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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2517922011

Certificate GIA 2517922011

Diamond specifications and retailer prices

From HK$5,100 HKD
$650 USD
As of November 1, 2026
Save HK$5,373 HKD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$17,936 HKD at NZ Jewellers · As of November 3, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2517922011. Listed at 18 retailers as of November 1, 2026, with a 105% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517922011
Dimensions7.92 × 4.11 × 2.63 mm
L/W Ratio1.93
Top View
7.92 mm4.11 mm0.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2517922011
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.9%

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$17,936 HKD|Low: HK$5,100 HKD|High: HK$18,250 HKD|Avg: HK$7,973 HKD|-1.7%
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
November 3, 2026
Retailer 7HK$5,100 HKD
Retailer 13HK$5,720 HKD
Retailer 15HK$5,720 HKD
Retailer 3HK$5,728 HKD
Retailer 14HK$5,939 HKD
Retailer 6HK$6,591 HKD
Retailer 10HK$6,599 HKD
Retailer 5HK$6,758 HKD
Retailer 2HK$6,862 HKD
Retailer 8HK$7,021 HKD
Retailer 4HK$7,101 HKD
Retailer 11HK$8,115 HKD
Retailer 12HK$8,829 HKD
Retailer 9HK$10,473 HKD
NZ JewellersHK$17,936 HKD

31 data points across 15 retailers

18 retailersHK$5,100 HKD to HK$10,473 HKD

A
Cheapest Retailer
-
HK$5,100 HKD
$650 USD
A
Retailer 2
-
HK$5,720 HKD
$729 USD
View
B+
Retailer 3
-
HK$5,720 HKD
$729 USD
View
A
Retailer 4
-
HK$5,728 HKD
$730 USD
View
B+
Retailer 5
-
HK$5,916 HKD
$754 USD
View
B+
Retailer 6
-
HK$5,939 HKD
$757 USD
View
B+
Retailer 7
-
HK$6,591 HKD
$840 USD
View
B+
Retailer 8
-
HK$6,599 HKD
$841 USD
View
B+
Retailer 9
-
HK$6,758 HKD
$861 USD
View
B+
Retailer 10
-
HK$6,862 HKD
£689 GBP
View
B+
Retailer 11
-
HK$7,021 HKD
£705 GBP
View
B+
Retailer 12
-
HK$7,101 HKD
$905 USD
View
Retailer 13
-
HK$7,267 HKD
£729 GBP
View
Price last confirmed 37 days ago
B
Retailer 14
-
HK$8,115 HKD
€985 EUR
View
Retailer 15
-
HK$8,751 HKD
A$1,716 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
HK$8,829 HKD
ZAR 18,179 ZAR
View
B
Retailer 17
-
HK$10,473 HKD
£1,051 GBP
View
Most Expensive
NZ Jewellers
9439b9d0-7d62-4d11-90c4-dfe0089be64b · Nov 3
HK$17,936 HKD
$2,286 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$5,100 HKDSave up to HK$5,373 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
0.50ct Marquise
HK$5,100 HKD