Heart|Natural|GIA

1.50ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6545440465

Certificate GIA 6545440465

Diamond specifications and retailer prices

From $3,724 USD
As of November 6, 2026
Save $4,091 USD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,630 USD 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 H 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 6545440465. Listed at 20 retailers as of November 4, 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6545440465
Dimensions6.84 × 7.83 × 4.84 mm
L/W Ratio1.14
Top View
6.84 mm7.83 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545440465
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.7%

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: $3,957 USD|Low: $3,712 USD|High: $8,017 USD|Avg: $4,985 USD|-3.5%
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 6, 2026
Retailer 11$3,724 USD
Retailer 1$3,957 USD
Retailer 8$4,332 USD
Retailer 7$4,442 USD
Retailer 12$4,541 USD
Retailer 3$4,769 USD
Retailer 5$4,844 USD
Retailer 10$4,990 USD
Retailer 4$5,027 USD
Retailer 2$5,120 USD
Retailer 6$6,003 USD
Retailer 9$7,815 USD

35 data points across 12 retailers

20 retailers$3,724 USD to $7,815 USD

A
Cheapest Retailer
-
$3,724 USD
A
Retailer 2
-
$3,957 USD
View
B+
Retailer 3
-
$4,332 USD
View
B+
Retailer 4
-
$4,442 USD
View
B+
Retailer 5
-
$4,541 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,593 USD
View
B+
Retailer 7
-
$4,595 USD
View
Retailer 8
-
$4,769 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$4,844 USD
View
B+
Retailer 10
-
$4,847 USD
View
Retailer 11
-
$4,954 USD
View
Price last confirmed 22 days ago
Retailer 12
-
$4,954 USD
View
Price last confirmed 22 days ago
Retailer 13
-
$4,954 USD
View
Price last confirmed 20 days ago
B+
Retailer 14
-
$4,990 USD
View
Retailer 15
-
$5,027 USD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$5,120 USD
View
Retailer 17
-
$5,716 USD
View
Price last confirmed 19 days ago
B+
Retailer 18
-
$6,003 USD
View
B
Retailer 19
-
$7,815 USD
View
Most Expensive
NZ Jewellers
d6970c97-a6e6-4f22-a4fb-556d1d22f0ac · Oct 18
$8,630 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $3,724 USDSave up to $4,091 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.

A
1.50ct Heart
$3,724 USD