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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 2526619322

Certificate GIA 2526619322

Diamond specifications and retailer prices

From $1,461 AUD
As of November 6, 2026
Save $1,112 AUD (43%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,573 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter 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 2526619322. Listed at 4 retailers as of November 4, 2026, with prices from $1,461 to $2,573, a $1,112 spread on the same certified stone. MOH London lists it at $2,573. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2526619322
Dimensions4.44 × 4.39 × 3.01 mm
L/W Ratio1.01
Top View
4.44 mm4.39 mm0.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526619322
Side View
Table 60.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,573 AUD|Low: $1,384 AUD|High: $2,608 AUD|Avg: $1,980 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$1,461 AUD
Retailer 5$1,818 AUD
Retailer 2$1,946 AUD
Retailer 4$2,115 AUD
MOH London$2,573 AUD

44 data points across 5 retailers

4 retailers$1,461 AUD to $2,573 AUD

B
Cheapest Retailer
-
$1,461 AUD
B
Retailer 2
-
$1,946 AUD
View
Retailer 3
-
$2,115 AUD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
D491426A1 · Nov 4
$2,573 AUD
£1,392 GBP
View
3 more retailers have this diamond
Prices start from $1,461 AUDSave up to $1,112 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
$1,461 AUD