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Heart|Natural|GIA

1.50ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6315998437

Certificate GIA 6315998437

Diamond specifications and retailer prices

From $14,481 AUD
As of November 5, 2026
Save $5,047 AUD (26%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $26,039 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct 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 6315998437. Listed at 21 retailers as of November 5, 2026, with a 35% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6315998437
Dimensions7.08 × 7.61 × 4.31 mm
L/W Ratio1.07
Top View
7.08 mm7.61 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6315998437
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 56.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $18,757 AUD|Low: $15,622 AUD|High: $24,694 AUD|Avg: $18,765 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$15,622 AUD
Retailer 8$15,622 AUD
Retailer 2$16,720 AUD
Retailer 5$16,976 AUD
Retailer 7$17,185 AUD
Retailer 1$18,757 AUD
Retailer 3$22,793 AUD
Retailer 4$24,333 AUD

45 data points across 8 retailers

21 retailers$14,481 AUD to $19,529 AUD

B
Cheapest Retailer
-
$14,481 AUD
B
Retailer 2
-
$14,494 AUD
View
B
Retailer 3
-
$14,937 AUD
View
B
Retailer 4
-
$15,427 AUD
View
Retailer 5
-
$15,622 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$15,622 AUD
View
Final sale: no returns
B
Retailer 7
-
$15,753 AUD
View
B
Retailer 8
-
$16,720 AUD
View
B
Retailer 9
-
$16,925 AUD
View
Retailer 10
-
$16,976 AUD
View
Price last confirmed 15 days ago
B
Retailer 11
-
$17,185 AUD
View
B
Retailer 12
-
$18,056 AUD
View
B
Retailer 13
-
$18,236 AUD
View
B
Retailer 14
-
$18,236 AUD
View
B
Retailer 15
-
$18,757 AUD
View
B
Retailer 16
-
$18,847 AUD
View
B
Retailer 17
-
$19,529 AUD
View
Retailer 18
-
$20,553 AUD
View
Price last confirmed 15 days ago
Retailer 19
-
$22,793 AUD
View
Price under review
Retailer 20
-
$24,333 AUD
View
Price under review
Most Expensive
NZ Jewellers
934d253d-5e40-4182-a9c7-06b47d165805 · Nov 5
$26,039 AUD
$17,891 USD
View
Price under review
20 more retailers have this diamond
Prices start from $14,481 AUDSave up to $5,047 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
1.50ct Heart
$14,481 AUD