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Heart|Natural|GIA

1.51ct I VS1 Heart Natural Diamond

EX • I/VS1 • GIA 3465403498

Certificate GIA 3465403498

Diamond specifications and retailer prices

From $9,128 AUD
As of November 5, 2026
Save $3,061 AUD (25%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,173 AUD at NZ Jewellers · As of September 30, 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 3465403498. Listed at 17 retailers as of November 5, 2026, with a 34% 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
FluorescenceFaint
Crown angle48.52°
Pavilion angle38.81°
OriginNatural
Grading LabGIA
CertificateGIA 3465403498
Dimensions7.68 × 6.96 × 4.24 mm
L/W Ratio1.10
Top View
7.68 mm6.96 mm1.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3465403498
Side View
Table 60.0%Crown 48.52°Girdle: STK-VTKPavilion 38.81°Culet: NoneDepth 60.9%

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: $12,189 AUD|Low: $8,878 AUD|High: $17,855 AUD|Avg: $12,007 AUD|+6.9%
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
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 9$9,128 AUD
Retailer 14$9,705 AUD
Retailer 10$9,804 AUD
Retailer 7$9,913 AUD
Retailer 5$10,573 AUD
Retailer 11$10,879 AUD
Retailer 6$11,276 AUD
Retailer 4$11,789 AUD
Retailer 17$11,789 AUD
Retailer 15$12,112 AUD
Retailer 16$12,182 AUD
Retailer 1$12,189 AUD
Retailer 8$12,700 AUD
Retailer 12$13,714 AUD
Retailer 3$13,941 AUD
Retailer 2$15,263 AUD
Retailer 13$17,808 AUD

40 data points across 17 retailers

17 retailers$9,128 AUD to $12,189 AUD

A
Cheapest Retailer
-
$9,128 AUD
B+
Retailer 2
-
$9,790 AUD
View
B+
Retailer 3
-
$9,804 AUD
View
Retailer 4
-
$10,587 AUD
View
Price last confirmed 30 days ago
B+
Retailer 5
-
$10,879 AUD
View
Retailer 6
-
$11,469 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$11,646 AUD
View
Price last confirmed 37 days ago
B
Retailer 8
-
$11,789 AUD
View
B
Retailer 9
-
$11,789 AUD
View
Retailer 10
-
$12,112 AUD
View
Price last confirmed 34 days ago
B+
Retailer 11
-
$12,182 AUD
View
B+
Retailer 12
-
$12,189 AUD
View
Retailer 13
-
$13,234 AUD
View
Price last confirmed 39 days ago
Retailer 14
-
$13,941 AUD
View
Price last confirmed 30 days ago
Retailer 15
-
$15,263 AUD
View
Price last confirmed 38 days ago
Retailer 16
-
$17,808 AUD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
200836b7-ca91-475c-a2d9-27f7859fb0db · Sep 30
$21,173 AUD
$14,548 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $9,128 AUDSave up to $3,061 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
$9,128 AUD