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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 2554049460

Certificate GIA 2554049460

Diamond specifications and retailer prices

From HK$6,802 HKD
As of November 4, 2026
Save HK$8,033 HKD (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$19,786 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554049460. Listed at 24 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554049460
Dimensions8.08 × 4.20 × 2.54 mm
L/W Ratio1.92
Top View
8.08 mm4.20 mm0.50 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554049460
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 60.6%

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: Nov 4
Current: HK$19,786 HKD|Low: HK$6,786 HKD|High: HK$19,786 HKD|Avg: HK$10,353 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
Retailer 16
November 6, 2026
Retailer 12HK$6,786 HKD
Retailer 15HK$7,218 HKD
Retailer 5HK$7,343 HKD
Retailer 6HK$7,351 HKD
Retailer 13HK$7,429 HKD
Retailer 3HK$7,633 HKD
Retailer 4HK$8,339 HKD
Retailer 14HK$8,551 HKD
Retailer 8HK$9,132 HKD
Retailer 9HK$9,359 HKD
Retailer 2HK$10,465 HKD
Retailer 16HK$10,607 HKD
Retailer 10HK$12,521 HKD
Retailer 7HK$13,141 HKD
Retailer 11HK$14,835 HKD
NZ JewellersHK$19,786 HKD

45 data points across 16 retailers

24 retailersHK$6,802 HKD to HK$14,835 HKD

Retailer 1
-
HK$6,786 HKD
Price last confirmed 9 days ago
B+
Retailer 2
-
HK$6,802 HKD
View
B+
Retailer 3
-
HK$7,218 HKD
View
B+
Retailer 4
-
HK$7,265 HKD
View
B+
Retailer 5
-
HK$7,312 HKD
View
B+
Retailer 6
-
HK$7,343 HKD
View
Retailer 7
-
HK$7,351 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$7,351 HKD
View
B+
Retailer 9
-
HK$7,429 HKD
View
B
Retailer 10
-
HK$7,633 HKD
View
B
Retailer 11
-
HK$8,339 HKD
View
B
Retailer 12
-
HK$8,481 HKD
View
B
Retailer 13
-
HK$8,551 HKD
View
B
Retailer 14
-
HK$8,944 HKD
View
B
Retailer 15
-
HK$8,944 HKD
View
B
Retailer 16
-
HK$9,132 HKD
View
B
Retailer 17
-
HK$9,257 HKD
View
B
Retailer 18
-
HK$9,359 HKD
View
B
Retailer 19
-
HK$10,465 HKD
View
Retailer 20
-
HK$10,607 HKD
View
Price last confirmed 33 days ago
B
Retailer 21
-
HK$12,521 HKD
View
C
Retailer 22
-
HK$13,141 HKD
View
B
Retailer 23
-
HK$14,835 HKD
View
Most Expensive
NZ Jewellers
b7e4e357-83ab-45b9-9099-d6809702460b · Nov 5
HK$19,786 HKD
$2,522 USD
View
Price under review
23 more retailers have this diamond
Prices start from HK$6,802 HKDSave up to HK$8,033 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+
0.50ct Marquise
HK$6,802 HKD