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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 3515479566

Certificate GIA 3515479566

Diamond specifications and retailer prices

From $7,478 AUD
$5,253 USD
As of October 30, 2026
Save $6,862 AUD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,340 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3515479566. Listed at 12 retailers as of October 30, 2026, with prices from $7,478 to $14,340, a $6,862 spread on the same certified stone. NZ Jewellers lists it at $14,340. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3515479566
Dimensions6.76 × 7.92 × 4.42 mm
L/W Ratio1.17
Top View
6.76 mm7.92 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 3515479566
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.8%

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: Oct 30
Current: $14,340 AUD|Low: $7,478 AUD|High: $17,907 AUD|Avg: $10,374 AUD|-19.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 3$7,478 AUD
Retailer 13$7,606 AUD
Retailer 12$7,912 AUD
Retailer 11$7,994 AUD
Retailer 2$8,046 AUD
Retailer 4$8,476 AUD
Retailer 8$8,574 AUD
Retailer 10$8,574 AUD
Retailer 5$9,883 AUD
Retailer 9$9,893 AUD
Retailer 7$10,441 AUD
Retailer 6$12,699 AUD
NZ Jewellers$14,340 AUD

41 data points across 13 retailers

12 retailers$7,478 AUD to $14,340 AUD

A
Cheapest Retailer
-
$7,478 AUD
$5,253 USD
A
Retailer 2
-
$7,606 AUD
$5,343 USD
View
A
Retailer 3
-
$7,912 AUD
$5,558 USD
View
Final sale: no returns
B+
Retailer 4
-
$7,994 AUD
$5,615 USD
View
B+
Retailer 5
-
$8,046 AUD
£4,450 GBP
View
Retailer 6
-
$8,476 AUD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$8,574 AUD
$6,023 USD
View
B+
Retailer 8
-
$8,574 AUD
$6,023 USD
View
B+
Retailer 9
-
$9,893 AUD
$6,949 USD
View
B
Retailer 10
-
$10,441 AUD
ZAR 118,481 ZAR
View
B
Retailer 11
-
$12,699 AUD
£7,024 GBP
View
Most Expensive
B
NZ Jewellers
962f1555-ae7f-4ac4-8bb1-d5db45c8ff82 · Oct 30
$14,340 AUD
$10,073 USD
View
11 more retailers have this diamond
Prices start from $7,478 AUDSave up to $6,862 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
$7,478 AUD