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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 6562053638

Certificate GIA 6562053638

Diamond specifications and retailer prices

From $3,602 AUD
As of November 6, 2026
Save $1,334 AUD (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,936 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562053638. Listed at 5 retailers as of November 6, 2026, with prices from $3,602 to $4,936, a $1,334 spread on the same certified stone. GemTrove lists it at $4,936. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562053638
Dimensions7.22 × 7.82 × 4.59 mm
L/W Ratio1.08
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle, Indented Natural, Natural
Top View
7.22 mm7.82 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562053638
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.7%

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 6
Current: $3,602 AUD|Low: $3,602 AUD|High: $4,823 AUD|Avg: $4,065 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 1$3,602 AUD
Retailer 3$3,703 AUD
Retailer 2$3,976 AUD
Retailer 4$4,288 AUD

46 data points across 4 retailers

5 retailers$3,602 AUD to $4,936 AUD

A
Cheapest Retailer
-
$3,602 AUD
A
Retailer 2
-
$3,703 AUD
View
A
Retailer 3
-
$3,976 AUD
View
A
Retailer 4
-
$4,288 AUD
View
Most Expensive
B+
GemTrove
GT-N-01269523-98 · Nov 6
$4,936 AUD
View
4 more retailers have this diamond
Prices start from $3,602 AUDSave up to $1,334 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
$3,602 AUD