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Heart|Natural|GIA

0.51ct G VS1 Heart Natural Diamond

GD • G/VS1 • GIA 6545195206

Certificate GIA 6545195206

Diamond specifications and retailer prices

From $664 SGD
As of November 4, 2026
Save $199 SGD (23%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $863 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545195206. Listed at 6 retailers as of November 4, 2026, with prices from $664 to $863, a $199 spread on the same certified stone. Blue Nile lists it at $863. 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
G
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545195206
Dimensions5.07 × 5.54 × 3.29 mm
L/W Ratio1.09
Top View
5.07 mm5.54 mm0.51 ctG / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6545195206
Side View
Table 55.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.4%

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 4
Current: $863 SGD|Low: $608 SGD|High: $986 SGD|Avg: $800 SGD|-12.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$664 SGD
Retailer 5$678 SGD
Retailer 6$742 SGD
Retailer 2$823 SGD
Retailer 4$843 SGD
Blue Nile$863 SGD

41 data points across 6 retailers

6 retailers$664 SGD to $863 SGD

A
Cheapest Retailer
-
$664 SGD
A
Retailer 2
-
$678 SGD
View
Final sale: no returns
A
Retailer 3
-
$742 SGD
View
B+
Retailer 4
-
$823 SGD
View
B+
Retailer 5
-
$843 SGD
View
Most Expensive
B+
Blue Nile
27518861 · Nov 5
$863 SGD
$676 USD
View
5 more retailers have this diamond
Prices start from $664 SGDSave up to $199 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
$664 SGD