Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6552995482

Certificate GIA 6552995482

Diamond specifications and retailer prices

From $589 USD
HK$4,600 HKD
As of November 1, 2026
Save $1,051 USD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,215 USD 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 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 6552995482. Listed at 20 retailers as of October 29, 2026, with a 178% 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552995482
Dimensions7.57 × 4.28 × 2.66 mm
L/W Ratio1.77
Key to symbols
Knot, Feather
Top View
7.57 mm4.28 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552995482
Side View
Table 62.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.1%

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: $2,215 USD|Low: $576 USD|High: $2,215 USD|Avg: $903 USD|+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
November 2, 2026
Retailer 4$589 USD
Retailer 7$652 USD
Retailer 6$668 USD
Retailer 16$706 USD
Retailer 18$706 USD
Retailer 3$710 USD
Retailer 17$733 USD
Retailer 10$733 USD
Retailer 15$815 USD
Retailer 8$821 USD
Retailer 9$838 USD
Retailer 11$865 USD
Retailer 2$867 USD
Retailer 5$885 USD
Retailer 12$1,004 USD
Retailer 13$1,090 USD
Retailer 14$1,640 USD
NZ Jewellers$2,215 USD

28 data points across 18 retailers

20 retailers$589 USD to $1,640 USD

A
Cheapest Retailer
-
$589 USD
HK$4,600 HKD
B+
Retailer 2
-
$652 USD
View
Final sale: no returns
Retailer 3
-
$668 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$706 USD
View
B+
Retailer 5
-
$706 USD
View
B+
Retailer 6
-
$710 USD
View
B+
Retailer 7
-
$733 USD
View
Retailer 8
-
$733 USD
SGD 991 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$815 USD
View
B+
Retailer 10
-
$821 USD
View
B
Retailer 11
-
$838 USD
View
B
Retailer 12
-
$865 USD
£681 GBP
View
B
Retailer 13
-
$867 USD
£683 GBP
View
B+
Retailer 14
-
$885 USD
View
Retailer 15
-
$945 USD
£744 GBP
View
Price last confirmed 39 days ago
B
Retailer 16
-
$1,004 USD
€956 EUR
View
B
Retailer 17
-
$1,090 USD
ZAR 17,610 ZAR
View
Retailer 18
-
$1,098 USD
A$1,690 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$1,640 USD
£1,291 GBP
View
Most Expensive
NZ Jewellers
f1aeaa7e-0436-4396-b21d-7a268a6e3d7a · Oct 30
$2,215 USD
View
Price under review
19 more retailers have this diamond
Prices start from $589 USDSave up to $1,051 USD

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
$589 USD