Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2557165660

Certificate GIA 2557165660

Diamond specifications and retailer prices

From $585 USD
As of November 5, 2026
Save $1,825 USD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,410 USD 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 2557165660. Listed at 13 retailers as of November 5, 2026, with prices from $585 to $2,410, a $1,825 spread on the same certified stone. NZ Jewellers lists it at $2,410. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557165660
Dimensions8.53 × 4.10 × 2.47 mm
L/W Ratio2.08
Top View
8.53 mm4.10 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557165660
Side View
Table 58.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $917 USD|Low: $585 USD|High: $1,422 USD|Avg: $884 USD|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$585 USD
Retailer 7$709 USD
Retailer 6$784 USD
Retailer 3$787 USD
Retailer 8$798 USD
Retailer 1$917 USD
Retailer 4$1,084 USD
Retailer 5$1,407 USD

38 data points across 8 retailers

13 retailers$585 USD to $2,410 USD

A
Cheapest Retailer
-
$585 USD
A
Retailer 2
-
$709 USD
View
Final sale: no returns
A
Retailer 3
-
$769 USD
View
A
Retailer 4
-
$784 USD
View
A
Retailer 5
-
$787 USD
View
A
Retailer 6
-
$795 USD
View
A
Retailer 7
-
$798 USD
View
B+
Retailer 8
-
$871 USD
View
B+
Retailer 9
-
$887 USD
View
B+
Retailer 10
-
$917 USD
View
B+
Retailer 11
-
$1,084 USD
View
B
Retailer 12
-
$1,407 USD
View
Most Expensive
B
NZ Jewellers
0d6eefda-45c2-4910-8efa-370fbd0c370c · Nov 5
$2,410 USD
View
12 more retailers have this diamond
Prices start from $585 USDSave up to $1,825 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
$585 USD