Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1548044206

Certificate GIA 1548044206

Diamond specifications and retailer prices

From $632 USD
As of November 1, 2026
Save $978 USD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,186 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 J 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 1548044206. Listed at 14 retailers as of November 1, 2026, with a 155% 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548044206
Dimensions8.32 × 4.08 × 2.53 mm
L/W Ratio2.04
Key to symbols
Feather, Cloud
Top View
8.32 mm4.08 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1548044206
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.0%

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: $2,186 USD|Low: $486 USD|High: $2,186 USD|Avg: $974 USD
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
November 2, 2026
Retailer 15$486 USD
Retailer 3$632 USD
Retailer 8$644 USD
Retailer 6$650 USD
Retailer 4$680 USD
Retailer 16$729 USD
Retailer 14$774 USD
Retailer 7$802 USD
Retailer 12$820 USD
Retailer 5$835 USD
Retailer 10$854 USD
Retailer 9$933 USD
Retailer 11$1,076 USD
Retailer 2$1,610 USD
Retailer 13$2,005 USD
NZ Jewellers$2,186 USD

24 data points across 16 retailers

14 retailers$632 USD to $1,610 USD

B+
Cheapest Retailer
-
$632 USD
B+
Retailer 2
-
$650 USD
View
B+
Retailer 3
-
$680 USD
View
B
Retailer 4
-
$729 USD
View
B
Retailer 5
-
$774 USD
View
B
Retailer 6
-
$802 USD
View
B
Retailer 7
-
$820 USD
View
B
Retailer 8
-
$835 USD
View
B
Retailer 9
-
$854 USD
£672 GBP
View
B
Retailer 10
-
$933 USD
€889 EUR
View
B
Retailer 11
-
$1,076 USD
ZAR 17,384 ZAR
View
B
Retailer 12
-
$1,610 USD
£1,268 GBP
View
Retailer 13
-
$2,005 USD
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
92e177b9-a25f-4889-a9b8-e24b7bbe50ef · Oct 30
$2,186 USD
View
Price under review
13 more retailers have this diamond
Prices start from $632 USDSave up to $978 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.

B+
0.50ct Marquise
$632 USD