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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5536874543

Certificate GIA 5536874543

Diamond specifications and retailer prices

From $4,399 AUD
₹293,621 INR
As of November 2, 2026
Save $5,698 AUD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,097 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 5536874543. Listed at 19 retailers as of October 30, 2026, with prices from $4,399 to $10,097, a $5,698 spread on the same certified stone. NZ Jewellers lists it at $10,097. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5536874543
Dimensions7.80 × 6.95 × 4.69 mm
L/W Ratio1.12
Top View
7.80 mm6.95 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536874543
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 60.0%

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: $10,097 AUD|Low: $4,390 AUD|High: $10,097 AUD|Avg: $6,181 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 2, 2026
Retailer 13$4,399 AUD
Retailer 8$4,605 AUD
Retailer 17$5,020 AUD
Retailer 10$5,098 AUD
Retailer 3$5,407 AUD
Retailer 14$5,460 AUD
Retailer 5$5,522 AUD
Retailer 6$5,795 AUD
Retailer 9$5,795 AUD
Retailer 19$5,795 AUD
Retailer 15$5,928 AUD
Retailer 7$6,005 AUD
Retailer 12$6,133 AUD
Retailer 18$6,146 AUD
Retailer 20$6,393 AUD
Retailer 11$6,409 AUD
Retailer 4$6,686 AUD
Retailer 16$7,123 AUD
Retailer 2$9,691 AUD
NZ Jewellers$10,097 AUD

24 data points across 20 retailers

19 retailers$4,399 AUD to $10,097 AUD

A
Cheapest Retailer
-
$4,399 AUD
₹293,621 INR
A
Retailer 2
-
$4,605 AUD
$3,227 USD
View
Final sale: no returns
A
Retailer 3
-
$4,948 AUD
$3,468 USD
View
A
Retailer 4
-
$5,020 AUD
$3,518 USD
View
A
Retailer 5
-
$5,098 AUD
$3,573 USD
View
A
Retailer 6
-
$5,407 AUD
$3,789 USD
View
A
Retailer 7
-
$5,460 AUD
£3,013 GBP
View
A
Retailer 8
-
$5,522 AUD
$3,870 USD
View
A
Retailer 9
-
$5,795 AUD
$4,061 USD
View
A
Retailer 10
-
$5,795 AUD
$4,061 USD
View
A
Retailer 11
-
$5,795 AUD
$4,061 USD
View
A
Retailer 12
-
$5,928 AUD
£3,271 GBP
View
A
Retailer 13
-
$6,005 AUD
$4,209 USD
View
B+
Retailer 14
-
$6,146 AUD
$4,307 USD
View
B+
Retailer 15
-
$6,393 AUD
$4,480 USD
View
B+
Retailer 16
-
$6,686 AUD
$4,686 USD
View
B+
Retailer 17
-
$7,123 AUD
ZAR 80,648 ZAR
View
B
Retailer 18
-
$9,691 AUD
£5,348 GBP
View
Most Expensive
B
NZ Jewellers
9d7b34f9-47f0-45e8-b228-c6f318744f89 · Oct 30
$10,097 AUD
$7,076 USD
View
18 more retailers have this diamond
Prices start from $4,399 AUDSave up to $5,698 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
$4,399 AUD