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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 7558902646

Certificate GIA 7558902646

Diamond specifications and retailer prices

From $5,822 AUD
$4,080 USD
As of November 1, 2026
Save $7,652 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,474 AUD at NZ Jewellers · As of October 30, 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 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 7558902646. Listed at 17 retailers as of October 30, 2026, with prices from $5,822 to $13,474, a $7,652 spread on the same certified stone. NZ Jewellers lists it at $13,474. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558902646
Dimensions8.10 × 6.90 × 4.73 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
8.10 mm6.90 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558902646
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.4%

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 1
Current: $13,474 AUD|Low: $5,822 AUD|High: $13,474 AUD|Avg: $8,356 AUD|+1.0%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 7$5,822 AUD
Retailer 8$6,117 AUD
Retailer 9$7,192 AUD
Retailer 15$7,299 AUD
Retailer 16$7,299 AUD
Retailer 17$7,299 AUD
Retailer 11$7,303 AUD
Retailer 2$7,591 AUD
Retailer 18$7,670 AUD
Retailer 4$8,176 AUD
Retailer 5$8,176 AUD
Retailer 10$8,267 AUD
Retailer 14$8,422 AUD
Retailer 6$8,447 AUD
Retailer 19$8,888 AUD
Retailer 12$9,114 AUD
Retailer 13$9,902 AUD
Retailer 3$12,899 AUD
NZ Jewellers$13,474 AUD

29 data points across 19 retailers

17 retailers$5,822 AUD to $13,474 AUD

A
Cheapest Retailer
-
$5,822 AUD
$4,080 USD
A
Retailer 2
-
$6,117 AUD
$4,287 USD
View
B+
Retailer 3
-
$7,192 AUD
$5,040 USD
View
B+
Retailer 4
-
$7,299 AUD
$5,115 USD
View
B+
Retailer 5
-
$7,299 AUD
$5,115 USD
View
B+
Retailer 6
-
$7,591 AUD
£4,189 GBP
View
B+
Retailer 7
-
$7,670 AUD
$5,375 USD
View
B+
Retailer 8
-
$7,999 AUD
$5,606 USD
View
B+
Retailer 9
-
$8,176 AUD
$5,730 USD
View
B+
Retailer 10
-
$8,176 AUD
$5,730 USD
View
B+
Retailer 11
-
$8,267 AUD
$5,794 USD
View
B
Retailer 12
-
$8,422 AUD
$5,902 USD
View
B
Retailer 13
-
$8,447 AUD
$5,920 USD
View
B+
Retailer 14
-
$9,114 AUD
€6,083 EUR
View
B
Retailer 15
-
$9,902 AUD
ZAR 112,114 ZAR
View
B
Retailer 16
-
$12,899 AUD
£7,118 GBP
View
Most Expensive
B
NZ Jewellers
e47d9d5f-ffb1-457d-896a-4ff81f37f967 · Oct 30
$13,474 AUD
$9,443 USD
View
16 more retailers have this diamond
Prices start from $5,822 AUDSave up to $7,652 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
$5,822 AUD