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Heart|Natural|GIA

1.51ct E I1 Heart Natural Diamond

ID • E/I1 • GIA 6551320471

Certificate GIA 6551320471

Diamond specifications and retailer prices

From $3,517 AUD
HK$19,300 HKD
As of November 1, 2026
Save $4,706 AUD (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,223 AUD at NZ Jewellers · As of October 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 E colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551320471. Listed at 10 retailers as of October 30, 2026, with prices from $3,517 to $8,223, a $4,706 spread on the same certified stone. NZ Jewellers lists it at $8,223. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
I1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551320471
Dimensions7.12 × 7.88 × 4.74 mm
L/W Ratio1.11
Top View
7.12 mm7.88 mm1.51 ctE / I1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551320471
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 60.2%

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 1
Current: $8,223 AUD|Low: $3,499 AUD|High: $9,581 AUD|Avg: $5,713 AUD|-14.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2$3,517 AUD
Retailer 8$4,190 AUD
Retailer 7$4,321 AUD
Retailer 4$4,719 AUD
Retailer 6$4,719 AUD
Retailer 5$4,901 AUD
Retailer 9$5,445 AUD
Retailer 3$5,525 AUD
Retailer 10$7,100 AUD
NZ Jewellers$8,223 AUD

29 data points across 10 retailers

10 retailers$3,517 AUD to $8,223 AUD

A
Cheapest Retailer
-
$3,517 AUD
HK$19,300 HKD
A
Retailer 2
-
$4,190 AUD
$2,943 USD
View
A
Retailer 3
-
$4,321 AUD
$3,035 USD
View
A
Retailer 4
-
$4,719 AUD
$3,315 USD
View
A
Retailer 5
-
$4,719 AUD
$3,315 USD
View
Retailer 6
-
$4,876 AUD
$3,425 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
$4,901 AUD
$3,443 USD
View
A
Retailer 8
-
$5,445 AUD
$3,825 USD
View
A
Retailer 9
-
$5,525 AUD
€3,696 EUR
View
Most Expensive
B+
NZ Jewellers
efb4d925-9161-44f2-9e2e-81b63306a6aa · Oct 30
$8,223 AUD
$5,776 USD
View
9 more retailers have this diamond
Prices start from $3,517 AUDSave up to $4,706 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
$3,517 AUD