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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 1518624145

Certificate GIA 1518624145

Diamond specifications and retailer prices

From HK$4,452 HKD
As of November 6, 2026
Save HK$10,659 HKD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$15,111 HKD 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 HK$4,452 to HK$15,111, a HK$10,659 spread on the same certified stone. NZ Jewellers lists it at HK$15,111. 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
Colour
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: HK$15,111 HKD|Low: HK$4,452 HKD|High: HK$15,111 HKD|Avg: HK$7,009 HKD
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 13HK$4,452 HKD
Retailer 3HK$4,820 HKD
Retailer 10HK$5,188 HKD
Retailer 12HK$5,188 HKD
Retailer 4HK$5,565 HKD
Retailer 6HK$5,862 HKD
Retailer 2HK$5,878 HKD
Retailer 9HK$6,035 HKD
Retailer 11HK$6,309 HKD
Retailer 5HK$7,242 HKD
Retailer 7HK$7,438 HKD
Retailer 8HK$11,113 HKD
NZ JewellersHK$15,111 HKD

38 data points across 13 retailers

15 retailersHK$4,452 HKD to HK$15,111 HKD

A
Cheapest Retailer
-
HK$4,452 HKD
Final sale: no returns
A
Retailer 2
-
HK$4,561 HKD
View
A
Retailer 3
-
HK$4,820 HKD
View
B+
Retailer 4
-
HK$5,188 HKD
View
Retailer 5
-
HK$5,188 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$5,565 HKD
View
B+
Retailer 7
-
HK$5,862 HKD
View
B+
Retailer 8
-
HK$5,878 HKD
View
B+
Retailer 9
-
HK$6,035 HKD
View
B+
Retailer 10
-
HK$6,309 HKD
View
B
Retailer 11
-
HK$6,654 HKD
View
Retailer 12
-
HK$7,242 HKD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
HK$7,438 HKD
View
B
Retailer 14
-
HK$11,113 HKD
View
Most Expensive
B
NZ Jewellers
1f9c128c-3fb7-4bd0-affb-343042fe8807 · Nov 5
HK$15,111 HKD
$1,928 USD
View
14 more retailers have this diamond
Prices start from HK$4,452 HKDSave up to HK$10,659 HKD

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
HK$4,452 HKD