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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6545064208

Certificate GIA 6545064208

Diamond specifications and retailer prices

From $6,688 NZD
$3,763 USD
As of November 1, 2026
Save $3,180 NZD (32%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,873 NZD 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 15 retailers as of November 1, 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,873 NZD|Low: $5,940 NZD|High: $14,143 NZD|Avg: $8,047 NZD|-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 2, 2026
Retailer 8$6,062 NZD
Retailer 6$6,359 NZD
Retailer 11$6,530 NZD
Retailer 7$6,585 NZD
Retailer 15$6,688 NZD
Retailer 5$6,880 NZD
Retailer 12$7,152 NZD
Retailer 13$7,322 NZD
Retailer 19$7,394 NZD
Retailer 17$7,572 NZD
Retailer 9$8,113 NZD
Retailer 3$8,569 NZD
Retailer 10$8,604 NZD
Retailer 14$8,727 NZD
Retailer 16$8,727 NZD
Retailer 18$9,011 NZD
Retailer 4$9,237 NZD
Retailer 2$9,868 NZD
MOH London$12,873 NZD

40 data points across 19 retailers

15 retailers$6,688 NZD to $9,868 NZD

Retailer 1
-
$6,062 NZD
$3,411 USD
Price last confirmed 18 days ago
Retailer 2
-
$6,530 NZD
$3,674 USD
View
Price last confirmed 25 days ago
B+
Retailer 3
-
$6,688 NZD
$3,763 USD
View
Retailer 4
-
$6,880 NZD
$3,871 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$7,152 NZD
$4,024 USD
View
B+
Retailer 6
-
$7,322 NZD
CA$5,722 CAD
View
B+
Retailer 7
-
$7,572 NZD
$4,260 USD
View
Retailer 8
-
$8,113 NZD
A$7,022 AUD
View
Price last confirmed 23 days ago
Retailer 9
-
$8,604 NZD
$4,841 USD
View
Price last confirmed 20 days ago
B
Retailer 10
-
$8,727 NZD
$4,910 USD
View
B
Retailer 11
-
$8,727 NZD
$4,910 USD
View
B
Retailer 12
-
$9,011 NZD
$5,070 USD
View
Retailer 13
-
$9,237 NZD
ZAR 83,957 ZAR
View
Price last confirmed 21 days ago
B
Retailer 14
-
$9,868 NZD
£4,372 GBP
View
Most Expensive
MOH London
F8B778ACD · Oct 11
$12,873 NZD
£5,703 GBP
View
Price last confirmed 22 days ago
14 more retailers have this diamond
Prices start from $6,688 NZDSave up to $3,180 NZD

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
$6,688 NZD