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Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

VG • F/SI2 • GIA 6412345960

Certificate GIA 6412345960

Diamond specifications and retailer prices

From $6,883 AUD
As of November 5, 2026
Save $6,061 AUD (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,944 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6412345960. Listed at 18 retailers as of November 4, 2026, with prices from $6,883 to $12,944, a $6,061 spread on the same certified stone. MOH London lists it at $12,944. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6412345960
Dimensions6.66 × 6.14 × 4.27 mm
L/W Ratio1.08
Top View
6.66 mm6.14 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6412345960
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.6%

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 5
Current: $12,944 AUD|Low: $6,065 AUD|High: $13,730 AUD|Avg: $8,710 AUD|-4.6%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 6$6,883 AUD
Retailer 4$6,960 AUD
Retailer 14$6,961 AUD
Retailer 3$7,049 AUD
Retailer 7$7,367 AUD
Retailer 13$7,888 AUD
Retailer 15$8,123 AUD
Retailer 9$8,342 AUD
Retailer 16$8,418 AUD
Retailer 2$8,489 AUD
Retailer 11$8,508 AUD
Retailer 8$8,718 AUD
Retailer 17$8,718 AUD
Retailer 5$9,009 AUD
Retailer 10$9,386 AUD
Retailer 12$12,764 AUD
MOH London$12,944 AUD

43 data points across 17 retailers

18 retailers$6,883 AUD to $12,944 AUD

A
Cheapest Retailer
-
$6,883 AUD
A
Retailer 2
-
$6,960 AUD
View
A
Retailer 3
-
$6,961 AUD
View
B+
Retailer 4
-
$7,049 AUD
View
B+
Retailer 5
-
$7,367 AUD
View
Final sale: no returns
B+
Retailer 6
-
$7,888 AUD
View
B+
Retailer 7
-
$8,123 AUD
View
Retailer 8
-
$8,342 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
$8,363 AUD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$8,418 AUD
View
Retailer 11
-
$8,489 AUD
View
B+
Retailer 12
-
$8,508 AUD
View
B+
Retailer 13
-
$8,718 AUD
View
B+
Retailer 14
-
$8,718 AUD
View
B
Retailer 15
-
$9,009 AUD
View
B+
Retailer 16
-
$9,386 AUD
View
B
Retailer 17
-
$12,764 AUD
View
Most Expensive
B
MOH London
25A61F4AB · Nov 4
$12,944 AUD
£7,003 GBP
View
17 more retailers have this diamond
Prices start from $6,883 AUDSave up to $6,061 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
$6,883 AUD