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Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 2367408735

Certificate GIA 2367408735

Diamond specifications and retailer prices

From $8,473 AUD
HK$46,500 HKD
As of November 1, 2026
Save $10,472 AUD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,945 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2367408735. Listed at 22 retailers as of October 30, 2026, with prices from $8,473 to $18,945, a $10,472 spread on the same certified stone. NZ Jewellers lists it at $18,945. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2367408735
Dimensions6.74 × 8.00 × 4.75 mm
L/W Ratio1.19
Top View
6.74 mm8.00 mm1.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2367408735
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.4%

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: $18,945 AUD|Low: $8,400 AUD|High: $19,418 AUD|Avg: $12,411 AUD|-2.4%
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 15$8,473 AUD
Retailer 19$8,701 AUD
Retailer 4$8,775 AUD
Retailer 3$9,412 AUD
Retailer 11$9,461 AUD
Retailer 6$9,473 AUD
Retailer 7$9,495 AUD
Retailer 16$9,499 AUD
Retailer 5$9,551 AUD
Retailer 9$10,261 AUD
Retailer 8$10,419 AUD
Retailer 2$10,681 AUD
Retailer 12$11,127 AUD
Retailer 10$11,346 AUD
Retailer 18$11,346 AUD
Retailer 20$11,730 AUD
Retailer 17$11,840 AUD
Retailer 14$13,916 AUD
Retailer 13$15,785 AUD
NZ Jewellers$18,945 AUD

41 data points across 20 retailers

22 retailers$8,473 AUD to $18,945 AUD

A
Cheapest Retailer
-
$8,473 AUD
HK$46,500 HKD
A
Retailer 2
-
$8,701 AUD
$6,112 USD
View
A
Retailer 3
-
$8,775 AUD
$6,164 USD
View
B+
Retailer 4
-
$9,412 AUD
CA$9,183 CAD
View
B+
Retailer 5
-
$9,461 AUD
$6,646 USD
View
Final sale: no returns
B+
Retailer 6
-
$9,473 AUD
$6,654 USD
View
B+
Retailer 7
-
$9,495 AUD
$6,670 USD
View
B+
Retailer 8
-
$9,499 AUD
$6,673 USD
View
B+
Retailer 9
-
$9,551 AUD
$6,709 USD
View
B+
Retailer 10
-
$10,261 AUD
$7,208 USD
View
B+
Retailer 11
-
$10,419 AUD
$7,319 USD
View
B+
Retailer 12
-
$10,681 AUD
£5,908 GBP
View
Retailer 13
-
$11,127 AUD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$11,346 AUD
$7,970 USD
View
B+
Retailer 15
-
$11,346 AUD
$7,970 USD
View
B+
Retailer 16
-
$11,714 AUD
$8,229 USD
View
B+
Retailer 17
-
$11,730 AUD
$8,240 USD
View
B+
Retailer 18
-
$11,840 AUD
$8,317 USD
View
Retailer 19
-
$12,788 AUD
$8,983 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
$13,916 AUD
ZAR 157,914 ZAR
View
B
Retailer 21
-
$15,785 AUD
£8,731 GBP
View
Most Expensive
B
NZ Jewellers
e6352072-abf6-4d1e-8db0-feff62e9198d · Oct 30
$18,945 AUD
$13,308 USD
View
21 more retailers have this diamond
Prices start from $8,473 AUDSave up to $10,472 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
$8,473 AUD