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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3555796306

Certificate GIA 3555796306

Diamond specifications and retailer prices

From HK$7,351 HKD
$937 USD
As of October 30, 2026
Save HK$7,814 HKD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$20,171 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise 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 3555796306. Listed at 18 retailers as of October 25, 2026, with a 106% 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555796306
Dimensions8.83 × 4.00 × 2.46 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.83 mm4.00 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555796306
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$20,171 HKD|Low: HK$7,351 HKD|High: HK$20,171 HKD|Avg: HK$10,734 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
Retailer 14
Retailer 15
October 31, 2026
Retailer 13HK$7,351 HKD
Retailer 3HK$7,493 HKD
Retailer 7HK$7,493 HKD
Retailer 11HK$7,571 HKD
Retailer 15HK$7,783 HKD
Retailer 4HK$8,646 HKD
Retailer 12HK$8,669 HKD
Retailer 6HK$9,313 HKD
Retailer 2HK$9,756 HKD
Retailer 8HK$10,734 HKD
Retailer 14HK$10,815 HKD
Retailer 9HK$12,768 HKD
Retailer 5HK$13,413 HKD
Retailer 10HK$15,165 HKD
NZ JewellersHK$20,171 HKD

44 data points across 15 retailers

18 retailersHK$7,351 HKD to HK$15,165 HKD

B+
Cheapest Retailer
-
HK$7,351 HKD
$937 USD
B+
Retailer 2
-
HK$7,398 HKD
$943 USD
View
B+
Retailer 3
-
HK$7,446 HKD
A$1,460 AUD
View
B+
Retailer 4
-
HK$7,493 HKD
$955 USD
View
B+
Retailer 5
-
HK$7,493 HKD
$955 USD
View
B+
Retailer 6
-
HK$7,571 HKD
$965 USD
View
B+
Retailer 7
-
HK$7,783 HKD
$992 USD
View
B+
Retailer 8
-
HK$8,646 HKD
$1,102 USD
View
B+
Retailer 9
-
HK$8,669 HKD
$1,105 USD
View
B+
Retailer 10
-
HK$9,313 HKD
$1,187 USD
View
B+
Retailer 11
-
HK$9,756 HKD
£979 GBP
View
B
Retailer 12
-
HK$10,734 HKD
€1,303 EUR
View
Retailer 13
-
HK$10,815 HKD
A$2,121 AUD
View
Price last confirmed 26 days ago
B
Retailer 14
-
HK$10,832 HKD
$1,381 USD
View
B
Retailer 15
-
HK$12,768 HKD
ZAR 26,291 ZAR
View
B
Retailer 16
-
HK$13,413 HKD
CA$2,374 CAD
View
B
Retailer 17
-
HK$15,165 HKD
£1,522 GBP
View
Most Expensive
NZ Jewellers
d4932268-9316-440b-8c79-7fc8808db737 · Oct 30
HK$20,171 HKD
$2,571 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$7,351 HKDSave up to HK$7,814 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.

B+
0.51ct Marquise
HK$7,351 HKD