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Heart|Natural|GIA

0.51ct H IF Heart Natural Diamond

GD • H/IF • GIA 1523721451

Certificate GIA 1523721451

Diamond specifications and retailer prices

From €509 EUR
As of November 6, 2026
Save €233 EUR (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €742 EUR at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1523721451. Listed at 5 retailers as of November 6, 2026, with prices from €509 to €742, a €233 spread on the same certified stone. Steven Stone lists it at €742. 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
H
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1523721451
Dimensions4.86 × 5.59 × 3.24 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
4.86 mm5.59 mm0.51 ctH / IF
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1523721451
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.0%

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 6
Current: €629 EUR|Low: €476 EUR|High: €742 EUR|Avg: €577 EUR|-7.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Steven Stone
November 7, 2026
Retailer 2€509 EUR
Retailer 3€517 EUR
Retailer 4€569 EUR
Retailer 1€629 EUR
Steven Stone€742 EUR

42 data points across 5 retailers

5 retailers€509 EUR to €742 EUR

A
Cheapest Retailer
-
€509 EUR
A
Retailer 2
-
€517 EUR
View
Final sale: no returns
A
Retailer 3
-
€569 EUR
View
B+
Retailer 4
-
€629 EUR
View
Most Expensive
B
Steven Stone
333499118 · Nov 7
€742 EUR
£652 GBP
View
4 more retailers have this diamond
Prices start from €509 EURSave up to €233 EUR

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
0.51ct Heart
€509 EUR