Heart|Natural|GIA

0.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6551900624

Certificate GIA 6551900624

Diamond specifications and retailer prices

From $508 USD
As of November 6, 2026
Save $763 USD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,916 USD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 0.5ct natural heart diamond

This 0.5ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551900624. Listed at 17 retailers as of November 2, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551900624
Dimensions4.82 × 5.57 × 3.21 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.82 mm5.57 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551900624
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.7%

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: $672 USD|Low: $491 USD|High: $1,393 USD|Avg: $799 USD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$508 USD
Retailer 9$545 USD
Retailer 1$672 USD
Retailer 3$688 USD
Retailer 6$689 USD
Retailer 7$745 USD
Retailer 10$786 USD
Retailer 4$849 USD
Retailer 2$896 USD
Retailer 5$1,271 USD

39 data points across 10 retailers

17 retailers$508 USD to $1,271 USD

A
Cheapest Retailer
-
$508 USD
Final sale: no returns
A
Retailer 2
-
$545 USD
View
Retailer 3
-
$596 USD
View
Price last confirmed 36 days ago
Retailer 4
-
$611 USD
View
Price last confirmed 45 days ago
Retailer 5
-
$642 USD
View
Price last confirmed 36 days ago
B+
Retailer 6
-
$672 USD
View
Retailer 7
-
$688 USD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$688 USD
View
B+
Retailer 9
-
$689 USD
View
Retailer 10
-
$705 USD
View
Price last confirmed 43 days ago
B+
Retailer 11
-
$745 USD
View
Retailer 12
-
$786 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$849 USD
View
Retailer 14
-
$896 USD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$1,271 USD
View
Retailer 16
-
$1,821 USD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
49635ef5-a538-412d-96e7-efbe2922fb1f · Sep 21
$1,916 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $508 USDSave up to $763 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
0.50ct Heart
$508 USD