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Heart|Natural|GIA

0.51ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 7521369439

Certificate GIA 7521369439

Diamond specifications and retailer prices

From $454 AUD
$318 USD
As of November 2, 2026
Save $156 AUD (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $610 AUD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7521369439. Listed at 3 retailers as of November 2, 2026, with prices from $454 to $610, a $156 spread on the same certified stone. 77 Diamonds lists it at $610. 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

0.51
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7521369439
Dimensions4.95 × 5.77 × 3.17 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Cloud
Top View
4.95 mm5.77 mm0.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7521369439
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $610 AUD|Low: $454 AUD|High: $654 AUD|Avg: $536 AUD|-5.0%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 2$454 AUD
Retailer 3$480 AUD
77 Diamonds$610 AUD

39 data points across 3 retailers

3 retailers$454 AUD to $610 AUD

B+
Cheapest Retailer
-
$454 AUD
$318 USD
Final sale: no returns
B+
Retailer 2
-
$480 AUD
SGD 455 SGD
View
Most Expensive
B+
77 Diamonds
HSCPMFX4DDKN · Nov 3
$610 AUD
£336 GBP
View
2 more retailers have this diamond
Prices start from $454 AUDSave up to $156 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.

B+
0.51ct Heart
$454 AUD