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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3555673014

Certificate GIA 3555673014

Diamond specifications and retailer prices

From $1,496 NZD
As of November 4, 2026
Save $1,774 NZD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,609 NZD at NZ Jewellers · As of November 5, 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 November 4, 2026, with a 119% 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,609 NZD|Low: $1,247 NZD|High: $5,609 NZD|Avg: $2,325 NZD
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
November 6, 2026
Retailer 12$1,496 NZD
Retailer 10$1,503 NZD
Retailer 3$1,590 NZD
Retailer 5$1,621 NZD
Retailer 4$1,628 NZD
Retailer 14$1,683 NZD
Retailer 6$1,870 NZD
Retailer 11$1,903 NZD
Retailer 7$2,076 NZD
Retailer 13$2,337 NZD
Retailer 2$2,498 NZD
Retailer 8$2,759 NZD
Retailer 9$3,270 NZD
NZ Jewellers$5,609 NZD

45 data points across 14 retailers

23 retailers$1,496 NZD to $3,270 NZD

Retailer 1
-
$1,046 NZD
Price last confirmed 63 days ago
Retailer 2
-
$1,297 NZD
View
Price last confirmed 66 days ago
B+
Retailer 3
-
$1,496 NZD
View
Final sale: no returns
B+
Retailer 4
-
$1,500 NZD
View
Retailer 5
-
$1,503 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$1,590 NZD
View
B+
Retailer 7
-
$1,605 NZD
View
Retailer 8
-
$1,621 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$1,621 NZD
View
B+
Retailer 10
-
$1,628 NZD
View
B+
Retailer 11
-
$1,637 NZD
View
B+
Retailer 12
-
$1,683 NZD
View
B
Retailer 13
-
$1,870 NZD
View
B
Retailer 14
-
$1,903 NZD
View
B+
Retailer 15
-
$2,010 NZD
View
B+
Retailer 16
-
$2,076 NZD
View
Retailer 17
-
$2,337 NZD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$2,361 NZD
View
B
Retailer 19
-
$2,498 NZD
View
B
Retailer 20
-
$2,759 NZD
View
B
Retailer 21
-
$2,894 NZD
View
B
Retailer 22
-
$3,270 NZD
View
Most Expensive
NZ Jewellers
a4464c76-57a6-4d98-832a-e3dcbcb31472 · Nov 5
$5,609 NZD
$3,153 USD
View
Price under review
22 more retailers have this diamond
Prices start from $1,496 NZDSave up to $1,774 NZD

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
$1,496 NZD