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Heart|Natural|GIA

1.51ct I VS1 Heart Natural Diamond

EX • I/VS1 • GIA 7551434859

Certificate GIA 7551434859

Diamond specifications and retailer prices

From $6,631 AUD
As of November 6, 2026
Save $7,260 AUD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,856 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551434859. Listed at 16 retailers as of November 6, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551434859
Dimensions7.10 × 7.83 × 4.64 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
7.10 mm7.83 mm1.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551434859
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

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: $7,510 AUD|Low: $6,538 AUD|High: $14,465 AUD|Avg: $9,288 AUD|-7.3%
Retailer 1
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 6, 2026
Retailer 2$6,631 AUD
Retailer 4$7,459 AUD
Retailer 1$7,510 AUD
Retailer 5$7,749 AUD
Retailer 10$8,037 AUD
Retailer 3$8,093 AUD
Retailer 13$8,172 AUD
Retailer 8$8,418 AUD
Retailer 6$8,647 AUD
Retailer 12$8,989 AUD
Retailer 7$9,526 AUD
Retailer 9$10,699 AUD
Retailer 14$12,918 AUD
Retailer 11$13,890 AUD

25 data points across 14 retailers

16 retailers$6,631 AUD to $13,890 AUD

A
Cheapest Retailer
-
$6,631 AUD
A
Retailer 2
-
$7,459 AUD
View
A
Retailer 3
-
$7,510 AUD
View
Retailer 4
-
$7,749 AUD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$8,037 AUD
View
A
Retailer 6
-
$8,093 AUD
View
Final sale: no returns
A
Retailer 7
-
$8,172 AUD
View
A
Retailer 8
-
$8,418 AUD
View
A
Retailer 9
-
$8,647 AUD
View
A
Retailer 10
-
$8,989 AUD
View
B+
Retailer 11
-
$9,526 AUD
View
Retailer 12
-
$9,549 AUD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
$10,699 AUD
View
B+
Retailer 14
-
$12,918 AUD
View
B
Retailer 15
-
$13,890 AUD
View
Most Expensive
NZ Jewellers
2e14e3a7-394d-4d1d-936a-168952996b64 · Sep 25
$16,856 AUD
$11,582 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $6,631 AUDSave up to $7,260 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
$6,631 AUD