Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 7546133666

Certificate GIA 7546133666

Diamond specifications and retailer prices

From $527 USD
As of November 6, 2026
Save $246 USD (32%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $773 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 7546133666. Listed at 5 retailers as of November 6, 2026, with prices from $527 to $773, a $246 spread on the same certified stone. Steven Stone lists it at $773. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7546133666
Dimensions4.98 × 5.52 × 3.28 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
4.98 mm5.52 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7546133666
Side View
Table 54.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.4%

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: $652 USD|Low: $476 USD|High: $773 USD|Avg: $580 USD|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Steven Stone
November 7, 2026
Retailer 4$527 USD
Retailer 3$538 USD
Retailer 2$589 USD
Retailer 1$652 USD
Steven Stone$773 USD

41 data points across 5 retailers

5 retailers$527 USD to $773 USD

A
Cheapest Retailer
-
$527 USD
A
Retailer 2
-
$538 USD
View
Final sale: no returns
B+
Retailer 3
-
$589 USD
View
B+
Retailer 4
-
$652 USD
View
Most Expensive
B
Steven Stone
333606162 · Nov 7
$773 USD
£609 GBP
View
4 more retailers have this diamond
Prices start from $527 USDSave up to $246 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
$527 USD