Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 1518624145

Certificate GIA 1518624145

Diamond specifications and retailer prices

From $568 USD
As of November 6, 2026
Save $1,360 USD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,928 USD at NZ Jewellers · As of November 5, 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 1518624145. Listed at 15 retailers as of November 5, 2026, with prices from $568 to $1,928, a $1,360 spread on the same certified stone. NZ Jewellers lists it at $1,928. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1518624145
Dimensions4.64 × 5.47 × 3.24 mm
L/W Ratio1.18
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Crystal
Top View
4.64 mm5.47 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1518624145
Side View
Table 59.0%CrownGirdle: STK-EXTPavilionCulet: NoneDepth 59.2%

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: $1,928 USD|Low: $568 USD|High: $1,928 USD|Avg: $894 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 13$568 USD
Retailer 3$615 USD
Retailer 10$662 USD
Retailer 12$662 USD
Retailer 4$710 USD
Retailer 6$748 USD
Retailer 2$750 USD
Retailer 9$770 USD
Retailer 11$805 USD
Retailer 5$924 USD
Retailer 7$949 USD
Retailer 8$1,418 USD
NZ Jewellers$1,928 USD

38 data points across 13 retailers

15 retailers$568 USD to $1,928 USD

A
Cheapest Retailer
-
$568 USD
Final sale: no returns
A
Retailer 2
-
$582 USD
View
A
Retailer 3
-
$615 USD
View
B+
Retailer 4
-
$662 USD
View
Retailer 5
-
$662 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$710 USD
View
B+
Retailer 7
-
$748 USD
View
B+
Retailer 8
-
$750 USD
View
B+
Retailer 9
-
$770 USD
View
B+
Retailer 10
-
$805 USD
View
B
Retailer 11
-
$849 USD
View
Retailer 12
-
$924 USD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
$949 USD
View
B
Retailer 14
-
$1,418 USD
View
Most Expensive
B
NZ Jewellers
1f9c128c-3fb7-4bd0-affb-343042fe8807 · Nov 5
$1,928 USD
View
14 more retailers have this diamond
Prices start from $568 USDSave up to $1,360 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
$568 USD