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Marquise|Natural|GIA

0.50ct K SI1 Marquise Natural Diamond

ID • K/SI1 • GIA 2

Certificate GIA 2

Diamond specifications and retailer prices

From $1,183 NZD
As of November 6, 2026
Save $223 NZD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,406 NZD at DreamStone · As of November 4, 2026
View at DreamStone

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 4, 2026, with prices from $1,183 to $1,406, a $223 spread on the same certified stone. DreamStone lists it at $1,406. 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
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2
Dimensions7.68 × 4.26 × 2.62 mm
L/W Ratio1.80
Top View
7.68 mm4.26 mm0.50 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.4%

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 6
Current: $1,406 NZD|Low: $1,183 NZD|High: $1,406 NZD|Avg: $1,286 NZD
DreamStone
Retailer 2
Retailer 3
September 26, 2026
Retailer 3$1,183 NZD
Retailer 2$1,250 NZD
DreamStone$1,406 NZD

2 data points across 3 retailers

3 retailers$1,183 NZD to $1,406 NZD

B+
Cheapest Retailer
-
$1,183 NZD
B+
Retailer 2
-
$1,250 NZD
View
Most Expensive
B
DreamStone
636c1d5b76315c1dde59c182 · Nov 4
$1,406 NZD
$780 USD
View
2 more retailers have this diamond
Prices start from $1,183 NZDSave up to $223 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
$1,183 NZD