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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1567415074

Certificate GIA 1567415074

Diamond specifications and retailer prices

From HK$4,229 HKD
$539 USD
As of November 2, 2026
Save HK$6,732 HKD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$18,768 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567415074. Listed at 11 retailers as of November 2, 2026, with a 159% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1567415074
Dimensions8.13 × 4.25 × 2.61 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
8.13 mm4.25 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1567415074
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.4%

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 2
Current: HK$18,768 HKD|Low: HK$4,229 HKD|High: HK$18,768 HKD|Avg: HK$7,979 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 10HK$4,229 HKD
Retailer 4HK$4,489 HKD
Retailer 8HK$5,492 HKD
Retailer 7HK$6,073 HKD
Retailer 9HK$7,026 HKD
Retailer 2HK$7,120 HKD
Retailer 5HK$7,149 HKD
Retailer 6HK$8,477 HKD
Retailer 3HK$10,961 HKD
NZ JewellersHK$18,768 HKD

30 data points across 10 retailers

11 retailersHK$4,229 HKD to HK$10,961 HKD

A
Cheapest Retailer
-
HK$4,229 HKD
$539 USD
Final sale: no returns
A
Retailer 2
-
HK$4,489 HKD
₹54,491 INR
View
Retailer 3
-
HK$5,492 HKD
$700 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
HK$6,073 HKD
$774 USD
View
B+
Retailer 5
-
HK$6,834 HKD
$871 USD
View
B+
Retailer 6
-
HK$7,026 HKD
$895 USD
View
B+
Retailer 7
-
HK$7,120 HKD
£715 GBP
View
B+
Retailer 8
-
HK$7,149 HKD
£717 GBP
View
B+
Retailer 9
-
HK$8,477 HKD
€1,029 EUR
View
B
Retailer 10
-
HK$10,961 HKD
£1,100 GBP
View
Most Expensive
NZ Jewellers
f9b0e7a9-88f2-4fac-abcd-6248f25589b8 · Nov 3
HK$18,768 HKD
$2,392 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$4,229 HKDSave up to HK$6,732 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$4,229 HKD