Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3555673014

Certificate GIA 3555673014

Diamond specifications and retailer prices

From $841 USD
As of October 29, 2026
Save $1,011 USD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,153 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 E 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 3555673014. Listed at 23 retailers as of October 29, 2026, with a 120% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.8°
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 3555673014
Dimensions8.04 × 4.23 × 2.56 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
8.04 mm4.23 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555673014
Side View
Table 61.0%Crown 37.8°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,153 USD|Low: $648 USD|High: $3,153 USD|Avg: $1,192 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 15$648 USD
Retailer 20$841 USD
Retailer 9$843 USD
Retailer 18$845 USD
Retailer 3$894 USD
Retailer 11$902 USD
Retailer 5$911 USD
Retailer 14$911 USD
Retailer 4$915 USD
Retailer 12$920 USD
Retailer 22$946 USD
Retailer 6$1,051 USD
Retailer 19$1,070 USD
Retailer 8$1,130 USD
Retailer 2$1,178 USD
Retailer 21$1,315 USD
Retailer 10$1,328 USD
Retailer 16$1,411 USD
Retailer 17$1,548 USD
Retailer 7$1,628 USD
Retailer 13$1,852 USD
NZ Jewellers$3,153 USD

45 data points across 22 retailers

23 retailers$841 USD to $1,852 USD

Retailer 1
-
$589 USD
HK$4,600 HKD
Price last confirmed 56 days ago
Retailer 2
-
$729 USD
View
Price last confirmed 59 days ago
B+
Retailer 3
-
$841 USD
View
Final sale: no returns
B+
Retailer 4
-
$843 USD
View
B+
Retailer 5
-
$845 USD
View
B+
Retailer 6
-
$894 USD
View
B+
Retailer 7
-
$902 USD
View
B+
Retailer 8
-
$911 USD
View
B+
Retailer 9
-
$911 USD
View
B+
Retailer 10
-
$915 USD
View
B+
Retailer 11
-
$920 USD
View
B+
Retailer 12
-
$946 USD
View
B
Retailer 13
-
$1,051 USD
View
B
Retailer 14
-
$1,070 USD
View
B+
Retailer 15
-
$1,130 USD
View
B+
Retailer 16
-
$1,178 USD
£928 GBP
View
Retailer 17
-
$1,315 USD
A$2,023 AUD
View
Price last confirmed 26 days ago
B
Retailer 18
-
$1,328 USD
View
B
Retailer 19
-
$1,411 USD
€1,344 EUR
View
B
Retailer 20
-
$1,548 USD
ZAR 25,011 ZAR
View
B
Retailer 21
-
$1,628 USD
CA$2,261 CAD
View
B
Retailer 22
-
$1,852 USD
£1,458 GBP
View
Most Expensive
NZ Jewellers
a4464c76-57a6-4d98-832a-e3dcbcb31472 · Oct 30
$3,153 USD
View
Price under review
22 more retailers have this diamond
Prices start from $841 USDSave up to $1,011 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
$841 USD