4£2,947 GBP
Retailer 5£3,105 GBP
Retailer 10£3,175 GBP
Retailer 2£3,328 GBP
Retailer 6£3,742 GBP
Retailer 8£5,112 GBP

39 data points across 11 retailers

18 retailers£2,343 GBP to £5,112 GBP

A
Cheapest Retailer
-
£2,343 GBP
A
Retailer 2
-
£2,463 GBP
View
B+
Retailer 3
-
£2,762 GBP
View
B+
Retailer 4
-
£2,829 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,882 GBP
View
B+
Retailer 6
-
£2,884 GBP
View
B+
Retailer 7
-
£2,947 GBP
View
Retailer 8
-
£3,085 GBP
View
Price last confirmed 22 days ago
Retailer 9
-
£3,085 GBP
View
Price last confirmed 20 days ago
Retailer 10
-
£3,085 GBP
View
Price last confirmed 22 days ago
B+
Retailer 11
-
£3,105 GBP
View
B+
Retailer 12
-
£3,175 GBP
View
Retailer 13
-
£3,328 GBP
View
Price last confirmed 34 days ago
B
Retailer 14
-
£3,349 GBP
View
Retailer 15
-
£3,559 GBP
View
Price last confirmed 19 days ago
B+
Retailer 16
-
£3,742 GBP
View
B
Retailer 17
-
£5,112 GBP
View
Most Expensive
NZ Jewellers
b9391674-eda2-4e9c-a91c-562b2cbc015c · Oct 18
£5,375 GBP
$7,194 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from £2,343 GBPSave up to £2,769 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
£2,343 GBP