Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2554995250

Certificate GIA 2554995250

Diamond specifications and retailer prices

From HK$4,608 HKD
As of October 30, 2026
18 retailers carry this diamond
Most expensive: HK$17,062 HKD at NZ Jewellers · As of October 27, 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 H 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 2554995250. Listed at 18 retailers as of October 27, 2026. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554995250
Dimensions8.03 × 4.05 × 2.62 mm
L/W Ratio1.98
Key to symbols
Feather, Crystal
Top View
8.03 mm4.05 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 2554995250
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 30
Current: HK$17,062 HKD|Low: HK$4,412 HKD|High: HK$17,062 HKD|Avg: HK$7,170 HKD|+3.6%
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
Retailer 18
Retailer 19
October 30, 2026
Retailer 3HK$4,608 HKD
Retailer 6HK$5,016 HKD
Retailer 17HK$5,439 HKD
Retailer 19HK$5,439 HKD
Retailer 7HK$5,486 HKD
Retailer 10HK$5,651 HKD
Retailer 18HK$5,651 HKD
Retailer 5HK$6,278 HKD
Retailer 16HK$6,278 HKD
Retailer 8HK$6,356 HKD
Retailer 9HK$6,474 HKD
Retailer 12HK$6,693 HKD
Retailer 13HK$6,709 HKD
Retailer 4HK$6,858 HKD
Retailer 15HK$7,720 HKD
Retailer 2HK$8,394 HKD
Retailer 11HK$8,464 HKD
Retailer 14HK$12,626 HKD
NZ JewellersHK$17,062 HKD

26 data points across 19 retailers

18 retailersHK$4,608 HKD to HK$17,062 HKD

Retailer 1
-
HK$4,608 HKD
Price last confirmed 8 days ago
Retailer 2
-
HK$5,439 HKD
View
Price last confirmed 9 days ago
Retailer 3
-
HK$5,439 HKD
View
Price last confirmed 9 days ago
Retailer 4
-
HK$5,486 HKD
View
Price last confirmed 10 days ago
Retailer 5
-
HK$5,651 HKD
View
Price last confirmed 9 days ago
Retailer 6
-
HK$5,651 HKD
View
Price last confirmed 11 days ago
Retailer 7
-
HK$6,278 HKD
View
Price last confirmed 11 days ago
Retailer 8
-
HK$6,278 HKD
View
Price last confirmed 20 days ago
Retailer 9
-
HK$6,356 HKD
View
Price last confirmed 8 days ago
Retailer 10
-
HK$6,474 HKD
View
Price last confirmed 8 days ago
Retailer 11
-
HK$6,693 HKD
View
Price last confirmed 8 days ago
Retailer 12
-
HK$6,709 HKD
View
Price last confirmed 8 days ago
Retailer 13
-
HK$6,858 HKD
View
Price last confirmed 7 days ago
Retailer 14
-
HK$7,720 HKD
View
Price last confirmed 10 days ago
Retailer 15
-
HK$8,394 HKD
View
Price last confirmed 8 days ago
Retailer 16
-
HK$8,464 HKD
View
Price last confirmed 33 days ago
Retailer 17
-
HK$12,626 HKD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
68b04a57-1884-4203-9656-3c71befe0aef · Oct 27
HK$17,062 HKD
$2,177 USD
View
Price under review
17 more retailers have this diamond

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.

0.50ct Marquise
HK$4,608 HKD