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Heart|Natural|GIA

1.51ct K VS2 Heart Natural Diamond

GD • K/VS2 • GIA 2566156550

Certificate GIA 2566156550

Diamond specifications and retailer prices

From $4,467 AUD
As of November 6, 2026
Save $1,028 AUD (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,494 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 VS2 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566156550. Listed at 6 retailers as of November 5, 2026, with prices from $4,467 to $5,494, a $1,028 spread on the same certified stone. Blue Nile lists it at $5,494. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Colour
VS2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566156550
Dimensions7.24 × 7.91 × 4.38 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.24 mm7.91 mm1.51 ctK / VS2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566156550
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,494 AUD|Low: $4,077 AUD|High: $6,151 AUD|Avg: $5,104 AUD|-10.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$4,467 AUD
Retailer 5$4,622 AUD
Retailer 4$4,707 AUD
Retailer 3$4,938 AUD
Retailer 6$5,381 AUD
Blue Nile$5,494 AUD

46 data points across 6 retailers

6 retailers$4,467 AUD to $5,494 AUD

A
Cheapest Retailer
-
$4,467 AUD
A
Retailer 2
-
$4,622 AUD
View
B+
Retailer 3
-
$4,707 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,938 AUD
View
B+
Retailer 5
-
$5,381 AUD
View
Most Expensive
B+
Blue Nile
30112487 · Nov 5
$5,494 AUD
$3,775 USD
View
5 more retailers have this diamond
Prices start from $4,467 AUDSave up to $1,028 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
$4,467 AUD