Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7552995448

Certificate GIA 7552995448

Diamond specifications and retailer prices

From HK$4,514 HKD
As of November 6, 2026
Save HK$7,884 HKD (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$17,360 HKD at NZ Jewellers · As of September 28, 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 I 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 7552995448. Listed at 22 retailers as of November 2, 2026, with a 175% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552995448
Dimensions8.58 × 3.99 × 2.50 mm
L/W Ratio2.15
Key to symbols
Feather
Top View
8.58 mm3.99 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552995448
Side View
Table 56.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.6%

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 6
Current: HK$16,835 HKD|Low: HK$4,397 HKD|High: HK$17,360 HKD|Avg: HK$7,538 HKD|-3.0%
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 6, 2026
Retailer 14HK$4,514 HKD
Retailer 13HK$4,945 HKD
Retailer 5HK$5,079 HKD
Retailer 12HK$5,369 HKD
Retailer 7HK$5,533 HKD
Retailer 3HK$5,572 HKD
Retailer 4HK$6,192 HKD
Retailer 15HK$6,403 HKD
Retailer 2HK$6,560 HKD
Retailer 11HK$6,779 HKD
Retailer 9HK$7,610 HKD
Retailer 8HK$8,284 HKD
Retailer 6HK$8,315 HKD
Retailer 10HK$12,399 HKD
NZ JewellersHK$16,835 HKD

42 data points across 15 retailers

22 retailersHK$4,514 HKD to HK$12,399 HKD

A
Cheapest Retailer
-
HK$4,514 HKD
B+
Retailer 2
-
HK$4,945 HKD
View
Final sale: no returns
Retailer 3
-
HK$5,079 HKD
View
Price last confirmed 20 days ago
Retailer 4
-
HK$5,369 HKD
View
Price last confirmed 18 days ago
Retailer 5
-
HK$5,369 HKD
View
Price last confirmed 22 days ago
Retailer 6
-
HK$5,533 HKD
View
Price last confirmed 45 days ago
Retailer 7
-
HK$5,533 HKD
View
Price last confirmed 48 days ago
Retailer 8
-
HK$5,572 HKD
View
Price last confirmed 22 days ago
Retailer 9
-
HK$5,572 HKD
View
Price last confirmed 11 days ago
Retailer 10
-
HK$6,192 HKD
View
Price last confirmed 17 days ago
Retailer 11
-
HK$6,387 HKD
View
Price last confirmed 39 days ago
Retailer 12
-
HK$6,387 HKD
View
Price last confirmed 46 days ago
B
Retailer 13
-
HK$6,403 HKD
View
B+
Retailer 14
-
HK$6,560 HKD
View
B
Retailer 15
-
HK$6,779 HKD
View
B
Retailer 16
-
HK$7,610 HKD
View
B
Retailer 17
-
HK$8,284 HKD
View
Retailer 18
-
HK$8,315 HKD
View
Price last confirmed 34 days ago
B
Retailer 19
-
HK$12,399 HKD
View
Retailer 20
-
HK$16,835 HKD
View
Price under review
Retailer 21
-
HK$17,360 HKD
View
Price under review
Most Expensive
NZ Jewellers
6790da7f-086b-474c-8ec5-a17ba74d5700 · Sep 28
HK$17,360 HKD
$2,215 USD
View
Price under review
21 more retailers have this diamond
Prices start from HK$4,514 HKDSave up to HK$7,884 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$4,514 HKD