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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 7546133666

Certificate GIA 7546133666

Diamond specifications and retailer prices

From $675 SGD
As of November 6, 2026
Save $316 SGD (32%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $991 SGD 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 $675 to $991, a $316 spread on the same certified stone. Steven Stone lists it at $991. 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
Colour
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: $836 SGD|Low: $610 SGD|High: $991 SGD|Avg: $743 SGD|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Steven Stone
November 7, 2026
Retailer 4$675 SGD
Retailer 3$690 SGD
Retailer 2$755 SGD
Retailer 1$836 SGD
Steven Stone$991 SGD

41 data points across 5 retailers

5 retailers$675 SGD to $991 SGD

A
Cheapest Retailer
-
$675 SGD
A
Retailer 2
-
$690 SGD
View
Final sale: no returns
B+
Retailer 3
-
$755 SGD
View
B+
Retailer 4
-
$836 SGD
View
Most Expensive
B
Steven Stone
333606162 · Nov 7
$991 SGD
£609 GBP
View
4 more retailers have this diamond
Prices start from $675 SGDSave up to $316 SGD

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
$675 SGD