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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5232690820

Certificate GIA 5232690820

Diamond specifications and retailer prices

From $6,675 AUD
$4,678 USD
As of November 2, 2026
Save $5,726 AUD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,401 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 F 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 5232690820. Listed at 9 retailers as of November 2, 2026, with prices from $6,675 to $12,401, a $5,726 spread on the same certified stone. NZ Jewellers lists it at $12,401. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle42.59°
OriginNatural
Grading LabGIA
CertificateGIA 5232690820
Dimensions6.89 × 7.98 × 4.86 mm
L/W Ratio1.16
Top View
6.89 mm7.98 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5232690820
Side View
Table 63.0%Crown 37.1°Girdle: Slightly Thick to Very ThickPavilion 42.59°Culet: NoneDepth 60.9%

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: $12,401 AUD|Low: $6,675 AUD|High: $12,590 AUD|Avg: $8,389 AUD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$6,675 AUD
Retailer 2$6,937 AUD
Retailer 8$6,963 AUD
Retailer 3$7,264 AUD
Retailer 6$7,414 AUD
Retailer 9$7,414 AUD
Retailer 11$7,588 AUD
Retailer 7$7,591 AUD
Retailer 12$8,128 AUD
Retailer 4$8,650 AUD
Retailer 5$11,810 AUD
NZ Jewellers$12,401 AUD

35 data points across 12 retailers

9 retailers$6,675 AUD to $12,401 AUD

A
Cheapest Retailer
-
$6,675 AUD
$4,678 USD
A
Retailer 2
-
$6,937 AUD
£3,828 GBP
View
A
Retailer 3
-
$6,963 AUD
$4,880 USD
View
A
Retailer 4
-
$7,414 AUD
$5,196 USD
View
B+
Retailer 5
-
$7,414 AUD
$5,196 USD
View
Retailer 6
-
$7,588 AUD
View
Price last confirmed 24 days ago
B+
Retailer 7
-
$7,591 AUD
$5,320 USD
View
B
Retailer 8
-
$11,810 AUD
£6,517 GBP
View
Most Expensive
B
NZ Jewellers
92849da8-4f48-4f96-9700-94ee609a272c · Nov 3
$12,401 AUD
$8,691 USD
View
8 more retailers have this diamond
Prices start from $6,675 AUDSave up to $5,726 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
$6,675 AUD