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Heart|Natural|GIA

0.80ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2537540172

Certificate GIA 2537540172

Diamond specifications and retailer prices

From $859 AUD
As of November 5, 2026
Save $1,835 AUD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,694 AUD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 0.8ct natural heart diamond

This 0.8ct natural heart sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2537540172. Listed at 14 retailers as of November 5, 2026, with prices from $859 to $2,694, a $1,835 spread on the same certified stone. NZ Jewellers lists it at $2,694. 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

0.80
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537540172
Dimensions5.45 × 6.32 × 3.83 mm
L/W Ratio1.16
Top View
5.45 mm6.32 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537540172
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.6%

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 5
Current: $2,694 AUD|Low: $859 AUD|High: $2,781 AUD|Avg: $1,273 AUD|-3.1%
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
November 7, 2026
Retailer 13$859 AUD
Retailer 4$926 AUD
Retailer 9$926 AUD
Retailer 2$971 AUD
Retailer 5$991 AUD
Retailer 6$991 AUD
Retailer 11$1,044 AUD
Retailer 12$1,049 AUD
Retailer 8$1,083 AUD
Retailer 14$1,135 AUD
Retailer 7$1,176 AUD
Retailer 3$1,269 AUD
Retailer 10$1,972 AUD
NZ Jewellers$2,694 AUD

24 data points across 14 retailers

14 retailers$859 AUD to $2,694 AUD

A
Cheapest Retailer
-
$859 AUD
A
Retailer 2
-
$926 AUD
View
A
Retailer 3
-
$926 AUD
View
A
Retailer 4
-
$971 AUD
View
A
Retailer 5
-
$991 AUD
View
A
Retailer 6
-
$991 AUD
View
A
Retailer 7
-
$1,044 AUD
View
A
Retailer 8
-
$1,049 AUD
View
A
Retailer 9
-
$1,083 AUD
View
B+
Retailer 10
-
$1,135 AUD
View
A
Retailer 11
-
$1,176 AUD
View
A
Retailer 12
-
$1,269 AUD
View
B+
Retailer 13
-
$1,972 AUD
View
Most Expensive
B
NZ Jewellers
b9fee9c8-b4ca-4da6-bbd9-790bdcde0d82 · Nov 7
$2,694 AUD
$1,851 USD
View
13 more retailers have this diamond
Prices start from $859 AUDSave up to $1,835 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
0.80ct Heart
$859 AUD