CaratHunter
Plans
Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 6552531907

Certificate GIA 6552531907

Diamond specifications and retailer prices

From HK$4,218 HKD
As of November 1, 2026
Save HK$11,364 HKD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$15,582 HKD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552531907. Listed at 15 retailers as of November 1, 2026, with prices from HK$4,218 to HK$15,582, a HK$11,364 spread on the same certified stone. NZ Jewellers lists it at HK$15,582. 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

0.51
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552531907
Dimensions8.34 × 4.13 × 2.58 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.34 mm4.13 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552531907
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.5%

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 1
Current: HK$6,118 HKD|Low: HK$4,218 HKD|High: HK$11,619 HKD|Avg: HK$6,190 HKD|+6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9HK$4,218 HKD
Retailer 7HK$4,582 HKD
Retailer 10HK$4,967 HKD
Retailer 6HK$5,092 HKD
Retailer 8HK$5,351 HKD
Retailer 2HK$5,885 HKD
Retailer 1HK$6,118 HKD
Retailer 5HK$6,228 HKD
Retailer 4HK$7,316 HKD
Retailer 3HK$11,479 HKD

44 data points across 10 retailers

15 retailersHK$4,218 HKD to HK$15,582 HKD

A
Cheapest Retailer
-
HK$4,218 HKD
B+
Retailer 2
-
HK$4,582 HKD
$584 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$4,967 HKD
$633 USD
View
B+
Retailer 4
-
HK$5,092 HKD
$649 USD
View
B+
Retailer 5
-
HK$5,173 HKD
SGD 891 SGD
View
B+
Retailer 6
-
HK$5,351 HKD
$682 USD
View
B+
Retailer 7
-
HK$5,351 HKD
$682 USD
View
Retailer 8
-
HK$5,735 HKD
$731 USD
View
Price last confirmed 57 days ago
B+
Retailer 9
-
HK$5,735 HKD
$731 USD
View
B+
Retailer 10
-
HK$6,005 HKD
$765 USD
View
B+
Retailer 11
-
HK$6,118 HKD
£614 GBP
View
B+
Retailer 12
-
HK$6,228 HKD
£625 GBP
View
B
Retailer 13
-
HK$7,316 HKD
€888 EUR
View
B
Retailer 14
-
HK$11,479 HKD
£1,152 GBP
View
Most Expensive
C
NZ Jewellers
f0449ea3-d67a-4071-9790-c0195c56378c · Nov 3
HK$15,582 HKD
$1,986 USD
View
14 more retailers have this diamond
Prices start from HK$4,218 HKDSave up to HK$11,364 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$4,218 HKD