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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7558360360

Certificate GIA 7558360360

Diamond specifications and retailer prices

From $4,271 AUD
$2,993 USD
As of November 2, 2026
Save $7,809 AUD (65%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,080 AUD at NZ Jewellers · As of November 3, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558360360. Listed at 16 retailers as of November 2, 2026, with prices from $4,271 to $12,080, a $7,809 spread on the same certified stone. NZ Jewellers lists it at $12,080. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.8°
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558360360
Dimensions6.86 × 7.72 × 4.60 mm
L/W Ratio1.13
Culet sizeNone
Top View
6.86 mm7.72 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558360360
Side View
Table 57.0%Crown 40.8°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 59.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $12,080 AUD|Low: $3,526 AUD|High: $12,080 AUD|Avg: $5,208 AUD
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 3, 2026
Retailer 3$3,529 AUD
Retailer 7$3,815 AUD
Retailer 5$4,038 AUD
Retailer 10$4,154 AUD
Retailer 12$4,271 AUD
Retailer 6$4,432 AUD
Retailer 9$4,509 AUD
Retailer 4$4,783 AUD
Retailer 11$5,384 AUD
Retailer 18$6,047 AUD
Retailer 20$6,247 AUD
Retailer 19$6,401 AUD
Retailer 8$6,514 AUD
Retailer 14$6,717 AUD
Retailer 2$6,933 AUD
Retailer 15$6,933 AUD
Retailer 17$7,149 AUD
Retailer 13$8,001 AUD
Retailer 16$11,043 AUD
NZ Jewellers$12,080 AUD

21 data points across 20 retailers

16 retailers$4,271 AUD to $12,080 AUD

Retailer 1
-
$4,154 AUD
SGD 3,934 SGD
Price last confirmed 29 days ago
A
Retailer 2
-
$4,271 AUD
$2,993 USD
View
Retailer 3
-
$4,432 AUD
$3,106 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$4,509 AUD
$3,160 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$6,047 AUD
$4,238 USD
View
A
Retailer 6
-
$6,247 AUD
$4,378 USD
View
Retailer 7
-
$6,247 AUD
$4,378 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$6,401 AUD
$4,486 USD
View
Final sale: no returns
Retailer 9
-
$6,514 AUD
$4,565 USD
View
Price last confirmed 31 days ago
A
Retailer 10
-
$6,717 AUD
£3,707 GBP
View
B+
Retailer 11
-
$6,933 AUD
$4,859 USD
View
B+
Retailer 12
-
$6,933 AUD
$4,859 USD
View
B+
Retailer 13
-
$7,149 AUD
$5,010 USD
View
B+
Retailer 14
-
$8,001 AUD
$5,607 USD
View
B
Retailer 15
-
$11,043 AUD
£6,094 GBP
View
Most Expensive
B
NZ Jewellers
bc587d9e-cdd3-49ad-96fe-358d28ec1db7 · Nov 3
$12,080 AUD
$8,466 USD
View
15 more retailers have this diamond
Prices start from $4,271 AUDSave up to $7,809 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
$4,271 AUD