Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6545064208

Certificate GIA 6545064208

Diamond specifications and retailer prices

From $3,763 USD
As of October 30, 2026
Save $1,789 USD (32%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,243 USD at MOH London · As of October 11, 2026
View at MOH London

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 6545064208. Listed at 16 retailers as of October 30, 2026, with a 48% 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.98°
OriginNatural
Grading LabGIA
CertificateGIA 6545064208
Dimensions7.92 × 6.11 × 4.27 mm
L/W Ratio1.30
Top View
7.92 mm6.11 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545064208
Side View
Table 69.0%Crown 32.98°Girdle: ThickPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $7,243 USD|Low: $3,342 USD|High: $7,958 USD|Avg: $4,529 USD|-8.9%
MOH London
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 8$3,411 USD
Retailer 6$3,578 USD
Retailer 11$3,674 USD
Retailer 7$3,705 USD
Retailer 15$3,763 USD
Retailer 5$3,871 USD
Retailer 12$4,024 USD
Retailer 13$4,120 USD
Retailer 19$4,160 USD
Retailer 17$4,260 USD
Retailer 9$4,565 USD
Retailer 3$4,822 USD
Retailer 10$4,841 USD
Retailer 14$4,910 USD
Retailer 16$4,910 USD
Retailer 18$5,070 USD
Retailer 4$5,197 USD
Retailer 2$5,552 USD
MOH London$7,243 USD

39 data points across 19 retailers

16 retailers$3,763 USD to $5,552 USD

Retailer 1
-
$3,411 USD
Price last confirmed 17 days ago
Retailer 2
-
$3,674 USD
View
Price last confirmed 24 days ago
B+
Retailer 3
-
$3,763 USD
View
Retailer 4
-
$3,871 USD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
$4,024 USD
View
B+
Retailer 6
-
$4,120 USD
CA$5,722 CAD
View
Retailer 7
-
$4,160 USD
£3,276 GBP
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$4,260 USD
View
Retailer 9
-
$4,565 USD
A$7,022 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
$4,841 USD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$4,910 USD
View
B
Retailer 12
-
$4,910 USD
View
B
Retailer 13
-
$5,070 USD
View
Retailer 14
-
$5,197 USD
ZAR 83,957 ZAR
View
Price last confirmed 20 days ago
B
Retailer 15
-
$5,552 USD
£4,372 GBP
View
Most Expensive
MOH London
F8B778ACD · Oct 11
$7,243 USD
£5,703 GBP
View
Price last confirmed 21 days ago
15 more retailers have this diamond
Prices start from $3,763 USDSave up to $1,789 USD

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.

B+
1.50ct Heart
$3,763 USD