Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 5536992227

Certificate GIA 5536992227

Diamond specifications and retailer prices

From $439 USD
As of November 6, 2026
Save $253 USD (37%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,611 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded E 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 5536992227. Listed at 14 retailers as of November 6, 2026, with a 58% 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

0.51
Carat
E
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle42.9°
OriginNatural
Grading LabGIA
CertificateGIA 5536992227
Dimensions4.62 × 5.49 × 3.50 mm
L/W Ratio1.19
Top View
4.62 mm5.49 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536992227
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 42.9°Culet: NoneDepth 63.8%

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: $560 USD|Low: $323 USD|High: $1,111 USD|Avg: $610 USD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 15$439 USD
Retailer 13$440 USD
Retailer 2$460 USD
Retailer 10$473 USD
Retailer 12$504 USD
Retailer 14$508 USD
Retailer 8$524 USD
Retailer 1$560 USD
Retailer 7$570 USD
Retailer 9$599 USD
Retailer 5$680 USD
Retailer 11$692 USD
Retailer 4$737 USD
Retailer 6$739 USD
Retailer 3$1,111 USD

39 data points across 15 retailers

14 retailers$439 USD to $692 USD

A
Cheapest Retailer
-
$439 USD
Final sale: no returns
A
Retailer 2
-
$440 USD
View
A
Retailer 3
-
$460 USD
View
A
Retailer 4
-
$473 USD
View
A
Retailer 5
-
$504 USD
View
Retailer 6
-
$508 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$524 USD
View
A
Retailer 8
-
$560 USD
View
A
Retailer 9
-
$599 USD
View
B+
Retailer 10
-
$692 USD
View
Retailer 11
-
$737 USD
View
Price last confirmed 30 days ago
Retailer 12
-
$739 USD
View
Price last confirmed 34 days ago
Retailer 13
-
$1,111 USD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
0e3a3b94-9eb8-4298-8d6f-681678d05d41 · Sep 25
$1,611 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $439 USDSave up to $253 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
$439 USD