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Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 2536656053

Certificate GIA 2536656053

Diamond specifications and retailer prices

From $6,645 AUD
As of November 4, 2026
Save $7,423 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,068 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2536656053. Listed at 16 retailers as of November 4, 2026, with prices from $6,645 to $14,068, a $7,423 spread on the same certified stone. NZ Jewellers lists it at $14,068. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.52°
Pavilion angle43.36°
OriginNatural
Grading LabGIA
CertificateGIA 2536656053
Dimensions7.91 × 6.95 × 4.73 mm
L/W Ratio1.14
Top View
7.91 mm6.95 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2536656053
Side View
Table 58.0%Crown 35.52°Girdle: STK-VTKPavilion 43.36°Culet: NoneDepth 59.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $14,068 AUD|Low: $5,862 AUD|High: $14,068 AUD|Avg: $8,918 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$7,034 AUD
Retailer 6$7,620 AUD
Retailer 8$7,620 AUD
Retailer 9$7,620 AUD
Retailer 2$7,882 AUD
Retailer 7$7,999 AUD
Retailer 3$8,076 AUD
Retailer 10$8,529 AUD
Retailer 4$12,359 AUD
NZ Jewellers$14,068 AUD

42 data points across 10 retailers

16 retailers$6,645 AUD to $14,068 AUD

A
Cheapest Retailer
-
$6,645 AUD
A
Retailer 2
-
$7,034 AUD
View
Final sale: no returns
A
Retailer 3
-
$7,092 AUD
View
B+
Retailer 4
-
$7,620 AUD
View
B+
Retailer 5
-
$7,620 AUD
View
Retailer 6
-
$7,620 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$7,882 AUD
View
B+
Retailer 8
-
$7,999 AUD
View
B+
Retailer 9
-
$8,076 AUD
View
B+
Retailer 10
-
$8,529 AUD
View
B+
Retailer 11
-
$8,529 AUD
View
B+
Retailer 12
-
$8,792 AUD
View
B+
Retailer 13
-
$8,805 AUD
View
Retailer 14
-
$9,280 AUD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$12,359 AUD
View
Most Expensive
B
NZ Jewellers
528a9cc3-07a9-4b8d-9681-79e7814dd6f0 · Nov 5
$14,068 AUD
$9,666 USD
View
15 more retailers have this diamond
Prices start from $6,645 AUDSave up to $7,423 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
$6,645 AUD