Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 1545836843

Certificate GIA 1545836843

Diamond specifications and retailer prices

From $582 USD
As of November 6, 2026
Save $268 USD (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $850 USD 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1545836843. Listed at 5 retailers as of November 6, 2026, with prices from $582 to $850, a $268 spread on the same certified stone. Steven Stone lists it at $850. 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
D
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545836843
Dimensions4.77 × 5.64 × 3.34 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.77 mm5.64 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545836843
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
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: Nov 6
Current: $719 USD|Low: $515 USD|High: $850 USD|Avg: $641 USD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Steven Stone
November 7, 2026
Retailer 4$582 USD
Retailer 3$591 USD
Retailer 2$648 USD
Retailer 1$719 USD
Steven Stone$850 USD

41 data points across 5 retailers

5 retailers$582 USD to $850 USD

A
Cheapest Retailer
-
$582 USD
A
Retailer 2
-
$591 USD
View
Final sale: no returns
B+
Retailer 3
-
$648 USD
View
B+
Retailer 4
-
$719 USD
View
Most Expensive
B
Steven Stone
333504891 · Nov 7
$850 USD
£669 GBP
View
4 more retailers have this diamond
Prices start from $582 USDSave up to $268 USD

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
$582 USD