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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5232493398

Certificate GIA 5232493398

Diamond specifications and retailer prices

From $10,846 AUD
$7,601 USD
As of November 1, 2026
Save $12,464 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $23,310 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 G 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 5232493398. Listed at 16 retailers as of November 1, 2026, with prices from $10,846 to $23,310, a $12,464 spread on the same certified stone. NZ Jewellers lists it at $23,310. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5232493398
Dimensions7.25 × 8.28 × 4.51 mm
L/W Ratio1.14
Top View
7.25 mm8.28 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232493398
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 54.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,310 AUD|Low: $10,913 AUD|High: $23,310 AUD|Avg: $14,795 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
November 3, 2026
Retailer 8$10,913 AUD
Retailer 12$11,655 AUD
Retailer 10$11,752 AUD
Retailer 11$12,627 AUD
Retailer 9$12,821 AUD
Retailer 7$12,877 AUD
Retailer 2$13,016 AUD
Retailer 3$14,569 AUD
Retailer 4$15,343 AUD
Retailer 6$17,122 AUD
Retailer 5$19,423 AUD
NZ Jewellers$23,310 AUD

45 data points across 12 retailers

16 retailers$10,846 AUD to $23,310 AUD

B+
Cheapest Retailer
-
$10,846 AUD
$7,601 USD
B+
Retailer 2
-
$10,913 AUD
$7,648 USD
View
B
Retailer 3
-
$11,455 AUD
CA$11,150 CAD
View
B
Retailer 4
-
$11,594 AUD
$8,125 USD
View
B
Retailer 5
-
$11,655 AUD
$8,168 USD
View
B
Retailer 6
-
$11,752 AUD
$8,236 USD
View
B
Retailer 7
-
$12,627 AUD
$8,849 USD
View
B
Retailer 8
-
$12,821 AUD
$8,985 USD
View
Retailer 9
-
$12,877 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$13,016 AUD
£7,183 GBP
View
B
Retailer 11
-
$13,397 AUD
$9,389 USD
View
B
Retailer 12
-
$14,569 AUD
$10,210 USD
View
Retailer 13
-
$15,343 AUD
$10,753 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$17,122 AUD
ZAR 193,853 ZAR
View
B
Retailer 15
-
$19,423 AUD
£10,718 GBP
View
Most Expensive
B
NZ Jewellers
63285d76-08ad-4533-9be1-d0263cd1875d · Nov 3
$23,310 AUD
$16,336 USD
View
15 more retailers have this diamond
Prices start from $10,846 AUDSave up to $12,464 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.

B+
1.51ct Heart
$10,846 AUD