Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 2546697194

Certificate GIA 2546697194

Diamond specifications and retailer prices

From HK$6,810 HKD
$868 USD
As of November 2, 2026
Save HK$8,615 HKD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$20,541 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546697194. Listed at 20 retailers as of November 2, 2026, with a 126% 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

0.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle35.9°
OriginNatural
Grading LabGIA
CertificateGIA 2546697194
Dimensions8.16 × 4.09 × 2.59 mm
L/W Ratio2.00
Top View
8.16 mm4.09 mm0.50 ctG / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546697194
Side View
Table 56.0%Crown 33.5°Girdle: MED-VTKPavilion 35.9°Culet: NoneDepth 63.4%

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 2
Current: HK$20,541 HKD|Low: HK$6,810 HKD|High: HK$20,541 HKD|Avg: HK$10,053 HKD
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
Retailer 16
Retailer 17
November 3, 2026
Retailer 9HK$6,810 HKD
Retailer 12HK$7,664 HKD
Retailer 7HK$7,689 HKD
Retailer 13HK$7,768 HKD
Retailer 4HK$8,066 HKD
Retailer 3HK$8,427 HKD
Retailer 16HK$8,427 HKD
Retailer 15HK$8,748 HKD
Retailer 6HK$9,473 HKD
Retailer 8HK$9,494 HKD
Retailer 17HK$9,721 HKD
Retailer 2HK$9,855 HKD
Retailer 5HK$10,688 HKD
Retailer 14HK$11,013 HKD
Retailer 11HK$13,002 HKD
Retailer 10HK$15,425 HKD
NZ JewellersHK$20,541 HKD

45 data points across 17 retailers

20 retailersHK$6,810 HKD to HK$15,425 HKD

B+
Cheapest Retailer
-
HK$6,810 HKD
$868 USD
B+
Retailer 2
-
HK$7,664 HKD
SGD 1,320 SGD
View
B
Retailer 3
-
HK$7,689 HKD
$980 USD
View
B
Retailer 4
-
HK$7,768 HKD
$990 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$8,066 HKD
$1,028 USD
View
B
Retailer 6
-
HK$8,427 HKD
$1,074 USD
View
Retailer 7
-
HK$8,427 HKD
$1,074 USD
View
Price last confirmed 35 days ago
B
Retailer 8
-
HK$8,427 HKD
$1,074 USD
View
B
Retailer 9
-
HK$8,748 HKD
$1,115 USD
View
B
Retailer 10
-
HK$9,473 HKD
$1,207 USD
View
B
Retailer 11
-
HK$9,494 HKD
$1,210 USD
View
B
Retailer 12
-
HK$9,721 HKD
$1,239 USD
View
Retailer 13
-
HK$9,721 HKD
$1,239 USD
View
Price last confirmed 35 days ago
B
Retailer 14
-
HK$9,855 HKD
£989 GBP
View
B
Retailer 15
-
HK$10,688 HKD
$1,362 USD
View
Retailer 16
-
HK$11,013 HKD
A$2,160 AUD
View
Price last confirmed 30 days ago
B
Retailer 17
-
HK$13,002 HKD
ZAR 26,772 ZAR
View
B
Retailer 18
-
HK$15,425 HKD
£1,548 GBP
View
Retailer 19
-
HK$20,541 HKD
$2,618 USD
View
Price under review
Most Expensive
NZ Jewellers
4f4d8d87-1edb-4f18-9494-850b760bb054 · Nov 3
HK$20,541 HKD
$2,618 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$6,810 HKDSave up to HK$8,615 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+
0.50ct Marquise
HK$6,810 HKD