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Marquise|Natural|GIA

0.50ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 6551667990

Certificate GIA 6551667990

Diamond specifications and retailer prices

From $1,295 NZD
$718 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $1,295 NZD at DreamStone
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 6551667990. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551667990
Dimensions4.05 × 8.75 × 2.45 mm
L/W Ratio2.16
Top View
4.05 mm8.75 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551667990
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 60.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $1,295 NZD|Low: $875 NZD|High: $1,295 NZD|Avg: $1,081 NZD
DreamStone
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 3$875 NZD
Retailer 5$940 NZD
Retailer 4$1,050 NZD
Retailer 2$1,091 NZD
Retailer 6$1,254 NZD
DreamStone$1,295 NZD

25 data points across 6 retailers

1 retailer

B
DreamStone
370783 · Nov 4
$1,295 NZD
$718 USD
View

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
$1,295 NZD