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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 7568013726

Certificate GIA 7568013726

Diamond specifications and retailer prices

From $2,775 AUD
As of November 6, 2026
Save $5,020 AUD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,795 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7568013726. Listed at 15 retailers as of November 5, 2026, with prices from $2,775 to $7,795, a $5,020 spread on the same certified stone. NZ Jewellers lists it at $7,795. 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

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568013726
Dimensions6.37 × 7.82 × 4.90 mm
L/W Ratio1.23
Top View
6.37 mm7.82 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568013726
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $7,795 AUD|Low: $2,775 AUD|High: $8,566 AUD|Avg: $4,402 AUD|-9.0%
NZ Jewellers
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
November 6, 2026
Retailer 3$2,775 AUD
Retailer 13$3,368 AUD
Retailer 7$3,435 AUD
Retailer 6$3,604 AUD
Retailer 2$3,716 AUD
Retailer 11$3,729 AUD
Retailer 5$3,852 AUD
Retailer 9$3,860 AUD
Retailer 15$3,900 AUD
Retailer 8$3,932 AUD
Retailer 10$3,946 AUD
Retailer 12$4,036 AUD
Retailer 4$4,302 AUD
Retailer 14$6,514 AUD
NZ Jewellers$7,795 AUD

28 data points across 15 retailers

15 retailers$2,775 AUD to $7,795 AUD

A
Cheapest Retailer
-
$2,775 AUD
A
Retailer 2
-
$3,368 AUD
View
A
Retailer 3
-
$3,435 AUD
View
A
Retailer 4
-
$3,604 AUD
View
A
Retailer 5
-
$3,716 AUD
View
A
Retailer 6
-
$3,729 AUD
View
Retailer 7
-
$3,852 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$3,860 AUD
View
A
Retailer 9
-
$3,900 AUD
View
A
Retailer 10
-
$3,932 AUD
View
A
Retailer 11
-
$3,946 AUD
View
A
Retailer 12
-
$4,036 AUD
View
A
Retailer 13
-
$4,302 AUD
View
B
Retailer 14
-
$6,514 AUD
View
Most Expensive
B
NZ Jewellers
a9b072f7-7dd5-4077-81c6-f9b32936d801 · Nov 5
$7,795 AUD
$5,356 USD
View
14 more retailers have this diamond
Prices start from $2,775 AUDSave up to $5,020 AUD

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
1.51ct Heart
$2,775 AUD