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Marquise|Natural|GIA

0.51ct J IF Marquise Natural Diamond

EX • J/IF • GIA 6541800432

Certificate GIA 6541800432

Diamond specifications and retailer prices

From HK$4,318 HKD
As of October 30, 2026
Save HK$8,018 HKD (65%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$17,701 HKD at NZ Jewellers · As of September 25, 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 J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541800432. Listed at 15 retailers as of October 29, 2026, with a 186% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541800432
Dimensions8.09 × 4.17 × 2.59 mm
L/W Ratio1.94
Top View
8.09 mm4.17 mm0.51 ctJ / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541800432
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 39°Culet: NoneDepth 62.1%

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: Oct 30
Current: HK$5,828 HKD|Low: HK$3,680 HKD|High: HK$12,804 HKD|Avg: HK$6,882 HKD|+1.0%
Retailer 1
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 30, 2026
Retailer 11HK$4,318 HKD
Retailer 3HK$4,786 HKD
Retailer 13HK$4,904 HKD
Retailer 5HK$5,365 HKD
Retailer 10HK$5,422 HKD
Retailer 1HK$5,828 HKD
Retailer 14HK$6,693 HKD
Retailer 15HK$6,748 HKD
Retailer 6HK$6,925 HKD
Retailer 4HK$7,300 HKD
Retailer 8HK$7,324 HKD
Retailer 12HK$7,646 HKD
Retailer 9HK$8,110 HKD
Retailer 7HK$8,239 HKD
Retailer 2HK$12,336 HKD

33 data points across 15 retailers

15 retailersHK$4,318 HKD to HK$12,336 HKD

A
Cheapest Retailer
-
HK$4,318 HKD
A
Retailer 2
-
HK$4,786 HKD
$610 USD
View
Retailer 3
-
HK$5,365 HKD
SGD 924 SGD
View
Price last confirmed 11 days ago
A
Retailer 4
-
HK$5,422 HKD
$691 USD
View
A
Retailer 5
-
HK$5,828 HKD
£585 GBP
View
B+
Retailer 6
-
HK$6,693 HKD
$853 USD
View
B+
Retailer 7
-
HK$6,748 HKD
$860 USD
View
B+
Retailer 8
-
HK$6,925 HKD
$883 USD
View
B+
Retailer 9
-
HK$7,300 HKD
$930 USD
View
B+
Retailer 10
-
HK$7,324 HKD
€889 EUR
View
Retailer 11
-
HK$7,646 HKD
$974 USD
View
Price last confirmed 10 days ago
Retailer 12
-
HK$8,110 HKD
ZAR 16,699 ZAR
View
Price last confirmed 12 days ago
Retailer 13
-
HK$8,239 HKD
A$1,615 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
HK$12,336 HKD
£1,238 GBP
View
Most Expensive
NZ Jewellers
c2470ebc-5229-4a66-b206-151c4eaee846 · Sep 25
HK$17,701 HKD
$2,256 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from HK$4,318 HKDSave up to HK$8,018 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 Marquise
HK$4,318 HKD