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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6542475233

Certificate GIA 6542475233

Diamond specifications and retailer prices

From HK$7,139 HKD
As of November 5, 2026
Save HK$4,003 HKD (36%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$11,142 HKD at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542475233. Listed at 9 retailers as of November 5, 2026, with prices from HK$7,139 to HK$11,142, a HK$4,003 spread on the same certified stone. Diamond Exchange Canada lists it at HK$11,142. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.36°
OriginNatural
Grading LabGIA
CertificateGIA 6542475233
Dimensions8.28 × 4.34 × 2.52 mm
L/W Ratio1.91
Top View
8.28 mm4.34 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542475233
Side View
Table 63.0%Crown 33.36°Girdle: Sli. ThickPavilionCulet: NoneDepth 58.0%

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 5
Current: HK$11,142 HKD|Low: HK$6,315 HKD|High: HK$11,142 HKD|Avg: HK$7,928 HKD
Diamond Exchange Canada
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 4HK$6,315 HKD
Retailer 13HK$6,433 HKD
Retailer 3HK$6,464 HKD
Retailer 5HK$6,935 HKD
Retailer 7HK$7,139 HKD
Retailer 9HK$7,688 HKD
Retailer 10HK$7,688 HKD
Retailer 12HK$7,735 HKD
Retailer 8HK$7,924 HKD
Retailer 2HK$8,920 HKD
Retailer 6HK$9,077 HKD
Retailer 11HK$9,720 HKD
Diamond Exchange CanadaHK$11,142 HKD

43 data points across 13 retailers

9 retailersHK$7,139 HKD to HK$11,142 HKD

B+
Cheapest Retailer
-
HK$7,139 HKD
B+
Retailer 2
-
HK$7,688 HKD
View
B+
Retailer 3
-
HK$7,688 HKD
View
B+
Retailer 4
-
HK$7,735 HKD
View
B+
Retailer 5
-
HK$7,924 HKD
View
B+
Retailer 6
-
HK$8,920 HKD
View
B+
Retailer 7
-
HK$9,077 HKD
View
B
Retailer 8
-
HK$9,720 HKD
View
Most Expensive
B
Diamond Exchange Canada
1984739230 · Nov 5
HK$11,142 HKD
CA$1,973 CAD
View
8 more retailers have this diamond
Prices start from HK$7,139 HKDSave up to HK$4,003 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$7,139 HKD