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Heart|Natural|GIA

1.51ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 5546957574

Certificate GIA 5546957574

Diamond specifications and retailer prices

From $5,003 AUD
$3,515 USD
As of October 30, 2026
Save $385 AUD (7%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,388 AUD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546957574. Listed at 6 retailers as of October 30, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546957574
Dimensions7.25 × 7.68 × 4.69 mm
L/W Ratio1.06
Top View
7.25 mm7.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546957574
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,388 AUD|Low: $4,434 AUD|High: $6,166 AUD|Avg: $5,348 AUD|-11.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4$5,003 AUD
Retailer 2$5,031 AUD
Retailer 3$5,097 AUD
Retailer 5$5,136 AUD
Retailer 6$5,376 AUD
77 Diamonds$5,388 AUD

46 data points across 6 retailers

6 retailers$5,003 AUD to $5,388 AUD

A
Cheapest Retailer
-
$5,003 AUD
$3,515 USD
A
Retailer 2
-
$5,031 AUD
MYR 14,398 MYR
View
A
Retailer 3
-
$5,097 AUD
₹341,029 INR
View
A
Retailer 4
-
$5,136 AUD
$3,608 USD
View
Final sale: no returns
A
Retailer 5
-
$5,376 AUD
SGD 5,104 SGD
View
Most Expensive
A
77 Diamonds
HSCPXY345C3H · Oct 30
$5,388 AUD
£2,981 GBP
View
5 more retailers have this diamond
Prices start from $5,003 AUDSave up to $385 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
$5,003 AUD