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Heart|Natural|GIA

1.51ct K VS1 Heart Natural Diamond

EX • K/VS1 • GIA 6455628874

Certificate GIA 6455628874

Diamond specifications and retailer prices

From $4,750 AUD
As of November 6, 2026
Save $1,233 AUD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,984 AUD at Michael Trio · As of November 6, 2026
View at Michael Trio

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 VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6455628874. Listed at 3 retailers as of November 6, 2026, with prices from $4,750 to $5,984, a $1,233 spread on the same certified stone. Michael Trio lists it at $5,984. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6455628874
Dimensions6.67 × 7.80 × 4.82 mm
L/W Ratio1.17
Top View
6.67 mm7.80 mm1.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455628874
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $5,984 AUD|Low: $4,713 AUD|High: $6,622 AUD|Avg: $5,740 AUD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2$4,750 AUD
Retailer 4$5,629 AUD
Michael Trio$5,984 AUD
Retailer 3$6,622 AUD

3 data points across 4 retailers

3 retailers$4,750 AUD to $5,984 AUD

A
Cheapest Retailer
-
$4,750 AUD
B+
Retailer 2
-
$5,629 AUD
View
Most Expensive
B+
Michael Trio
1700455306 · Nov 6
$5,984 AUD
SGD 5,556 SGD
View
2 more retailers have this diamond
Prices start from $4,750 AUDSave up to $1,233 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
$4,750 AUD