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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 $1,003 NZD
As of November 6, 2026
Save $2,403 NZD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,406 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 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 $1,003 to $3,406, a $2,403 spread on the same certified stone. NZ Jewellers lists it at $3,406. 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
Colour
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: $3,406 NZD|Low: $1,003 NZD|High: $3,456 NZD|Avg: $1,508 NZD|-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$1,003 NZD
Retailer 7$1,028 NZD
Retailer 11$1,086 NZD
Retailer 3$1,109 NZD
Retailer 13$1,169 NZD
Retailer 4$1,171 NZD
Retailer 15$1,254 NZD
Retailer 10$1,320 NZD
Retailer 8$1,322 NZD
Retailer 2$1,324 NZD
Retailer 6$1,434 NZD
Retailer 9$1,596 NZD
Retailer 12$1,676 NZD
Retailer 14$2,504 NZD
NZ Jewellers$3,406 NZD

25 data points across 15 retailers

16 retailers$1,003 NZD to $3,406 NZD

A
Cheapest Retailer
-
$1,003 NZD
Final sale: no returns
A
Retailer 2
-
$1,028 NZD
View
A
Retailer 3
-
$1,086 NZD
View
Retailer 4
-
$1,109 NZD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$1,169 NZD
View
Retailer 6
-
$1,171 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,254 NZD
View
B+
Retailer 8
-
$1,320 NZD
View
B+
Retailer 9
-
$1,322 NZD
View
B+
Retailer 10
-
$1,324 NZD
View
B
Retailer 11
-
$1,434 NZD
View
B+
Retailer 12
-
$1,596 NZD
View
B+
Retailer 13
-
$1,676 NZD
View
Retailer 14
-
$1,688 NZD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$2,504 NZD
View
Most Expensive
B
NZ Jewellers
5f9e60fc-e73c-476b-a924-7d86aaa3e94e · Nov 5
$3,406 NZD
$1,888 USD
View
15 more retailers have this diamond
Prices start from $1,003 NZDSave up to $2,403 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.

A
0.50ct Marquise
$1,003 NZD