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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1555452594

Certificate GIA 1555452594

Diamond specifications and retailer prices

From HK$7,100 HKD
$905 USD
As of November 1, 2026
Save HK$6,739 HKD (49%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$20,799 HKD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555452594. Listed at 24 retailers as of October 30, 2026, with a 95% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555452594
Dimensions8.80 × 4.01 × 2.54 mm
L/W Ratio2.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
8.80 mm4.01 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555452594
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: 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 1
Current: HK$20,799 HKD|Low: HK$4,856 HKD|High: HK$20,799 HKD|Avg: HK$9,244 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 2, 2026
Retailer 16HK$6,776 HKD
Retailer 13HK$7,100 HKD
Retailer 18HK$7,132 HKD
Retailer 11HK$7,167 HKD
Retailer 8HK$7,555 HKD
Retailer 4HK$7,563 HKD
Retailer 22HK$7,587 HKD
Retailer 23HK$7,642 HKD
Retailer 3HK$7,728 HKD
Retailer 10HK$7,728 HKD
Retailer 20HK$8,026 HKD
Retailer 21HK$8,748 HKD
Retailer 17HK$8,905 HKD
Retailer 5HK$8,913 HKD
Retailer 12HK$9,415 HKD
Retailer 15HK$9,415 HKD
Retailer 6HK$9,611 HKD
Retailer 2HK$9,637 HKD
Retailer 14HK$9,729 HKD
Retailer 9HK$11,110 HKD
Retailer 19HK$11,152 HKD
Retailer 7HK$13,840 HKD
NZ JewellersHK$20,799 HKD

44 data points across 23 retailers

24 retailersHK$7,100 HKD to HK$13,840 HKD

Retailer 1
-
HK$5,122 HKD
Price last confirmed 59 days ago
B+
Retailer 2
-
HK$7,100 HKD
$905 USD
View
B+
Retailer 3
-
HK$7,132 HKD
$909 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$7,167 HKD
$914 USD
View
B+
Retailer 5
-
HK$7,555 HKD
$963 USD
View
B+
Retailer 6
-
HK$7,563 HKD
$964 USD
View
B+
Retailer 7
-
HK$7,587 HKD
$967 USD
View
B+
Retailer 8
-
HK$7,642 HKD
$974 USD
View
B+
Retailer 9
-
HK$7,654 HKD
A$1,501 AUD
View
B+
Retailer 10
-
HK$7,728 HKD
$985 USD
View
B+
Retailer 11
-
HK$7,728 HKD
$985 USD
View
B+
Retailer 12
-
HK$8,026 HKD
$1,023 USD
View
B+
Retailer 13
-
HK$8,748 HKD
$1,115 USD
View
B
Retailer 14
-
HK$8,905 HKD
$1,135 USD
View
B+
Retailer 15
-
HK$8,913 HKD
$1,136 USD
View
B
Retailer 16
-
HK$9,415 HKD
$1,200 USD
View
B
Retailer 17
-
HK$9,415 HKD
$1,200 USD
View
B
Retailer 18
-
HK$9,611 HKD
$1,225 USD
View
B
Retailer 19
-
HK$9,637 HKD
£967 GBP
View
B
Retailer 20
-
HK$9,729 HKD
$1,240 USD
View
B
Retailer 21
-
HK$11,110 HKD
$1,416 USD
View
Retailer 22
-
HK$11,152 HKD
A$2,187 AUD
View
Price last confirmed 28 days ago
B
Retailer 23
-
HK$13,840 HKD
CA$2,450 CAD
View
Most Expensive
NZ Jewellers
f3be42e8-93e5-40cc-b751-f593e0ae7a41 · Oct 30
HK$20,799 HKD
$2,651 USD
View
Price under review
23 more retailers have this diamond
Prices start from HK$7,100 HKDSave up to HK$6,739 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$7,100 HKD