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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566202579

Certificate GIA 5566202579

Diamond specifications and retailer prices

From $556 USD
As of November 6, 2026
Save $1,332 USD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,888 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 I 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 5566202579. Listed at 16 retailers as of November 5, 2026, with prices from $556 to $1,888, a $1,332 spread on the same certified stone. NZ Jewellers lists it at $1,888. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566202579
Dimensions8.01 × 4.19 × 2.39 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
8.01 mm4.19 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566202579
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.1%

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 6
Current: $1,888 USD|Low: $556 USD|High: $1,916 USD|Avg: $836 USD|-1.5%
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
November 6, 2026
Retailer 5$556 USD
Retailer 7$570 USD
Retailer 11$602 USD
Retailer 3$615 USD
Retailer 13$648 USD
Retailer 4$649 USD
Retailer 15$695 USD
Retailer 10$732 USD
Retailer 8$733 USD
Retailer 2$734 USD
Retailer 6$795 USD
Retailer 9$885 USD
Retailer 12$929 USD
Retailer 14$1,388 USD
NZ Jewellers$1,888 USD

25 data points across 15 retailers

16 retailers$556 USD to $1,888 USD

A
Cheapest Retailer
-
$556 USD
Final sale: no returns
A
Retailer 2
-
$570 USD
View
A
Retailer 3
-
$602 USD
View
Retailer 4
-
$615 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$648 USD
View
Retailer 6
-
$649 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$695 USD
View
B+
Retailer 8
-
$732 USD
View
B+
Retailer 9
-
$733 USD
View
B+
Retailer 10
-
$734 USD
View
B
Retailer 11
-
$795 USD
View
B+
Retailer 12
-
$885 USD
View
B+
Retailer 13
-
$929 USD
View
Retailer 14
-
$936 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
$1,388 USD
View
Most Expensive
B
NZ Jewellers
5f9e60fc-e73c-476b-a924-7d86aaa3e94e · Nov 5
$1,888 USD
View
15 more retailers have this diamond
Prices start from $556 USDSave up to $1,332 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
$556 USD